# Non Isolated POL DC/DC Converter, ITE & Industrial, Quarter Brick, DIP, 1 Output, 1.3 kW, 12 V
**URL**: https://novapart.co/products/MPQ1300-12V108-L48NBMC/non-isolated-pol-dc-converter-ite-industrial
**SKU**: MPQ1300-12V108-L48NBMC
**Manufacturer**: MURATA POWER SOLUTIONS
**Category**: Power & Line Protection || Power Supplies || DC / DC Converters || DC / DC Non Isolated Board Mount Converters - Fixed Output
**Price**: €88.6400
**Stock**: 10+
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| Depth | 58.42mm |
| Width | 36.83mm |
| Height | 14mm |
| Product Range | MPQ Series |
| No. Of Outputs | 1 Output |
| Output Power Max | 1.3kW |
| Output Current Max | 108A |
| Output Voltage Nom | 12V |
| Input Voltage Dc Max | 60V |
| Input Voltage Dc Min | 40V |
| Dc / Dc Converter Type | Quarter Brick, DIP |
| Power Supply Applications | ITE & Industrial |
| Dc / Dc Converter Mounting | Through Hole |
| Dc / Dc Converter Output Type | Fixed |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:4849952/)
**MPQ1300-12V108-L48NBMC Series** 40-60Vin, 12Vout, 1300W DC-DC Converter
## **PRODUCT OVERVIEW**
MPQ1300-12V108-L48NBMC is a 1300W, non-isolated, high efficiency, digitally controlled DC-DC board-mount power converter with a regulated 12Vdc/108A output. PMBus® digital communication capability, supports a comprehensive command list providing capability for the system/host to configure control and monitor status. Robust hardware fault protection from overvoltage, overtemperature, and overload conditions is provided and supports operation over a wide temperature range.
The active current sharing capability enables two or more converters to be used in parallel for demanding datacom applications, thus delivering higher power on a single rail and improving redundancy. The MPQ130012V108-L48NBMC offers a competitive advantage in server, storage, and network applications requiring high power density, efficiency, and reliable DC-DC power conversion.
## **FEATURES**
- Input Range of 40-60V, (54V nominal)
|Input Range of 40-60V, (54V nominal)-60V, (54V nominal)60V, (54V nominal)|**ORDERING GUIDE**|||||||||
|---|---|---|---|---|---|---|---|---|---|
|Regulated 12V output
Continuous Output of 12V @ 108A
Peak Efficiency of98%
Industry Standard ¼ Brick Package
Baseplate for Cooling Optimization
3+ units can be operated in parallel
Overcurrent and Overvoltage
protection
PMBusTM 1.2 Interface (optional)
Black Box Stored Data
Power-Good Signal|**Part Number1**
**VIN**
**VOUT**
**POUT**
MPQ1300-12V108-L48NBC
40-60Vdc 12Vdc
1300W
1SeethePart NumberStructuretable onpage2 for moreinformation.
**ABSOLUTE MAXIMUM RATINGS1**
**Parameter**
**Conditions**
Input Voltage
Isolation Voltage
Input to Output
On/Off Remote Control
Power on,referred to -Vin
Output Power²
Vin=40-60V
Output Current
Current-limited,no damage|**L inch(mm)**
2.3 (58.42)
**Min.**
-0.5
-
-0.3
**-**
0|||**W inch(mm)**
1.45 (36.8)
**Nom.**
**Max.**
-
65
-
0
-
5
-
1700
-
108|||**H inch(mm)**
0.57 (14.5)
**Units**
Vdc
W
A||
|Remote On/Off Control
RoHS Compliant|OperatingTemperature Range**3**
Storage Temperature Range
Vin=Zero(nopower)||-40
-55||-
-|85
125|||°C|
- RoHS Compliant
1 Absolute maximum are stress ratings. Exposure of devices to greater than any of these conditions might adversely affect long-term reliability.
- ² Output peak power 1700W continuous 150ms.
> **3** See thermal consideration section.
## **SAFETY APPROVALS**
- UL 62368-1 3[rd] Edition
- CSA C22.2 No. 62368-1-19
- IEC 62368-1:2018
|**INPUT VOLTAGE CHARACTERISTICS**|**INPUT VOLTAGE CHARACTERISTICS**|||||
|---|---|---|---|---|---|
|**Parameter**
Input Voltage,Operating
Start-upVoltage|**Conditions**|**Min.**
40
36|**Nom.**
54
37|**Max.**
60
38|**Units**
Vdc|
|Input Capacitance|Per unit, Nichicon UPM2A271MHD or
equivalent|470|-|-|μF|
|Input Current|Vin @ 40V|-|-|35|A|
|Inrush Current**1**||-|-|50|% of Iin|
|Ripple Current**2**||-|1.25|-|mARMS/W|
|**OUTPUT VOLTAGE CHARACTERISTICS**
**Parameter**
**Conditions**
Peak Efficiency
Vin=40V,50% of Max Pout,Ta=25℃||**Min.**
-|**Nom.**
98|**Max.**
-|**Units**|
||Vin=54V,50% of Max Pout,Ta=25℃|-|97.5|-||
|Efficiency
SwitchingFrequency
Output Voltage Set Point
Output Current|Vin=54V,100% of Max Pout,Ta=25℃
Vin=48V,50% of Max Pout,Ta=25℃
Vin=48V,100% of Max Pout,Ta=25℃
Vin=54V, Pout=0W, Tc=25°C|12.04
0|97.1
97.6
97.2
180
12.1
-|-
-
-
-
12.16
108|%
kHz
Vdc
A|
|Output Power||-|-|1300|W|
|Ripple & Noise|20MHz Bandwidth|-|-|150|mVp-p|
|Output Capacitance|50% ceramic, 50% Oscon or POSCAP|1500|-|10,000|μF|
|Load regulation||-|-|125|mV|
|Line regulation||-|20|60|mV|
|Output voltage tolerance band|Vin=40-60V, 0-100% of Load|11.8|-|12.4|Vdc|
|**RELIABILITY & SAFETY**||||||
|**Parameter**|**Conditions**|**Min.**|**Nom.**|**Max.**|**Units**|
||Input to Output Test Voltage|-|-|0||
|Isolation Voltage|Input to Baseplate Test Voltage|-|-|0|Vdc|
||Baseplate to Output Test Voltage|-|-|0||
|Safety Rating|Non-Isolated|-|-|-|-|
|Isolation Capacitance||-|-|0|pF|
|Calculated MTBF|Telcordia SR-332 @ 90°C baseplate
temp.|2|-|-|Mhrs|
www.murata.com/products/power
MPQ1300-12V108-L48NBMC.A01.D05 Page 1 of 22
**MPQ1300-12V108-L48NBMC Series** 40-60Vin, 12Vout, 1300W DC-DC Converter
## **NOTES: (continued from page 1)**
> 1 1 Iin is defined as the steady-state operating current when unit is operating at Vin Max and Pout Max. While Vout is rising, Pout is<=25% of Rated Power with a resistive load. 2 Measured at input pin with maximum specified Cin and <500uH inductance between voltage source and Cin.
