ACST1010-7FP

## **ACST10** 

## Overvoltage protected AC switch 

## **Datasheet** - **production data** 

## **Description** 

**==> picture [199 x 92] intentionally omitted <==**

**----- Start of picture text -----**<br>
OUT<br>G G<br>OUT OUT<br>COM COM<br>TO-220AB TO-220FPAB<br>**----- End of picture text -----**<br>


## **Features** 

- Triac with overvoltage crowbar protection 

- Low IGT (< 10 mA) or high immunity (IGT < 35 mA) version 

- High noise immunity: static dV/dt > 2000 V/µs 

- Provides UL certified insulation rated at 2000 VRMS 

## **Benefits** 

- Enables equipment to meet IEC 61000-4-5 

- High off-state reliability with planar technology 

- Need no external overvoltage protection 

The ACST10 series belongs to the ACS™/ACST power switch family built with A.S.D. (application specific discrete) technology. This high performance device is suited to home appliances or industrial systems, and drives loads up to 10 A. 

This ACST10 switch has a Triac structure and a high voltage clamping device to absorb the inductive turn-off energy and withstand transients such as those described in the IEC 61000-4-5 standard. The ACST1010-7 needs a low gate current to be activated (IGT < 10 mA) and still shows a high noise immunity complying with IEC 61000-4-4 standard. The ACST1035-7 offers a high static dV/dt immunity of 2 kV/µs minimum. 

## **Figure 1. Functional diagram** 

**==> picture [70 x 109] intentionally omitted <==**

**----- Start of picture text -----**<br>
OUT<br>G<br>COM<br>**----- End of picture text -----**<br>


- Reduces the power passive component count 

- High immunity against fast transients described in IEC 61000-4-4 standards 

## **Applications** 

- AC mains static switching in appliance and industrial control systems 

**Table 1. Device summary** 

|**Symbol**|**Value**|**Unit**|
|---|---|---|
|IT(RMS)|10|A|
|VDRM/VRRM|700|V|
|IGT|10 or 35|mA|



- Drive of medium power AC loads such as: 

   - Universal motor of washing machine drum 

   - Compressor for fridge or air conditioner 

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This is information on a product in full production. 

_www.st.com_ 

**Characteristics** 

**ACST10** 

## **1 Characteristics** 

**Table 2. Absolute ratings (limiting values)** 

|**Symbol**|**Parameter**|||**Value**|**Unit**|
|---|---|---|---|---|---|
|IT(RMS)|On-state RMS current (full sine wave)|TO-220AB|Tc= 105 °C|10|A|
|||TO-220FPAB|Tc= 84 °C|||
|ITSM|Non repetitive surge peak on-state current<br>Tjinitial = 25 °C, (full cycle sine wave)|F = 60 Hz|tp= 16.7 ms|105|A|
|||F = 50 Hz|tp= 20 ms|100|A|
|I2t|I2t for fuse selection||tp= 10 ms|66|A2s|
|dI/dt|Critical rate of rise on-state current<br>IG= 2 x IGT,(tr 100 ns)|F = 120 Hz|Tj= 125 °C|100|A/µs|
|VPP|Non repetitive line peak pulse voltage(1)||Tj= 25 °C|2|kV|
|PG(AV)|Average gate power dissipation||Tj= 125 °C|0.1|W|
|PGM|Peak gate power dissipation (tp= 20 µs)||Tj= 125 °C|10|W|
|IGM|Peak gate current (tp= 20 µs)||Tj= 125 °C|1.6|A|
|Tstg|Storage temperature range|||-40 to +150|°C|
|Tj|Operating junction temperature range|||-40 to +125|°C|
|Tl|Maximum lead solder temperature during 10 ms (at 3 mm from case)|||260|°C|
|VINS|Insulation RMS voltage (60 seconds)|TO-220FPAB||2000|V|



