CPS253-M1

**POWER** a, 

## **Data Sheet** 

**CPS250-M Series** 250 Watt AC-DC Power Supplies 

**Total Power:** 250 Watts **Input Voltage:** 90 - 264 V **# of Outputs:** Single 

## SPECIAL FEATURES 

- Designed for forced air and natural convection cooling 

- Medical and ITE safety approvals, 2x MOPP 

Dual fused 

Type BF ready Active Power Factor Correction, 61000-3-2 compliant 

Built-in Class B EMI filter 

Less than 1U high 

LPX100 enclosure kit available 

- <500 mW no-load power consumption 

- For use in Class I or Class II applications 

Three-year warranty (consult factory for extended terms) 

## SAFETY 

EN 60950-1 / 60601-1 

UL 60950-1 / 60601-1 

- CSA 

CE LVD Mark 

- CCC 

## **Electrical Specifications** 

|**Electrical Specificationspecificationsecifications**|**Electrical Specificationspecificationsecifications**|
|---|---|
|**Input**||
|Input voltage ra nge|90 - 264 Vrms|
|Frequency|47 - 63 Hz(360 - 440 Hz with higher leakage)|
|Inrush current|70 Apk, < 1 ms, cold start|
|Efficiency|93% typical|
|Leakage current|Specified for medical approvals|
|No loadpower|< 500 mW|
|**Output**||
|Maximum power|250 W, forced-air cooling<br>155 W, free-air natural convection|
|Adjustment range|-0% / +10%|
|Holduptime|10 ms @ 225 W|
|Fan output|12 V @ 500 mA|
|Standby output|5 V @ 100 mA (For CPS253-M1 only)|
|**Control and Protection**||
|Remote On/Off|For CPS253-M1 only|
|DC OK|For CPS253-M1 only|
|Overvoltageprotection|Latching/AC Recycle required to restart PSU|
|Overcurrentprotection|Auto-recovery|
|Short circuitprotection|Auto-recovery (impedance <50 mOhm|
|Overtemperatureprotection|Auto-recoverywith hysteresis|



## **Environmental Specifications** 

|Operatingtemperature|-20 °C to +70 °C(derate at 50 °C), startupat -40 °C|
|---|---|
|Storage temperature|-40 °C to +85 °C|
|Operatinghumidity|5% to 90%(non-condensing)|
|Non-operatinghumidity|5% to 95%(non-condensing)|
|Maximum altitude|5000 m(3000 m for medical), deratingmayapply|



|**Other Specifications**|**Other Specifications**|
|---|---|
|Isolation|4000 Vac (input to output)<br>1500 Vac(input to PE;output to PE)|
|Line harmonics|61000-3-2, Class A|
|Conducted EMI*|Level B, CISPR 22 and FCC Part 15|
|Radiated EMI*|Level B, CISPR 22 and FCC Part 15|
|Surge immunity|Level 3, 61000-4-5, Criterion A|
|Medical EMC|60601-1-2, Edition 4(cover maybe required for some tests)|
|MTBF<br>(Telcordia, Issue 3, Method 1 Case 3)|> 2.2 MHrs, 25 °C, 155 W Natural Convection, 115 VAC<br>> 5.1 MHrs, 25 °C, 250 W Forced Air, 115 VAC|



*Applies to Class I input with ground tabs tied to a common ground plane and connected to system ground. Consult Technical Reference Notes for details. 

## **Pin Assignments** 

|**Pin Assignments**|**Pin Assignments**|**Pin Assignments**|**Pin Assignments**|
|---|---|---|---|
|Connector|Pin Number|Designation|Mating Conectors|
|J5 (AC Input)|1<br>3<br>Mounting Holes|AC Input L1/Line<br>AC Input L2/Neutral<br>PE|Molex 09-50-8031 housing with 45570-3000 crimp or<br>equivalent. Use AWG 20-18 wires.|
|J0 (DC Output)|1<br>2<br>3<br>4<br>5<br>6|Main Output Return<br>Main Output Return<br>Main Output Return<br>Main Output<br>Main Output<br>Main Output|Molex 09-50-8061 housing with 45570-3000 crimp or<br>equivalent. Use AWG 20-18 wires.|
|BusBar (DC Output)<br>_Applies to 12 V variant only._|1<br>2|Main Output<br>Main Output Return|Ring terminal: Tyco 35148 or KST RV3-4 or equivalent.|
|J2 (Fan Supply)|1<br>2|Fan Return<br>Fan Voltage|Cvilux CI0102S0000 housing; CI01T01MPP0 crimp;<br>AWG 30-24.|
|J403<br>_Applies to CPS253-M1 only_|1<br>2<br>3<br>4<br>5|5 Vdc Standby<br>Standby Return<br>Remote Inhibit<br>DC OK<br>VFB (feedback loop pin)|Molex 504193-0500 with 504185-1000 crimp or<br>equivalent. Use AWG 30-26 wires.|