|**PART NUMBER STRUCTURE**|**PART NUMBER STRUCTURE**|**PART NUMBER STRUCTURE**|**PART NUMBER STRUCTURE**|**PART NUMBER STRUCTURE**|**PART NUMBER STRUCTURE**|**PART NUMBER STRUCTURE**|**PART NUMBER STRUCTURE**|**PART NUMBER STRUCTURE**|**PART NUMBER STRUCTURE**|**PART NUMBER STRUCTURE**|**PART NUMBER STRUCTURE**|**PART NUMBER STRUCTURE**|**PART NUMBER STRUCTURE**|**PART NUMBER STRUCTURE**|**PART NUMBER STRUCTURE**|**PART NUMBER STRUCTURE**|**PART NUMBER STRUCTURE**|**PART NUMBER STRUCTURE**|**PART NUMBER STRUCTURE**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|**Product Family**|M|P||||||||||||||MP = Murata Power||||
|**Form Factor**|||Q|Q||||||||||||Q = Quarter Brick||||
|**Output Power**|||||1300|||||||||||1300W||||
|**Output Voltage**||||||12V||||||||||12Vout||||
|**Output Current**|||||||108|||||||||108A||||
|**Input Voltage Range**||||||||L48||||||||L48 = 40-60Vin||||
|**On/Off Control Logic**|||||||||N|||||||N = Negative Logic (Default)||||
|**Mechanical Configuration**||||||||||B||||||B = Baseplate||||
|**PMBus (option)**|||||||||||M|||||M = with PMBus interface, Blank = without PMBus interface||||
|**Load Sharing (option)**||||||||||||S||||S = Load Sharing, Blank = No Load Sharing Option||||
|**Power Good Signal (option)**|||||||||||||G|||Contact factory.||||
|**RoHS**|||||||||||||||C|C = RoHS Compliant||||
|**TURN-ON/TURN-OFF CHARACTERISTICS**||||||||||||||||||||
|**Parameter**||||||||||**Conditions**||||**Min.**|||**Nom.**|**Max.**|**Units**|
|Turn-On Delay-1||||||||||From Vin reaching
Turn-On voltage,
Vin slew rate is
1V/ms.||||35|||-|55|ms|
|Turn-On Delay-2||||||||||From Enable
asserted||||-|||-|5||
|Restart Delay||||||||||||||-|||-|250||
|Output Voltage Rise Time||||||||||||||-|||-|15||
|Pre-Bias Voltage||||||||||||||0|||-|Vout|Vdc|
|**PROTECTION **||||||||||||||||||||
|**Parameter**||||||||||**Conditions**||||**Min.**|||**Nom.**|**Max.**|**Units**|
|Vin Undervoltage Shutdown||||||||||||||34|||35|36|Vdc|
|Vin Undervoltage Shutdown Recover||||||||||||||36|||37|38||
|Vin UVP Hysteresis||||||||||||||1|||-|3||
|Vin Overvoltage Shutdown||||||||||||||62|||64|66||
|Vin Overvoltage Shutdown Recover||||||||||||||60|||62|64||
|Vin OVP Hysteresis||||||||||||||1|||-|3||
|Vout Overvoltage Shutdown||||||||||||||-|||14|-||
|Output Over-Current||||||||||||||-|||134|-|A|
|Current Sharing Accuracy|||||||||||||||||-|10|%|
|Over-Temperature (internal temperature sensor)||||||||||||||115|||-|130|°C|
|Note: The protection threshold can be configurate through PMBus. See the PMBus section for details.||||||||||||||||||||
|**OUTPUT ENABLE(NEGATIVE LOGIC)**||||||||||||||||||||
|**Parameter**||||||||||**Conditions**||||**Min.**|||**Nom.**|**Max.**|**Units**|
|Unit OFF: On/Off Pin open or1, 2, 3||||||||||||||2.4|||-|20|Vdc|
|Unit ON: On/Off Pin low or1, 2, 3||||||||||||||-0.1|||-|0.8||
|Enable Pin Current (into pin, ext. pull-up to 15V)1, 2, 3||||||||||||||-|||-|0.5|mA|
|Enable Pin Current (into pin, ext. pull-up to 10V)1, 2, 3||||||||||||||-|||-|0.3||
|1Enable signal is referenced to Vin(-).
2Unit disabled via Control Pin, open collector configuration.
3The enable logic can be changed via PMBus.||||||||||||||||||||
|**DYNAMIC CHARACTERISTICS**||||||||||||||||||||
|**Parameter**||||||||||**Conditions**||||**Min.**|||**Nom.**|**Max.**|**Units**|
|Dynamic Load Response1, 2||||||||||||||-|||-|250|µS|
|Dynamic Load Peak Deviation1, 2||||||||||||||-|||-|±400|mV|
|Response to Vin Step3||||||||||||||-|||-|1.5|Vdc|
|125-75-25% load step of Pout Max at 1A/uS, settling time to within 1% of Vout, measurement method.
2With a 7500µF output capacitance, 50% ceramic, 50% OSCON or POSCAP.
3The occurring max 0.1v/us rate within Vin Operating Range, Pout = 10% - 100% Rated Power, Cout = Cout Max /2.||||||||||||||||||||
http://www.murata.com/products/power
MPQ1300-12V108-L48NBMC.A01.D05 Page 2 of 22
## **MPQ1300-12V108-L48NBMC Series**
40-60Vin, 12Vout, 1300W DC-DC Converter
|40-60Vin, 12Vout, 1300W DC-DC Converter
INNOVATOR
IN ELECTRONICS|40-60Vin, 12Vout, 1300W DC-DC Converter
INNOVATOR
IN ELECTRONICS|40-60Vin, 12Vout, 1300W DC-DC Converter
INNOVATOR
IN ELECTRONICS|40-60Vin, 12Vout, 1300W DC-DC Converter
INNOVATOR
IN ELECTRONICS|40-60Vin, 12Vout, 1300W DC-DC Converter
INNOVATOR
IN ELECTRONICS|40-60Vin, 12Vout, 1300W DC-DC Converter
INNOVATOR
IN ELECTRONICS|40-60Vin, 12Vout, 1300W DC-DC Converter
INNOVATOR
IN ELECTRONICS|40-60Vin, 12Vout, 1300W DC-DC Converter
INNOVATOR
IN ELECTRONICS|40-60Vin, 12Vout, 1300W DC-DC Converter
INNOVATOR
IN ELECTRONICS|
|---|---|---|---|---|---|---|---|---|
||||||||||
|**POWER-GOOD SIGNAL¹**|||||||||
|**Parameter **|**Conditions**|**Min.**|**Nom.**||**Max.**||**Units**||
|Output Voltage Low (trigger limits)||8.5|9.0||9.5||Vdc||
|Output Voltage Hysteresis||0.2|0.3||-||||
|High State Voltage||0|-||5.5||||
|High State Leakage Current (into Pin)||0|-||10||μA||
|Low State Voltage||0|-||0.8||Vdc||
|Low State Current (into Pin)||0|-||5||mA||
|Power Good Signal De-assert Response Time||0|-||3||ms||
|Power Good Signal Assert Response Time||0|-||3||||
|1The power good logic can be changed using PMBus.|||||||||
|**ENVIRONMENTAL CHARACTERISTICS**
**Parameter**
**Conditions**
**Min.**
**Nom.**
**Max.**
**Units**|||||||||
|Operating Temperature-Ambient||-40||-||85||°C|
|Storage Temperature||-50||-||125|||
|Altitude, Operating||-500||-||13,120||feet|
|Relative Humidity, Operating, Non-Condensing||10||-||90||%|
|Relative Humidity, Non-Operating, Non-Condensing||10||-||95|||
|Thermal Protection/Shutdown||||120||||°C|