1. According to test described in IEC 61000-4-5 standard and _Figure 17_ 

**Table 3. Electrical characteristics** 

|**Symbol**|**Test conditions**|**Quadrant**|**Tj**||**Value**|**Value**|**Unit**|
|---|---|---|---|---|---|---|---|
||||||**ACST1010-7**|**ACST1035-7**||
|IGT<br>(1)|VOUT = 12 V, RL = 33|I - II - III|25 °C|MAX.|10|35|mA|
|VGT|VOUT = 12 V, RL = 33|I - II - III|25 °C|MAX.|1.0||V|
|VGD|VOUT = VDRM,RL = 3.3|I - II - III|125 °C|MIN.|0.2||V|
|IH<br>(2)|IOUT = 500 mA||25 °C|MAX.|30|50|mA|
|IL|IG = 1.2 x IGT|I - II - III|25 °C|MAX.|50|70|mA|
|dV/dt(2)|VOUT = 67 % VDRM, gate open||125 °C|MIN.|200|2000|V/µs|
|(dI/dt)c(2)|(dV/dt)c = 15 V/µs||125 °C|MIN.|4.4||A/ms|
||Without snubber|||||12||
|VCL|ICL = 0.1 mA, tp= 1 ms||25 °C|MIN.|850||V|



1. Minimum IGT is guaranteed at 5% of IGT max 

2. For both polarities of OUT pin referenced to COM pin 

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**ACST10** 

**Characteristics** 

**Table 4. Static characteristics** 

||**Table 4. Static characteristics**|**Table 4. Static characteristics**|**Table 4. Static characteristics**|||
|---|---|---|---|---|---|
|**Symbol**|**Test conditions**|||**Value**|**Unit**|
|VTM<br>(1)|IOUT = 14.1 A, tp= 500 µs|Tj= 25 °C|Max.|1.5|V|
|VT0<br>(1)|Threshold voltage|Tj= 125 °C|Max.|0.9|V|
|Rd<br>(1)|Dynamic resistance|Tj= 125 °C|Max.|35|m|
|IDRM<br>IRRM|VOUT= VDRM/ VRRM|Tj= 25 °C|Max.|20|µA|
|||Tj= 125 °C|Max.|1.2|mA|



1. For both polarities of OUT pin referenced to COM pin 

**Table 5. Thermal characteristics** 

|**Symbol**|**Parameter**||**Value**|**Unit**|
|---|---|---|---|---|
|Rth(j-c)|Junction to case (AC)|TO-220AB|1.7|°C/W|
|||TO-220FPAB|3.5|°C/W|
|Rth(j-a)|Junction to ambient|TO-220AB<br>TO-220FPAB|60|°C/W|



**Figure 2. Maximum power dissipation vs. RMS on-state current (full cycle)** 

**Figure 3. On-state RMS current vs. case temperature (full cycle)** 

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**Characteristics** 

**ACST10** 

**Figure 4. On-state RMS current vs. ambient temperature (free air convection full cycle)** 

**Figure 6. On-state characteristics (maximal values)** 

**Figure 8. Non repetitive surge peak on-state current for a sinusoidal pulse** 

**Figure 5. Relative variation of thermal impedance vs. pulse duration** 

**Figure 7. Surge peak on-state current vs. number of cycles** 

**Figure 9. Relative variation of gate triggering current (IGT) and gate triggering voltage (VGT) vs. junction temperature** 

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**Characteristics** 

**Figure 10. Relative variation of holding (IH) and Figure 11. Relative variation of critical rate of latching current (IL) vs. junction temperature decrease of main current (di/dt)c vs. (dV/dt)c (typical values)** 

**Figure 12. Relative variation of critical rate of Figure 13. Relative variation of static dV/dt vs. decrease of main current (di/dt)c vs. junction junction temperature temperature** 

**Figure 14. Relative variation of maximum clamping voltage VCL vs. junction temperature (minimum values)** 

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**ACST10** 

**Application information** 

## **2 Application information** 

## **2.1 Typical application description** 

The ACST10 device has been designed to control medium power load, such as AC motors in home appliances. Thanks to its thermal and turn off commutation performances, the ACST10 switch is able to drive an inductive load up to 10 A with no turn off additional snubber. It also provides high thermal performances in static and transient modes such as the compressor inrush current or high torque operating conditions of an AC motor. Thanks to its low gate triggering current level, the ACST1010-7 can be driven directly by an MCU through a simple gate resistor as shown _Figure 15_ . 