## **Mechanical Drawings - 12 V Variant** 

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32.77MAX Vo(+) ASSY-J0<br>50.8 0.3<br>2.5MAX (2X)43.8 0.3 (2X)3.5 0.1<br>J2-PIN 1<br>Q501<br>S E E  DETAIL A<br>J2<br>C C<br>B B<br>WARNING<br>LABEL C12 BARCODE<br>T501<br>L2<br>i — _F<br>= (le a> 0 a> 0 CID<br>lq > 0 a | | EF E<br>rl a> 0 aS 6 & ES T LIE<br>Gtr y ‘ NC AIAN A S) Aaa S S 4<br>ERO), 2 CE<br>\— M ODEL LABEL J5 -PIN 1 J INPUT \ J5 \<br>PREFERRED EARTH<br>Wy J<br>ier<br>HrerSeeS<br>SS<br>Kae<br>TIGHTENING TORQUE:<br>6.0-8.0Kgf-cm<br>CA P eg TP<br>RR j) pe 2 fae Sam 7 Uy,<br>Vo (-)<br>Vo (+) V R2<br>VR1 TRIMPOT FOR OCP LIMIT ADJUST<br>TRIMPOT FOR OUTPUT ADJUSTABILITY FULL CLOCKWISE:  250W<br>CLOCKWISE: INCREASING OUTPUT VOLTAGE FULL COUNTERCLOCKWISE: 155W<br>(4X) 4<br>(2X)3.5<br>0.3<br>0.3<br>6<br>101.<br>(2X)94.6<br>**----- End of picture text -----**<br>


## **Mechanical Drawings - 24 V and 48 V Variants** 

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**----- Start of picture text -----**<br>
32.77MAX Vo(+) ASSY-J0<br>50.8 0.3<br>2.5MAX LL (2X)43.8 0.3 (2X)3.5 . 0.1<br>J2-PIN 1 7<br>J2<br>i 2 Pate’ en : =:<br>WARNING<br>LABEL<br>BARCODE<br>C12<br>T501<br>am i ol 4 7 i<br>L2<br>ame [eoweoa| m aa:<br>ae ao — a _—-.) [ aa x<br>cli ; oa | (“ E A)<br>M ODEL LABEL J5 -PIN 1 INPUT J5 PREFERRED EARTH<br>ie) FRA<br>dS" See<br>GSS Q<br>er< pa Aa7) 2| aLEEeeI 4<br>VR2<br>VR1 TRIMPOT FOR OCP LIMIT ADJUST<br>TRIMPOT FOR OUTPUT ADJUSTABILITY FULL CLOCKWISE: 250W<br>CLOCKWISE: INCREASING OUTPUT VOLTAGE FULL COUNTERCLOCKWISE: 155W<br>4<br>0.1<br>(2X)3.5<br>0.3<br>0.3<br>6<br>101.<br>(2X)94.6<br>**----- End of picture text -----**<br>


## **Mechanical Drawings - CPS253-M1** 

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**----- Start of picture text -----**<br>
Vo(+) A SSY-J0<br>32.77MAX 50.8 0.3<br>(2X)43.8 0.3 (2X)3.5 0.1<br>2.5MAX<br>J2-PIN 1<br>i. \ £ fo 1 C<br>J2<br>WARNING<br>LABEL BARCODE<br>J403 C12<br>PIN 1<br>T501<br>L2<br>——-—— He<br>crD> 0 Co) [ a4<br>qde> o — 7) | AE<br>A<br>M ODEL LABEL J5 -PIN 1 INPUT J 5<br>P REFERRED EARTH<br>4<br>0.1<br>(2X)3.5<br>0.3 0.3<br>6<br>101. 94.6<br>**----- End of picture text -----**<br>


## Notes: 

1. OCP can not be adjusted on the fly. Default setting is for 250 W Forced Air. 

2. Unit should be turned off before trimpot adjustment. 

3. OCP does not vary linearly with the trimpot adjustment. It is either Full clockwise (250 W) or Full counter clockwise (155 W). 