|Electromagnetic Interference Conducted, EN55022/CISPR22, Part 15|With external
filter|||B||||Class|
|**GENERAL INFORMATION**|||||||||
|**Parameter**|**Conditions**|**Min.**|**Typ.**||**Max.**||**Units**||
|Mechanical Dimensions (L x W x H)||2.30 x 1.45 x 0.551|||||Inches||
|||58.42 x 36.83 x 14.00|||||mm||
|Product Weight (per unit)|||3.03||||Ounces||
||||86||||Grams||
|Pin Length|||0.210||||Inches||
||||5.53||||mm||
|Pin Diameter||0.040/0.060|||||Inches||
|||1.0/1.5|||||mm||
|Pin Material||Copper with gold plating over nickel under plating|||||||
|Baseplate Material||Black anodized aluminum|||||||
http://www.murata.com/products/power
MPQ1300-12V108-L48NBMC.A01.D05 Page 3 of 22
## **MPQ1300-12V108-L48NBMC Series**
40-60Vin, 12Vout, 1300W DC-DC Converter
## PERFORMANCE CURVES
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**----- Start of picture text -----**
ICAL PERFORMANCE DATA
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**----- Start of picture text -----**
Output Voltage vs. Input Voltage
14
12
10
8
6
No
4 Full
2
fe)
40 42 44 46 48 50 52 54 56
Input Voltage (V)
Output Voltage (V)
**----- End of picture text -----**
## **Efficiency vs. Output Power**
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**----- Start of picture text -----**
0.95FE
0.94
0.93
0.92
0.91
SELESS ECS
Output Power (W)
Efficiency
**----- End of picture text -----**
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**----- Start of picture text -----**
Output Power vs. Input Voltage
1400
1200
1000
800
600
400
200
0
40 42 44 46 48 50 52 54 56
Input Voltage (V)
Output Power (W)
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Power Loss
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**----- Start of picture text -----**
30 sav
=
60V
20
15
10
5
0
CE EE ESCEESES
Output Power (W)
Power Loss (W)
**----- End of picture text -----**
http://www.murata.com/products/power
MPQ1300-12V108-L48NBMC.A01.D05 Page 4 of 22
**MPQ1300-12V108-L48NBMC Series**
40-60Vin, 12Vout, 1300W DC-DC Converter
## PERFORMANCE CURVES
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**----- Start of picture text -----**
Output Power Derating 0.5" Heatsink (Vin=54V)
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**----- Start of picture text -----**
Output Power Derating 1" Heatsink (Vin=54V)
**----- End of picture text -----**
**Ripple & Noise Waveform (Vin = 54V, Iout = 108A) Transient Response (Vin = 54V, 25%-75%-25% Load, 1A/µS)**
**==> picture [237 x 29] intentionally omitted <==**
**----- Start of picture text -----**
Vout:50mV/div Time:20ms/div
)
Enable Turn On – Negative Logic (Vin = 54V, Iout = 108A)
**----- End of picture text -----**
**==> picture [151 x 33] intentionally omitted <==**
**----- Start of picture text -----**
Top Trace:Vout,500mV/div
Bottom trace:Iout,50A/div Time:5ms/div
)
Vin Turn On (Vin = 54V, Iout = 108A)
**----- End of picture text -----**
**==> picture [378 x 25] intentionally omitted <==**
**----- Start of picture text -----**
Top Trace:Vout,5V/div Top Trace:Vout,5V/div
Bottom trace:Venable,5V/div Time:5ms/div Bottom trace:Vin,20V/div Time:20ms/div
) )
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http://www.murata.com/products/power
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MPQ1300-12V108-L48NBMC.A01.D05 Page 5 of 22
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## **MPQ1300-12V108-L48NBMC Series**
40-60Vin, 12Vout, 1300W DC-DC Converter
## **PMBus Monitoring Accuracy**
|**Parameter**|**Notes and Conditions**|**Min.**|**Typ.**|**Max.**|**Units**|
|---|---|---|---|---|---|
|**PMBus General **|PMBusRev. 1.2; SMBALERT# is supported;PECis supported;Lineardataformat is used.|||||
|Bus Speed|||100/400||kHz|
|Logic High Input||2.1||3.3|Vdc|
|Logic Low Input||0||0.8|Vdc|
|Logic High Output||2.3|||Vdc|
|Logic Low Output||||0.4|Vdc|
|**PMBus Monitoring Accuracy**||||||
|VIN_READ||-4||4|%|
|VOUT_READ||-2||2|%|
|IOUT_READ|Vin=54V, Io=50%~100% of Io, max;|-5||5|%|
||Vin=54V, Io=5%~50% of Io, max;|-2.7||2.7|A|
|TEMP_READ||-5||5|°C|
## **PMBus Commands List**
|**CMD**|**Command Name**|**SMBus**
**Transaction**
**Type:**
**Writing**
**Data**|**SMBus**
**Transaction**
**Type:**
**Reading**
**Data**|**Number**
**Of Data**
**Bytes**|**Default Value**|**Default Value**|**Data limits**|**Unit**|
|---|---|---|---|---|---|---|---|---|
|01h|OPERATION|Write byte|Read Byte|1|0x80||||
|02h|ON_OFF_CONFIG|Write byte|Read Byte|1|0b000111x1||||
|03h|CLEAR_FAULTS|Send byte|N/A|0|N/A||||
|10h|WRITE_PROTECT|Write byte|Read Byte|1|0x00||||
|11h|STORE_DEFAULT_ALL|Send byte|N/A|0|N/A||||
|12h|RESTORE_DEFAULT_ALL|Send byte|N/A|0|N/A||||
|15h|STORE_USER_ALL|Send byte|N/A|0|N/A||||
|16h|RESTORE_USER_ALL|Send byte|N/A|0|N/A||||
|19h|CAPABILITY|N/A|Read Byte|1|0b10110000||||
|1Ah|QUERY|N/A|Block Write-
Block Read
Process Call|1|N/A||||
|1Bh|SMBALERT8|N/A|Block Write-
Block Read
Process Call|2|N/A||||
|20h|VOUT_MODE|N/A|Read Byte|1|0x1A||||
|22h|VOUT_TRIM|Write Word|Read Word|2|0x0000|0|-3-2|V|
|28h|VOUT_DROPP|Write Word|Read Word|2|0x0000|0|0-25|mΩ|
|35h|VIN_ON|Write Word|Read Word|2|0xE928|37.0|>VIN_OFF|V|
|36h|VIN_OFF|Write Word|Read Word|2|0xE918|35.0|**Transaction**
**Type:**
**Writing**
**Data**|**SMBus**
**Transaction**
**Type:**
**Reading**
**Data**|**Number**
**Of Data**
**Bytes**|**Default Value**|**Default Value**|**Data limits**|**Unit**|
|---|---|---|---|---|---|---|---|---|
|42h|VOUT_OV_WARN_LIMIT|Write Word|Read Word|2|0X0340|13.00|13.00~15.75|V|
|46h|IOUT_OC_FAULT_LIMIT|Write Word|Read Word|2|0XF218|134.0|0~150.0|A|