## **Figure 15. Compressor control – typical diagram** 

**==> picture [388 x 257] intentionally omitted <==**

**----- Start of picture text -----**<br>
Compressor Compressor<br>AC Mains<br>AC Mains<br>PTC<br>PTC<br>Electronic<br>ACST<br>starter<br>1 logical circuitry ACST<br>Start<br>switch<br>ACST<br>Run<br>switch<br>Electronic<br>ACST thermostat<br>Rg<br>Rg Rg<br>Gate Gate<br>Power supply Driver Power supply Driver<br>Compressor with integrated e-starter Compressor with external electronic drive<br>2<br>3<br>**----- End of picture text -----**<br>


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**Application information** 

## **Figure 16. Universal drum motor control – typical diagram** 

**==> picture [246 x 273] intentionally omitted <==**

**----- Start of picture text -----**<br>
Universal motor<br>Stator Rotor<br>12V<br>AC Mains<br>Motor direction<br>setting<br>MCU<br>Speed motor ACST Rg<br>regulation<br>Vcc<br>MCU<br>**----- End of picture text -----**<br>


## **2.2 AC line transient voltage ruggedness** 

In comparison with standard Triacs, which needs additional protection components against, the ACST10 is self-protected against overvoltage, specified by the new parameter VCL. The ACST10 switch can safely withstand AC line transient voltages either by clamping the low energy spikes, such as inductive spikes at switch off, or by switching to the on state (for less than 10 ms) to dissipate higher energy shocks through the load. This safety feature works even with high turn-on current ramp up. 

The test circuit of _Figure 17_ represents the ACST10 application, and is used to stress the ACST switch according to the IEC 61000-4-5 standard conditions. With the additional effect of the load which is limiting the current, the ACST switch withstands the voltage spikes up to 2 kV on top of the peak line voltage. The protection is based on an overvoltage crowbar technology. The ACST10 folds back safely to the on state as shown in _Figure 18_ . The ACST10 recovers its blocking voltage capability after the surge and the next zero current crossing. Such a non repetitive test can be done at least 10 times on each AC line voltage polarity. 

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**ACST10** 

**Application information** 

**Figure 17. Overvoltage ruggedness test circuit for resistive and inductive loads for IEC 61000-4-5 standards** 

**==> picture [369 x 174] intentionally omitted <==**

**----- Start of picture text -----**<br>
R = 8 Ω , L = 4 µH, VPP = 2 kV<br>Surge generator<br>2kV surge<br>Rgene<br>Model of the load<br>Filtering unit<br>R L<br>ACST10<br>AC Mains i i TAY<br>Rg<br>**----- End of picture text -----**<br>


**Figure 18. Typical current and voltage waveforms across the ACST10 during IEC 61000-4-5 standard test** 

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**Package information** 

## **3 Package information** 

- Epoxy meets UL94, V0 

- Recommended torque: 0.4 to 0.6 N·m 

In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK[®] packages, depending on their level of environmental compliance. ECOPACK[®] specifications, grade definitions and product status are available at: www.st.com. ECOPACK[®] is an ST trademark. 