4. Thermal Hot Spot Reference - Do not exceed indicated temperature limits to ensure operation is within the conponent thermal derating limits. Measure the component temperatures using K type thermocouples. 

|**Thermal Hot Spot Reference**||
|---|---|
|_Component_|_Temperature Limit_|
|L2|135 °C|
|T501|145 °C|
|Q501|120 °C|
|C12|95 °C|



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Lee Output Power Derating<br>Output Power Derating Output Power VS. Input Line<br>300<br>275<br>250 fT | | | | ft ff 250 ee<br>225<br>200 HOES<br>200<br>150 p | | ft | tN |) 175 ZEEEEREEEi<br>150<br>100<br>eee FORCED AIR we 125 SS FORCED AIR<br>50<br>NATURAL CONVECTION 100 NATURAL CONVECTION<br>0 Ff | fd] 75 rT<br>0 10 20 30 40 50 60 70 80 90 110 130 150 170 190 210 230 250 270<br>fe Ambient Temperature [°C] S|) SES AC Input Line [Vac]<br>Figure 1. Output Power vs. Ambient Temperature at Natural Convection  Figure 2. Output Power vs. Input Line at Natural Convection and Forced<br>and Forced Air Cooling [300 LFM]. Air Cooling [300 LFM].<br>Output Power [Watts] Output Power [Watts]<br>**----- End of picture text -----**<br>


## ~~Co~~ **Efficiency Curves** 

**CPS253‐M (12V) Efficiency Curve** 

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96%<br>95% ee ee ee ee<br>94% ee ee ee es<br>93% ee<br>92% re eeeeeeeeeeee<br>91% eee eee<br>90% — fy | | ||<br>89% fs | | |<br>88% 115 Vac<br>230 Vac<br>87% | ff,<br>86% ee ee ee ee ee<br>0 0.2 0.4 0.6 0.8 1<br>% of Rated Output Load<br>Figure 3. Typical Efficiency for 12 V Output<br>CPS258‐M (48V) Efficiency Curve<br>96%<br>95% ee es<br>94% Ct<br>93% ee eeeeee™ FE<br>92% ee<br>91% — fy | | ft<br>90% a A) Ae ee<br>89%<br>88% FA 115 Vac<br>230 Vac<br>87% —_/7+—_}—_ | iH<br>86% ee ee<br>0 0.2 0.4 0.6 0.8 1<br>% of Rated Output Load<br>Efficiency<br>Efficiency<br>**----- End of picture text -----**<br>


Figure 5. Typical Efficiency for 48 V Output 

**CPS255‐M (24V) Efficiency Curve** 

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96%<br>95% Ee ee<br>94% ee<br>93% ee ee<br>92% —ee|f ee ee ee ee<br>91% — Ff YA |<br>90% — fis | |<br>89% — JY |<br>88% 115 Vac<br>230 Vac<br>87% ff<br>86% | f/[ f|  f [ |<br>0 0.2 0.4 0.6 0.8 1<br>% of Rated Output Load<br>Figure 4. Typical Efficiency for 24 V Output<br>Natural Convection Estimated Service Life vs Component Temp<br>150<br>100<br>Estimated Life<br>_<br>50<br>0<br>110 100 90 80 70 60 50<br>C12 Temperature  [ °C]<br>Efficiency<br>Lifetime (KHrs)<br>**----- End of picture text -----**<br>


Figure 6. Estimated product useful life based on C12 (bulk capacitor) case temperature 

## **Ordering Information** 

|**Ordering Informationg Information Information**|**Ordering Informationg Information Information**|**Ordering Informationg Information Information**|**Ordering Informationg Information Information**|**Ordering Informationg Information Information**|**Ordering Informationg Information Information**|**Ordering Informationg Information Information**|**Ordering Informationg Information Information**|
|---|---|---|---|---|---|---|---|
|Model number|Output<br>voltage|Minimum<br>load|Max. Continuous<br>Load(Free Air)|Peak Load<br>(Free Air)1|Max. Continuous<br>Load(Forced Air)2|Regulation3|Ripple (p-p)4|
|CPS253-M|12 V|0 A|12.92 A|15.5 A|20.83 A|±2%|120 mV|
|CPS253-M1|12 V|0 A|12.92 A|15.5 A|20.83 A|± 2%|120 mV|
|CPS255-M|24 V|0 A|6.45 A|7.74 A|10.42 A|±2%|240 mV|
|CPS258-M|48 V|0 A|3.23 A|3.88 A|5.21 A|± 2%|480 mV|



1 Peak Load current not to exceed 30 seconds with maximum 10% duty cycle. 

2 Requires at least 300 LFM of airflow. 

3 At 25 °C including factory setpoint, Line voltage and Load current variations. 

4 Peak to peak ripple measured at the output terminals with 10µF tantalum capacitor in parallel with 0.1µF ceramic capacitor across the output & at 25 °C and output load≥ 6W. 

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CPS250-M Series DS   29Jul2016