|47h|IOUT_OC_FAULT_RESPONSE|Write Byte|Read Byte|1|0x93||||
|4Ah|IOUT_OC_WARN_LIMIT|Write Word|Read Word|2|0xF208|115.0|0~150.0|A|
|4Fh|OT_FAULT_LIMIT|Write Word|Read Word|2|0xF230|120|0~150.0|°C|
|50h|OT_FAULT_RESPONSE|Write Byte|Read Byte|1|0xB8||||
|51h|OT_WARN_LIMIT|Write Word|Read Word|2|0xF208|110|0~150.0|°C|
|55h|VIN_OV_FAULT_LIMIT|Write Word|Read Word|2|0xEA00|64.0|40.0~70.0|V|
|56h|VIN_OV_FAULT_RESPONSE|Write Byte|Read Byte|1|0xB8||||
|57h|VIN_OV_WARN_LIMIT|Write Word|Read Word|2|0xE9F0|62.0|40.0~70.0|V|
|58h|VIN_UV_WARN_LIMIT|Write Word|Read Word|2|0xE960|37.0|30.0~70.0|V|
|59h|VIN_UV_FAULT_LIMIT|Write Word|Read Word|2|0xE950|35.0|30.0~70.0|V|
|5Ah|VIN_UV_FAULT_RESPONSE|Write Byte|Read Byte|1|0xB8||||
|5Eh|POWER_GOOD_ON|Write Word|Read Word|2|0x0223|8.80|6.5~10.7|V|
|5Fh|POWER_GOOD_OFF|Write Word|Read Word|2|0x0220|8.50|6.5~10.7|V|
|61h|TON_RISE|Write Word|Read Word|2|0x000A|10|0~1024|ms|
|78h|STATUS_BYTE|Write Byte|Read Byte|1|N/A||||
|7Ch|STATUS_INPUT|Write Byte|Read Byte|1|N/A||||
|7Dh|STATUS_TEMPERATURE|Write Byte|Read Byte|1|N/A||||
|7Eh|STATUS_CML|Write Byte|Read Byte|1|N/A||||
|88h|READ_VIN|N/A|Read Word|2|N/A|||V|
|8Bh|READ_VOUT|N/A|Read Word|2|N/A|||V|
|8Ch|READ_IOUT|N/A|Read Word|2|N/A|||A|
|8Dh|READ_TEMPERATURE_1|N/A|Read Word|2|N/A|||°C|
|94h|READ_DUTY_CYCLE|N/A|Read Word|2|N/A||||
|95h|READ_FREQUENCY|N/A|Read Word|2|N/A|||kHz|
|96h|READ_POUT|N/A|Read Word|2|N/A|||W|
|98h|PMBUS_REVISION|N/A|Read Byte|1|0x22||||
|99h|MFR_ID|N/A|Block Read|<=22|"Murata Power Solutions"||||
|9Ah|MFR_MODEL|Block Write*|Block Read|<=28|"MPQ1300-
12V108##############"||||
|9Bh|MFR_REVISION|Block Write*|Block Read|<=6|"S00.00"||||
|9Ch|MFR_LOCATION|Block Write*|Block Read|<=9|"DAS-WUHAN"||||
|9Dh|MFR_DATE|Block Write*|Block Read|<=10|"08/23/2023"||||
|9Eh|MFR_SERIAL|Block Write*|Block Read|<=14|"000000001#####"||||
|A0h|MFR_VIN_MIN|N/A|Read Word|2|0xE900|32.0||V|
|A1h|MFR_VIN_MAX|N/A|Read Word|2|0xEA00|64.0||V|
http://www.murata.com/products/power
MPQ1300-12V108-L48NBMC.A01.D05 Page 7 of 22
## **MPQ1300-12V108-L48NBMC Series**
40-60Vin, 12Vout, 1300W DC-DC Converter
|**CMD**|**Command Name**|**SMBus**
**Transaction**
**Type:**
**Writing**
**Data**|**SMBus**
**Transaction**
**Type:**
**Writing**
**Data**|**SMBus**
**Transaction**
**Type:**
**Reading**
**Data**|**Number**
**Of Data**
**Bytes**|**Default Value**|**Default Value**|**Data limits**|**Unit**|
|---|---|---|---|---|---|---|---|---|---|
|A2h|MFR_IIN_MAX||N/A|Read Word|2|0xF0C3|48.75||A|
|A3h|MFR_PIN_MAX||N/A|Read Word|2|0x1226|2200||W|
|A4h|MFR_VOUT_MIN||N/A|Read Word|2|0x028C|10.18||V|
|A5h|MFR_VOUT_MAX||N/A|Read Word|2|0x0380|14.00||V|
|A6h|MFR_IOUT_MAX||N/A|Read Word|2|0x2A80|170.0||A|
|A7h|MFR_POUT_MAX||N/A|Read Word|2|0x11F4|2000||W|
|A8h|MFR_TAMBIENT_MAX||N/A|Read Word|2|0xF154|85.0||°C|
|A9h|MFR_TAMBIENT_MIN||N/A|Read Word|2|0xF760|-40.0||°C|
|Adh|IC_DEVICE_ID||N/A|Block Read|26|"Microchip dsPIC33CK64MP103"||||
|DAh|MFR_EEPROM_ERASE||Write Word*|Read Word|2|N/A||||
|DDh|MFR_ON_OFF_CONFIG||Write Byte*|Read Byte|1|N/A||||
|DEh|MFR_POWER_GOOD_POLARITY||Write Byte|Read Byte|1|0b00000000||||
|DFh|MFR_BLACK_BOX_CONFIG||Write Byte|Read Byte|1|0b00000011||||
|E0h|MFR_READ_HISTORY EVENTS||N/A|Block Read|32|N/A||||
|E1h|MFR_SET_HISTORY_EVENT_OFFSET||Write Byte|Read Byte|1|N/A||||
|E8h|MFR_VIN_OV_HYS||Write Word*|Read Word|2|0xE810|2.0|0~10.0|V|
|E9h|MFR_VIN_UV_HYS||Write Word*|Read Word|2|0xE810|2.0|0~10.0|V|
|EAh|MFR_TEMPERATURE_OT_HYS||Write Word*|Read Word|2|0xF028|10.0|0~20.0|°C|
|F6h|MFR_CALIBRATION_STATUS||N/A|Read Byte|1|N/A||||
|F8h|CAL_READ_VOUT||Block Write*|Block Read|4|N/A||||
|F9h|CAL_READ_VIN||Block Write*|Block Read|4|N/A||||
|FAh|CAL_READ_IOUT||Block Write*|Block Read|4|N/A||||
|FBh|CAL_VOUT_ADJUST||Write Word|Read Word|2|N/A||||
|FCh|MFR_SUPERVISOR_PASSWORD||Block Write|N/A|N/A|N/A||||
## **Notes:**
* Only available in supervisor mode (default state is user mode, send password to command 0xFC to change to supervisor mode).
- Unit restores the entire contents of the non-volatile User Store memory when powered up.
- PEC is supported.
- Max bus speed: 400kHz.
- Linear data format used.
- Addressing: if PMBus address setting is out of the address table, default PMBus address 64d is assigned instead.
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MPQ1300-12V108-L48NBMC.A01.D05 Page 8 of 22
**MPQ1300-12V108-L48NBMC Series** 40-60Vin, 12Vout, 1300W DC-DC Converter
## **MFR Commands**
## **01-CFh Refer to PMBUS 1.2 SPEC**
## **DAh MFR_EEPROM_ERASE**
Erase the data stored in EEPROM
## **DDh MFR_ON_OFF_CONFIG**
## Set the ON/OFF polarity
|**Bits**|**Meaning**|
|---|---|
|7:3|RSVD|
|2|Controls how the unit responds to the CONTROL
pin
1:Unit requires the primary ON/OFF pin to be
asserted to start the unit
0:Unit ignores theprimaryON/OFFpin|
|1|Polarity of primary ON/OFF logic
1:Active high (Pull high or open to start the unit)
0:Active low (Pull pin low to start the unit)|
|0|RSVD|
## **DEh MFR_POWER_GOOD_POLARITY**
Set the POWER GOOD signal polarity
|**Bits**|**Meaning**|
|---|---|
|7:1|RSVD|
|0|1:Negative logic, output low if Vout rises to
specific value
0:Positive logic, output high if Vout rises to
specific value|
## **DFh MFR_BLACK_BOX_CONFIG**
Config black box enable/disable and store mode
If overwrite function is disabled, black box only records 7 faults, then it will lock and no more faults will be recorded. If overwrite function is enabled, when fault log is full, the new fault will overwrite the previous fault, starting from entry 1.