## **3.1 TO-220AB package information** 

**Figure 19. TO-220AB package outline** 

1. Resin gate position accepted in one of the two positions or in the symmetrical opposites. 

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**Package information** 

**Table 6. TO-220AB package mechanical data** 

||**Table 6. TO-220ABpackage mechanical data**|**Table 6. TO-220ABpackage mechanical data**|**Table 6. TO-220ABpackage mechanical data**|**Table 6. TO-220ABpackage mechanical data**|**Table 6. TO-220ABpackage mechanical data**|**Table 6. TO-220ABpackage mechanical data**|
|---|---|---|---|---|---|---|
|**Ref.**|**Dimensions**||||||
||**Millimeters**|||**Inches(1)**|||
||**Typ.**|**Min.**|**Max.**|**Typ.**|**Min.**|**Max.**|
|A||4.40|4.60||0.1732|0.1811|
|b||0.61|0.88||0.0240|0.0346|
|b1||1.14|1.70||0.0449|0.0669|
|c||0.48|0.70||0.0189|0.0276|
|D||15.25|15.75||0.6004|0.6201|
|D1|1.27|||0.0500|||
|E||10|10.40||0.3937|0.4094|
|e||2.40|2.70||0.0945|0.1063|
|e1||4.95|5.15||0.1949|0.2028|
|F||1.23|1.32||0.0484|0.0520|
|H1||6.20|6.60||0.2441|0.2598|
|J1||2.40|2.72||0.0945|0.1071|
|L||13|14||0.5118|0.5512|
|L1||3.50|3.93||0.1378|0.1547|
|L20|16.40|||0.6457|||
|L30|28.90|||1.1378|||
|Diam.P||3.75|3.85||0.1476|0.1516|
|Q||2.65|2.95||0.1043|0.1161|



1. Values in inches are converted from mm and rounded to 4 decimal digits. 

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**ACST10** 

**Package information** 

## **3.2 TO-220FPAB package information** 

**==> picture [190 x 11] intentionally omitted <==**

**----- Start of picture text -----**<br>
Figure 20. TO-220FPAB package outline<br>**----- End of picture text -----**<br>


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**ACST10** 

**Package information** 

**Table 7. TO-220FPAB package mechanical data** 

||**Table 7. TO-220FPABpackage mechanical data**|**Table 7. TO-220FPABpackage mechanical data**|**Table 7. TO-220FPABpackage mechanical data**|**Table 7. TO-220FPABpackage mechanical data**|**Table 7. TO-220FPABpackage mechanical data**|**Table 7. TO-220FPABpackage mechanical data**|
|---|---|---|---|---|---|---|
|**Ref.**|**Dimensions**||||||
||**Millimeters**|||**Inches(1)**|||
||**Typ.**|**Min.**|**Max.**|**Typ.**|**Min.**|**Max.**|
|A||4.4|4.6||0.1732|0.1811|
|B||2.5|2.7||0.0984|0.1063|
|D||2.5|2.75||0.0984|0.1083|
|E||0.45|0.70||0.0177|0.0276|
|F||0.75|1||0.0295|0.0394|
|F1||1.15|1.70||0.0453|0.0669|
|F2||1.15|1.70||0.0453|0.0669|
|G||4.95|5.2||0.1949|0.2047|
|G1||2.4|2.7||0.0945|0.1063|
|H||10|10.40||0.3937|0.4094|
|L2|16|||0.6299|||
|L3||28.6|30.6||1.1260|1.2047|
|L4||9.8|10.6||0.3858|0.4173|
|L5||2.9|3.6||0.1142|0.1417|
|L6||15.9|16.4||0.6260|0.6457|
|L7||9|9.3||0.3543|0.3661|
|Dia.||3|3.2||0.1181|0.1260|



1. Values in inches are converted from mm and rounded to 4 decimal digits. 

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**Ordering information** 

## **4 Ordering information** 

## **Figure 21. Ordering information scheme** 

**Table 8. Ordering information** 

|**Order code**|**Marking**|**Package**|**Weight**|**Base qty**|**Packing mode**|
|---|---|---|---|---|---|
|ACST1010-7T|ACST10107|TO-220AB|2.3 g|50|Tube|
|ACST1010-7FP||TO-220FPAB|2.3 g|50|Tube|
|ACST1035-7T|ACST10357|TO-220AB|2.3 g|50|Tube|
|ACST1035-7FP||TO-220FPAB|2.3 g|50|Tube|



## **5 Revision history** 

**Table 9. Document revision history** 

|**Date**|**Revision**|**Changes**|
|---|---|---|
|02-Dec-2008|1|First issue|
|13-Apr-2009|2|Updated ECOPACK statement. Reformatted for consistency with<br>other datasheets in this product class.|
|01-Jul-2010|3|Updated order code in_Table 3_.|
|19-Sep-2016|4|Updated Features in cover page and_Table 2._<br>Updated_Figure 8_,_Figure 11_,_Figure 18_,_Figure 14_and_Figure 10_.<br>Updated_Section 2.2_.<br>Updated_Chapter 3: Package information_.|



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**ACST10** 

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