|**Bits**|**Meaning**|
|---|---|
|7:2|RSVD|
|1|Overwrite function; 1: Enable 0: Disable|
|0|Black box function; 1: Enable 0: Disable|
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MPQ1300-12V108-L48NBMC.A01.D05 Page 9 of 22
**MPQ1300-12V108-L48NBMC Series** 40-60Vin, 12Vout, 1300W DC-DC Converter
## **E0h MFR_READ_HISTORY_EVENTS**
Read the black box stored data
|**Bytes**|**Meaning**|**Bytes**|**Meaning**|
|---|---|---|---|
|0|Event Number|16|Power On Timer Byte0|
|1|Status Word High Byte|17|Power On Timer Byte1|
|2|Status Word Low Byte|18|Power On Timer Byte2|
|3|Status Vout|19|Power On Timer Byte3|
|4|Status Iout|20|RSVD|
|5|Status Input|21|RSVD|
|6|Status Temperature|22|RSVD|
|7|Status CML|23|RSVD|
|8|READ_VIN High Byte|24|RSVD|
|9|READ_VIN Low Byte|25|RSVD|
|10|READ_VOUT High Byte|26|RSVD|
|11|READ_VOUT Low Byte|27|RSVD|
|12|READ_IOUT High Byte|28|RSVD|
|13|READ_IOUT Low Byte|29|RSVD|
|14|READ_TEMPERATURE High Byte|30|RSVD|
|15|READ_TEMPERATURE Low Byte|31|RSVD|
## **E1h MFR_SET_HISTORY_EVENT_OFFSET**
X - 1
**E8h MFR_VIN_OV_FAULT_HYS**
Hysteresis of VIN_OV_FAULT recover, linear data format.
**E9h MFR_VIN_UV_FAULT_HYS**
Hysteresis of VIN_UV_FAULT recover, linear data format.
## **EAh MFR_OT_FAULT_HYS**
Hysteresis of OT_FAULT recover, linear data format.
- **F6h MFR_CALIBRATION_STATUS**
Refer to calibration procedure file.
## **F8h CAL_READ_VOUT**
Refer to calibration procedure file.
## **F9h CAL_READ_VIN**
Refer to calibration procedure file.
## **FAh CAL_READ_IOUT**
Refer to calibration procedure file.
## **FBh CAL_VOUT_ADJUST**
Refer to calibration procedure file.
## **FCh MFR_SUPERVISOR_PASSWORD**
Set unit to supervisor mode or ROM mode. Refer to password table.
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MPQ1300-12V108-L48NBMC.A01.D05 Page 10 of 22
**MPQ1300-12V108-L48NBMC Series** 40-60Vin, 12Vout, 1300W DC-DC Converter
## **Status Word and Byte**
GREEN = supported **STATUS_VOUT STATUS_WORD STATUS_INPUT** 7 VOUT_OV_FAULT 7 VOUT 7 VIN_OV_FAULT 6 VOUT_OV_WARNING 6 IOUT/POUT 6 VIN_OV_WARNING 5 VOUT_UV_WARNING 5 INPUT 5 VIN_UV_WARNING 4 VOUT_UV_FAULT 4 MFR_SPECIFIC 4 VIN_UV_FAULT 3 VOUT_MAX Warning 3 POWER_GOOD# 5 VIN_UV_FAULT 2 TON_MAX_FAULT 2 FANS 2 IIN_OC_FAULT 1 TOFF_MAX_WARNING 1 OTHER 1 IIN_OC_WARNING 0 VOUT Tracking Error 0 UNKNOWN 0 PIN_OP_WARNING 7 BUSY **STATUS_IOUT** 6 OFF **STATUS_MFR_SPECIFIC** 7 IOUT_OC_FAULT 5 VOUT_OV_FAULT Manufacturer Defined 6 IOUT_OC_LV_FAULT 4 IOUT_OC_FAULT Manufacturer Defined 5 IOUT_OC_WARNING 3 VIN_UV_FAULT Manufacturer Defined 4 IOUT_UC_FAULT 2 TEMPERATURE Manufacturer Defined 3 Current Share Fault 1 CML Manufacturer Defined 2 In Power Limiting Mode 2 CML Manufacturer Defined ~~S=|=~~ 1 POUT_OP_FAULT Manufacturer Defined 0 POUT_OP_WARNING Manufacturer Defined ~~—_=~~ **STATUS_OTHER STATUS_TEMPERATURE** 7 Reserved **STATUS_FANS_1_2** 7 OT_FAULT 6 Reserved 7 Fan 1 Fault 6 OT_WARNING 5 Input A Fuse/Breaker Fault 6 Fan 2 Fault 5 UT_WARNING 4 Input B Fuse/Breaker Fault 5 Fan 1 Warning 4 UT_FAULT 3 Input A OR-ing Device Fault 4 Fan 2 Warning 3 Reserved 2 Input B OR-ing Device Fault 3 Fan 1 Speed Override 2 Reserved 1 Output OR-ing Device Fault 2 Fan 2 Speed Override 1 Reserved 0 Reserved 1 Air Flow Fault ~~=—S_~~ 0 Reserved 0 Air Flow Warning **STATUS_CML STATUS_FANS_3_4** 7 Invalid/Unsupported Command 7 Fan 3 Fault 6 Invalid/Unsupported Data 6 Fan 4 Fault 5 Packet Error Check Failed 5 Fan 3 Warning 4 Memory Fault Detected 4 Fan 4 Warning 3 Processor Fault Detected 3 Fan 3 Speed Override 2 Reserved 2 Fan 4 Speed Override 1 Other Communication Fault 1 Reserved ~~=~~ 0 Other Memory Or Logic Fault 0 Reserved
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MPQ1300-12V108-L48NBMC.A01.D05 Page 11 of 22
**MPQ1300-12V108-L48NBMC Series** 40-60Vin, 12Vout, 1300W DC-DC Converter
## **PMBus Address List**
The Module has flexible PMBus addressing capability. By connecting different resistors from Address pin to GND pin, 14 possible addresses can be acquired. The 7-bit PMBus address is defined by the value of the resistor as shown in the table below, and +/-1% resistor accuracy is acceptable. If there is any resistance exceeding the requested range, default address 126 is returned.
PMBus address is selected by applying an external resistor from the Address to Vout (-) as defined in the table below.
|PMBus Address|Resistor Value(Kohm)|
|---|---|
|96|10|
|97|15|
|98|21|
|99|28|
|100|35.7|
|101|45.3|
|102|56.2|
|103|69.8|
|104|88.7|
|105|107|
|106|130|
|107|158|
|108|191|
|109|232|
|+/-1% resistor accuracy is acceptable.||
If PMBus address setting out of the address table, default PMBus address 64d is assigned instead.
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MPQ1300-12V108-L48NBMC.A01.D05 Page 12 of 22
**MPQ1300-12V108-L48NBMC Series**
40-60Vin, 12Vout, 1300W DC-DC Converter
## **PIN DEFINITION/DETAILS**
|**PIN DEFINITION/DETAILSON/DETAILSN/DETAILS/DETAILSDETAILSS**|**PIN DEFINITION/DETAILSON/DETAILSN/DETAILS/DETAILSDETAILSS**|**PIN DEFINITION/DETAILSON/DETAILSN/DETAILS/DETAILSDETAILSS**|**PIN DEFINITION/DETAILSON/DETAILSN/DETAILS/DETAILSDETAILSS**|**PIN DEFINITION/DETAILSON/DETAILSN/DETAILS/DETAILSDETAILSS**|**PIN DEFINITION/DETAILSON/DETAILSN/DETAILS/DETAILSDETAILSS**|**PIN DEFINITION/DETAILSON/DETAILSN/DETAILS/DETAILSDETAILSS**|
|---|---|---|---|---|---|---|
|**Input/Output Pinout Table**|||||||
|**Pin #**||**Notes**|**Diameter (inches)**|**Length (inches)**|**Name**|**Function**|
|J1||1,2|0.040|0.210|Vin(+)|Positive input voltage|
|J2||1,2|0.040|0.210|RC|Turns Unit On(low)and Off(high or open)|
|J3||1,2|0.040|0.210|Vin(-)|Negative input voltage|
|J4||1,2|0.060|0.210|Vout(-)|Negative output voltage|
|J5||1,2|0.060|0.210|Vout(-)|Negative output voltage|
|J7||1,2|0.060|0.210|Vout(+)|Positive output voltage|
|J8||1,2|0.060|0.210|Vout(+)|Positive output voltage|
|J6-1|||0.028|0.161|PG|Power Good|
|J6-2|||0.028|0.161|AGND||
|J6-3|||0.028|0.161|DATA||
|J6-4|||0.028|0.161|ALERT||
|J6-5|||0.028|0.161|CLOCK||
|J6-6|||0.028|0.161|ADDR0||
|J6-7|||0.028|0.161|I_SHARE_BUS||
|1|Tolerance onpin diameter is ± 0.0015”,tolerance onpin length is ± 0.010”.||||||
|2|Unit’s footprint on Customer’s PCB will have pin holes that are 40mils larger than unit pin diameter. Design of unit must prevent the unit from mounting lower
on customer’s PCB than intended. If pin shoulders are used for this purpose, they must be a minimum (including tolerance) of 45mils larger than the unit’s
nominal pin diameter. Shoulder design must allow out-gassing from pin holes during customer’s manufacturing process.||||||
1 Tolerance on pin diameter is ± 0.0015”, tolerance on pin length is ± 0.010”. Unit’s footprint on Customer’s PCB will have pin holes that are 40mils larger than unit pin diameter. Design of unit must prevent the unit from mounting lower 2 on customer’s PCB than intended. If pin shoulders are used for this purpose, they must be a minimum (including tolerance) of 45mils larger than the unit’s - ’ nominal pin diameter. Shoulder design must allow out gassing from pin holes during customer s manufacturing process.
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MPQ1300-12V108-L48NBMC.A01.D05 Page 13 of 22
**MPQ1300-12V108-L48NBMC Series** 40-60Vin, 12Vout, 1300W DC-DC Converter
## **MECHANICAL INFORMATION**
## **Through-Hole Mount, Baseplate Version**
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MPQ1300-12V108-L48NBMC.A01.D05 Page 14 of 22
**PACKAGING INFORMATION**
**MPQ1300-12V108-L48NBMC Series** 40-60Vin, 12Vout, 1300W DC-DC Converter
**MPQ = 90**
**(15 units per tray, 2 trays per box, 3 boxes/cartons)**
**Shipping Box Dimensions = 10.0 inches x 10.0 inches x 2.5 inches**
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MPQ1300-12V108-L48NBMC.A01.D05 Page 15 of 22
**MPQ1300-12V108-L48NBMC Series**
40-60Vin, 12Vout, 1300W DC-DC Converter
## **TECHNICAL NOTES**
## **THROUGH-HOLE SOLDERING GUIDELINES**
Murata Power Solutions recommends the specifications below when installing these converters. These specifications vary depending on the solder type. Exceeding these specifications can cause damage to the product. Your production environment can differ; therefore, thoroughly review these guidelines with your process engineers.
## **Wave Solder Operations for through-hole mounted products (THMT)**
**For Sn/Ag/Cu based solders: For Sn/Pb based solders:** Maximum Preheat Temperature 115ºC. Maximum Preheat Temperature 105ºC. Maximum Pot Temperature 270ºC. Maximum Pot Temperature 250ºC. Maximum Solder Dwell Time 7 seconds Maximum Solder Dwell Time 6 seconds
## **Input Fusing**
Certain applications and/or safety agencies might require fuses at the inputs of power conversion components. Fuses should also be used when there is the possibility of sustained input voltage reversal which is not currently limited. For greatest safety, Murata recommends a fast blow fuse installed in the ungrounded input supply line with a value which is approximately twice the maximum line current, calculated at the lowest input voltage. The installer must observe all relevant safety standards and regulations. For safety agency approvals, install the converter in compliance with the end-user safety standard.
## **Input Under-Voltage Shutdown and Start-Up Threshold**
Under normal start-up conditions, converters will not begin to regulate properly until the rising input voltage exceeds and remains at the Start-Up Threshold Voltage (see Specifications). Once operating, converters will not turn off until the input voltage drops below the Under-Voltage Shutdown Limit. Subsequent restart will not occur until the input voltage rises again above the Start-Up Threshold. This built-in hysteresis prevents any unstable on/off operation at a single input voltage. Users should be aware however of input sources near the Under-Voltage Shutdown whose voltage decays as input current is consumed (such as capacitor inputs), the converter shuts off and then restarts as the external capacitor recharges. Such situations could oscillate. To prevent this, ensure the operating input voltage is well above the UV shutdown voltage at all times.
## **Start-Up Delay**
Assuming that the output current is set at the rated maximum, the Vin to Vout Start-Up Time (see Specifications) is the time interval between the point when the rising input voltage crosses the Start-Up Threshold and the fully loaded regulated output voltage enters and remains within its specified regulation band. Actual measured times will vary with input source impedance, external input capacitance, input voltage slew rate and final value of the input voltage as it appears at the converter.
These converters include a soft start circuit to moderate the duty cycle of the PWM controller at power up, thereby limiting the input inrush current. The On/Off Remote Control interval from inception to Vout regulated assumes that the converter already has its input voltage stabilized above the Start-Up Threshold before the On command. The interval is measured from the On command until the output enters and remains within its specified regulation band. The specification assumes that the output is fully loaded at maximum rated current.
## **Input Source Impedance**
To ensure peak performance and stability of this module in all applications, the input source impedance and load conditions must be understood. The input source and load conditions will affect the performance of the module in the application. The input source must have a low impedance and to ensure this, a minimum input capacitor of 270uF is recommended, mounted as close as possible to the input pins of the module. The type of capacitor should also be considered, an electrolytic capacitor will degrade at lower temperatures therefore, the chosen capacitor should allow for temperature variations during operation of the module and maintain 270uF. If the input source is inductive, additional low ESR ceramic capacitors in the range of 22-100pF will be required across the Vin terminals to ensure stable operation. The output load also influences the minimum input capacitor requirements. Higher power, dynamic loading conditions might require higher input capacitance to ensure stable operation.
## **I/O Filtering, Input Ripple Current and Output Noise**
All models in this converter series are tested and specified for input reflected ripple current and output noise using designated external input/output components, circuits and layout as shown in the figures below. External input capacitors (Cin in the figure) serve primarily as energy storage elements, minimizing line voltage variations caused by transient IR drops in the input conductors. Users should select input capacitors for bulk capacitance (at appropriate frequencies), low ESR and high RMS ripple current ratings. In the following figure, the Cbus and Lbus components simulate a typical DC voltage bus. Your specific system configuration might require additional considerations. Note that the values of Cin, Lbus and Cbus vary according to the specific converter model.
Figure 2. Measuring Input Ripple Current
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MPQ1300-12V108-L48NBMC.A01.D05 Page 16 of 22
**MPQ1300-12V108-L48NBMC Series**
40-60Vin, 12Vout, 1300W DC-DC Converter
In critical applications, output ripple and noise (also referred to as periodic and random deviations (PARD) can be reduced by adding filter elements such as multiple external capacitors. Be sure to calculate component temperature rise from reflected AC current dissipated inside the capacitor ESR.
## **Minimum Output Loading Requirements**
All models regulate within specification and are stable under no load to full load conditions. Operation under no load might however slightly increase output ripple and noise.
## **Product Operating Temperature**
Product operating temperature is used to monitor the temperature of the product, and proper thermal conditions can be verified by measuring the temperature at position. Temperature at these positions (Tref_point) should not exceed the maximum temperature in the table below. The number of measurement points can vary with different thermal design and topology. Temperatures above maximum Tref_point, measured at the reference point are not allowed and can cause permanent damage.
**==> picture [214 x 19] intentionally omitted <==**
**----- Start of picture text -----**
Position Description Maximum Temperature
Reference point PCB Pin side Tref_point = 125°C
**----- End of picture text -----**
## **Thermal Shutdown**
To protect against thermal overstress, these converters include thermal shutdown circuitry. If environmental conditions cause the temperature of the DC/DC’s to rise above their operating temperature range (up to the shutdown temperature) an on-board electronic temperature sensor will power down the unit. When the temperature decreases below the turn-on threshold, the converter will automatically restart. There is a small amount of hysteresis to prevent rapid on/off cycling. The temperature sensor is typically located adjacent to the switching controller in the center of the unit. See the Performance and Functional Specifications.
**CAUTION** : If you operate too close to the thermal limits, the converter might shut down suddenly without warning. Ensure to thoroughly test the application to the fan flowrate specifications.
## **Temperature Derating Curves**
The graphs in this datasheet illustrate a typical operation under a variety of conditions. The Derating curves show the maximum continuous ambient air temperature and decreasing maximum output current, which is acceptable under increasing forced (airflow measured in Linear Feet per Minute “LFM”). Note that these are AVERAGE measurements. The converter accepts brief increases in current or reduced airflow if the average is not exceeded.
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MPQ1300-12V108-L48NBMC.A01.D05 Page 17 of 22
## **MPQ1300-12V108-L48NBMC Series**
40-60Vin, 12Vout, 1300W DC-DC Converter
Note that the temperatures are of the ambient airflow, not the converter itself which is obviously running at higher temperature than the outside air. Also note that very low flow rates (below about 25 LFM) are similar to “natural convection,” that is, not using fan-forced airflow.
Murata Power Solutions performs characterization measurements in a closed cycle wind tunnel with calibrated airflow. Both thermocouples and an infrared camera system are used to observe thermal performance. As a practical matter, it is quite difficult to insert an anemometer to precisely measure airflow in most applications. Sometimes it is possible to estimate the effective airflow if you thoroughly understand the enclosure geometry, entry/exit orifice areas and the fan flowrate specifications.
**CAUTION:** If you exceed these Derating guidelines, the converter might have an unplanned Over Temperature shut down. Also, these graphs are all collected near Sea Level altitude. Be sure to reduce the derating for higher altitude.
## **Output Current Limiting**
As soon as the output current increases to approximately 125% to 150% of its maximum rated value, the DC/DC converter shall enter current limiting mode. The output voltage shall decrease proportionally with increase in output current, thereby maintaining a somewhat constant power output. This is also commonly referred to as power limiting.
Current limiting inception is defined as the point at which full power falls below the rated tolerance. See the Performance/Functional Specifications. Note particularly that the output current might briefly rise above its rated value in normal operation as long as the average power is not exceeded. This enhances reliability and continued operation of your application. If the output current is too high the converter shall enter short circuit protection.
## **Output Short Circuit Protection**
When a converter is in current-limit mode, the output voltage will drop as the output current demand increases. If the output voltage drops too low (approximately 98% of nominal output voltage for most models), the magnetically coupled voltage used to develop the PWM bias voltage will also drop, thereby shutting down the PWM controller.
Following a time-out period, the PWM will restart, causing the output voltage to begin rising to its appropriate value. If the short-circuit condition persists, another shutdown cycle will initiate. This rapid on/off cycling is called “hiccup mode.” The hiccup cycling reduces the average output current, thereby preventing excessive internal temperatures and/or component damage.
The “hiccup” system differs from older latching short circuit systems because you do not have to power down the converter to make it restart. The system will automatically restore operation as soon as the short circuit condition is removed.
## **Remote On/Off Control**
On the input side, a remote On/Off Control can be used with negative logic.
**Negative** : Models with negative logic are on (enabled) when the On/Off is grounded or brought to within a low voltage (see Specifications) with respect to –Vin. The device is off (disabled) when the On/Off is left open or is pulled high to approximately +15V with respect to –Vin.
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MPQ1300-12V108-L48NBMC.A01.D05 Page 18 of 22
**MPQ1300-12V108-L48NBMC Series**
40-60Vin, 12Vout, 1300W DC-DC Converter
Dynamic control of the On/Off function should be able to sink the specified signal current when brought low and withstand appropriate voltage when brought high. Be aware to that there is a finite time in milliseconds (see Specifications) between the time of On/Off Control activation and a stable, regulated output. This time will vary slightly with output load type and current and input conditions.
## **Output Capacitive Load**
These converters do not require external capacitance added to
achieve rated specifications. Users should only
consider adding capacitance to reduce switching noise and/or to handle spike current step loads. Install only enough capacitance to achieve noise objectives. Excess external capacitance may cause regulation problems, slower transient response and possible instability. Proper wiring of the Sense inputs will improve these factors under capacitive load.
The maximum rated output capacitance and ESR specification is given for a capacitor installed immediately adjacent to the converter. Any extended output wiring or smaller wire gauge or less ground plane can tolerate somewhat higher capacitance. Also, capacitors with higher ESR might use a larger capacitance.
## **Load Sharing**
Load sharing occurs when two or more MPQs are connected in parallel, at both the input and output terminals, to supply greater output current than one unit alone or to offer system redundancy for moderate loads. If one converter fails, the other converter(s) will carry the load until the system is repaired.
MPQ’s design allows load sharing using the active current share method, compared to using traditional droop load sharing (DLS), it enables better thermal balance between load and sharing units. This is due to the higher accuracy achieved by active current sharing, and the fact that each unit can deliver higher output power in parallel mode. At light loads, the converter shall exhibit slightly higher output voltage and shall carry more of the output current. Since the MPQ’s synchronous rectifier design will not accept appreciable reverse output current, starting at zero load, the MPQ with the higher output voltage will carry more of the full load until the voltage at the output drops to that of the lower MPQ’s.
## **Load Sharing Guidelines**
If you want to operate two or more MPQ’s in load sharing, use the following guidelines:
[1] Operate both converters connected in parallel from the same 48V input power source. This simplifies the design and makes for more balanced power sharing. Using two different 48V input supplies must be carefully analyzed to avoid overloading one of the converters and is not recommended. Ensure the single 48V input source can supply the total current needed by all the parallel-connected MPQ’s. (It is possible to rate the full system at more than the current capacity of a single MPQ. However, you lose the redundancy protection feature.)
[2] Use conservative loading. Do not assume for example that two parallel MPQ’s can always supply “times two” amounts of output current. Allow for limits in input voltage and other factors. The maximum load of the paralleled modules equals to (max load of single module-6.25A) * number of paralleled modules. The maximum load during ramp up is still limited to number of modules x maximum load of single module x 90% (modules x Ioutmax x 0.9).
If one MPQ overloads while in load share, it protects itself by entering overcurrent mode. If the whole system is running close to maximum output current, the remaining good MPQ soon enters overcurrent mode. These two events might not happen together, possibly leaving the system operating in degraded mode for a while. The solution is conservative design to avoid getting close to the load limits.
[3] Make the input wiring lengths and wire gauges identical on both inputs and outputs. If in doubt, make some precision measurements under full load. If you attempt to measure the current in one of the converters using a series shunt, the current meter might introduce enough finite resistance to affect the readings.
(Note: Use a non-contacting “clamp-on” Hall effect DC current meter with zero IR loss.)
[4] If you add the optional input filters, use identical components with the same layout.
**==> picture [23 x 76] intentionally omitted <==**
**----- Start of picture text -----**
Unit 1
v
Unit 2 eee
**----- End of picture text -----**
[5] Operate both converters in the same temperature and airflow environment. Under load sharing, small differences in cooling can amplify into load imbalances.
[6] Avoid operation near the low input voltage limit of the converter. Another subtle factor here is the external source impedance of the input supply. A source with higher impedance at full load might make the net input voltage seen by the converter close to its minimum input voltage. Be sure to account for the decrease in effective input voltage under load.
For battery sources, this means that the batteries should be freshly charged and that the AC trickle charger is in good working order. Note that older batteries increase their internal cell impedance even if their no-load output voltage appears acceptable. What counts is the voltage seen at the MPQ input connections with full current.
[7] As with any system design, thoroughly test the MPQ’s connected in load sharing before committing the design to a real application.
The following table details the test results of units in parallel. Murata can meet 10% accuracy of current share. For 54Vin, the module operates in closed loop.
http://www.murata.com/products/power
MPQ1300-12V108-L48NBMC.A01.D05 Page 19 of 22
**MPQ1300-12V108-L48NBMC Series**
40-60Vin, 12Vout, 1300W DC-DC Converter
|**Current Share - Three Units in Parallel Test**|**Current Share - Three Units in Parallel Test**|**Current Share - Three Units in Parallel Test**|**Current Share - Three Units in Parallel Test**|**Current Share - Three Units in Parallel Test**|**Current Share - Three Units in Parallel Test**|**Current Share - Three Units in Parallel Test**|**Current Share - Three Units in Parallel Test**|**Current Share - Three Units in Parallel Test**|**Current Share - Three Units in Parallel Test**|**Current Share - Three Units in Parallel Test**|**Current Share - Three Units in Parallel Test**||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|**Vin (V)**|**Io Load**
**(A)**|**Io Load**
**(%)**|**UUT1 Iin (A)**|**UUT2**
**Iin (A)**|**UUT3**
**Iin (A)**|**Input**
**Rating(A)**
**(Po=1300W)**|**I1**
**Load**
**(%)**|**I2 Load**
**(%)**|**I3 Load**
**(%)**|**I1Share_Load**
**%**|**I2Share_Load**
**%**|**I3Share_Load**
**%**|
|54|81|25|5.983|6.319|6.450|25.430|31.906|33.698|34.396|-1.05256|0.26871|0.78385|
|54|162|50|11.970|12.667|12.879|25.430|31.906|33.764|34.329|-2.10513|0.63573|1.46939|
|54|243|75|18.450|18.935|19.328|25.430|32.532|33.387|34.080|-1.78660|0.12059|1.66601|
|54|324|100|24.579|25.745|26.103|25.430|32.160|33.686|34.154|-3.52602|1.05912|2.46690|
http://www.murata.com/products/power
MPQ1300-12V108-L48NBMC.A01.D05 Page 20 of 22
**MPQ1300-12V108-L48NBMC Series** 40-60Vin, 12Vout, 1300W DC-DC Converter
## **Emissions Performance**
Murata Power Solutions measures its products for conducted emissions against the EN 55022 and CISPR 22 standards. Passive resistance loads are employed and the output is set to the maximum voltage. If you set up your own emissions testing, ensure the output load is rated at continuous power while doing the tests. The recommended external input and output capacitors (if required) are included. Refer to the fundamental switching frequency. This information is detailed in the Product Specifications. An external discrete filter is installed and the circuit diagram is shown below.
## **[1] Conducted Emissions Parts List**
|**Reference**|**Description**|
|---|---|
|C1|10uF*2MLCC）+270uF*2（OS-CON）|
|C2|10uF*2（MLCC）+4.7uF*2（MLCC）|
|C3|4.7uF*2（MLCC）+1.2mF（OS-CON Cap）|
|L1|22uH|
|L2|22uH|
## **[2] Conducted Emissions Test Equipment Used**
Hewlett Packard HP8594L Spectrum Analyzer – S/N 3827A00153
- 2Line V-networks LS1-15V 50Ω/50Uh Line Impedance Stabilization Network
## **[3] Conducted Emissions Test Results – Positive Line**
Conducted Emissions Performance, Negative Line CISPR 22, Class B, full load
## **[4] Layout Recommendations**
Most applications can use the filtering which is already installed inside the converter or with the addition of the recommended external capacitors. For greater emissions suppression, consider additional filter components and/or shielding. Emissions performance will depend on the user’s PC board layout, the chassis shielding environment and choice of external components. Since many factors affect both the amplitude and spectra of emissions, Murata recommends using an engineer who is experienced at emissions suppression.
http://www.murata.com/products/power
MPQ1300-12V108-L48NBMC.A01.D05 Page 21 of 22
## **MPQ1300-12V108-L48NBMC Series**
40-60Vin, 12Vout, 1300W DC-DC Converter
## **Vertical Wind Tunnel**
Murata Power Solutions employs a computer controlled custom designed closed loop vertical wind tunnel, infrared video camera system, and test instrumentation for accurate airflow and heat dissipation analysis of power products.
**==> picture [265 x 311] intentionally omitted <==**
**----- Start of picture text -----**
>
IR transparent
optical window Variant
Unit Under Speed Fan
IR Video i Test (UUT)
eS )
Heating
Element
Precision low-rate
anemometer 3”
below UUT
Ambient
temperature sensor
—_
Airflow collimator
**----- End of picture text -----**
The system includes a precision low flow-rate anemometer, variable speed fan, power supply input and load controls, temperature gauges, and adjustable heating element.
The IR camera monitors the thermal performance of the Unit Under Test (UUT) under static steady-state conditions. A special optical port is used which is transparent to infrared wavelengths.
Both through-hole and surface mount converters are soldered down to a 10" x 10" host carrier board, for realistic heat absorption and spreading. Both longitudinal and transverse airflow studies are possible by rotation of this carrier board since there are often significant differences in the heat dissipation in the two airflow directions.
The combination of adjustable airflow, adjustable ambient heat, and adjustable Input/Output currents and voltages mean that a very wide range of measurement conditions can be studied.
The collimator reduces the amount of turbulence adjacent to the UUT. Such turbulence influences the effective heat transfer characteristics and gives false readings. Excess turbulence removes more heat from some surfaces and less heat from others, possibly causing uneven overheating.
Both sides of the UUT are studied since there are different thermal gradients on each side. The adjustable heating element and fan, built-in temperature gauges, and no-contact IR camera mean that power supplies are tested in real-world conditions.
**Figure 6. Vertical Wind**
Murata Power, Inc. 129 Flanders Road Westborough, MA 01581 USA ISO 9001 and 14001 REGISTERED
**This product is subject to the following operating requirements and the Life and Safety**
**Critical Application Sales Policy: Refer to:** https://www.murata.com/products/power/requirements/
Murata Power, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. _©2024 Murata Power, Inc._
~~ee~~ http://www.murata.com/products/power
MPQ1300-12V108-L48NBMC.A01.D05 Page 22 of 22
## Links
- [View this product on Novapart](https://novapart.co/products/MPQ1300-12V108-L48NBMC/non-isolated-pol-dc-converter-ite-industrial)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/murata-power-solutions/mpq1300-12v108-l48nbmc/dc-dc-converter-12v-108a/dp/4849952)
---
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