ACST1035-8FP

## **ACST1035-8FP** 

## Overvoltage protected AC switch 

Datasheet - production data 

## **Description** 

This device offers a blocking voltage up to 800 V, high commutation and noise immunity, all required for inductive load control. 

The thermal management in application is improved thanks to its high maximum junction temperature (Tj = 150 °C). 

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


It enables applications to be compliant with IEC 61000-4-4 and IEC 61000-4-5. 

**Figure 1: Functional diagram** 

## **Features** 

- Triac with self overvoltage protection 

- High static immunity and dynamic commutation 

- 800 V VDRM/VRRM 

- High junction temperature: Tj = 150 °C 

- Complies with UL standards (File ref: E81734) 

- TO-220FPAB insulated package 2000 VRMS 

- ECOPACK[®] 2 and RoHs compliant component 

**Table 1: Device summary** 

## **Applications** 

- Motor control for home appliance: 

|**Order code**|**Package**|**VDRM/VRRM**|**IGT**|
|---|---|---|---|
|ACST1035-8FP|TO-220FPAB|800 V|35 mA|



- Universal drum motor of washing machine 

- Compressor of fridge or air conditioner 

- A/C compressor 

April 2017 

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This is information on a product in full production. 

_www.st.com_ 

**Characteristics** 

**ACST1035-8FP** 

## **1 Characteristics** 

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

|**Symbol**|**Parameter**|**Parameter**|**Parameter**|**Value**|**Unit**|
|---|---|---|---|---|---|
|IT(RMS)|RMS on-state current (full sine wave)||Tc= 108 °C|10|A|
|ITSM|Non repetitive surge<br>peak on-state current|tp=16.7 ms|Tjinitial = 25 °C|95|A|
|||tp= 20 ms||90||
|I2t|I2t value for fusing<br>(full cycle sine wave)|tp= 10 ms||54|A2s|
|VRRM/<br>VDRM|Repetitive peak off-state voltage||Tj= 150 °C|800|V|
|dl/dt|Critical rate of rise of<br>on-state current|IG= 2 x IGT,<br>tr ≤ 100 ns|f = 120 Hz, Tj= 150 ° C|100|A/µs|
|Vpp_(1)_|Non repetitivepeakpulse line voltage||Tjinitial = 25 °C|2|kV|
|(dl/dt)BO|Non repetitive critical current rate of<br>rise at breakover||Tjinitial = 25 °C|150|A/µs|
|IGM|Peakgate current|tp= 20 µs|Tj= 150 °C|1|A|
|PGM|Peakgatepower|||10|V|
|PG(AV)|Averagegatepower dissipation||Tj= 150 °C|0.1|W|
|Tstg|Storagejunction temperature range|||-40 to +150|°C|
|Tj|Maximum operating junction temperature range|||-40 to +150|°C|
|TL|Maximum lead temperature for solderingduring10 s|||260|°C|
|Vins|Insulation RMS voltage (60 seconds)|||2000|V|



## **Notes:** 

> (1)According to test described by IEC 61000-4-5 standard and test _Fig 19_ . 

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**Characteristics** 

**Table 3: Electrical characteristics** 

|**Symbol**|**Test conditions**||**Quadrant**||**Value**|**Unit**|
|---|---|---|---|---|---|---|
|IGT|VD= 12 V, RL= 33 Ω|Tj= 25 °C|I - II - III|Max.|35|mA|
|||||Min.|1.75||
|VGT||||Max.|1|V|
|VGD|VD= VDRM, RL= 3.3 kΩ|Tj= 150 °C|I - II - III|Min.|0.2|V|
|IH_(1)_|IT= 500 mA, gate open|Tj= 25 °C||Max.|30|mA|
|IL|IG= 1.2 x IGT|Tj= 25 °C|I - II - III|Max.|40|mA|
|dV/dt|VD= 67 % VDRM/VRRM, gate open|Tj= 125 °C||Min.|4000|V/µs|
|||Tj= 150 °C||Min.|2000||
|(dl/dt)c|Without snubber|Tj= 125 °C||Min.|10|A/ms|
|||Tj= 150 °C||Min.|5||
|VCL|ICL= 01 mA, tp= 1 ms|||Min.|850|V|



## **Notes:** 

(1)For both polarities of OUT pin referenced to COM pin 

**Table 4: Static electrical characteristics** 

|**Symbol**|**Test conditions**|||**Value**|**Unit**|
|---|---|---|---|---|---|
|VTM_(1)_|ITM= 14.1 A, tp= 380µs|Tj= 25 °C|Max.|1.5|V|
|Vto|Threshold voltage|Tj= 150 °C|Max.|0.9|V|
|RD|Dynamic resistance|Tj= 150 °C|Max.|40|mΩ|
|IDRMIRRM|VD= VDRM, VR= VRRM|Tj= 25 °C|Max.|1|µA|
|||Tj= 125 °C||500||
|||Tj= 150 °C||1.2|mA|



## **Notes:** 

(1)For both polarities of OUT pin referenced to COM pin 

**Table 5: Thermal resistance** 

|**Symbol**|**Parameter**|**Value**|**Unit**|
|---|---|---|---|
|Rth(j-c)|Junction to case (AC)|3.5|°C/W|
|Rth(j-a)|Junction to ambient (AC)|60||



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**Characteristics** 

**ACST1035-8FP** 

## **1.1 Characteristics (curves)** 

**Figure 2: Maximum power dissipation versus Figure 3: On-state RMS current versus temperature on-state RMS current under tab. (full cycle)** 

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P(W)<br>12<br>11 α = 180 °<br>10<br>9<br>8<br>7<br>6<br>5<br>4<br>3 180 °<br>2 α<br>1 IT(RMS)(A) α<br>0<br>0 1 2 3 4 5 6 7 8 9 10<br>**----- End of picture text -----**<br>


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Figure 4: On state RMS current versus ambient<br>Figure 5: Relative variation of thermal impedance<br>temperature (free air convection)<br>versus pulse duration<br>K = [Z th /Rth ]<br>1.0E+00<br>3.0 IT(RMS)(A) Zth(j-c)<br>α = 180 ° Zth(j-a)<br>2.5<br>2.0<br>1.5 1.0E-01<br>1.0<br>0.5<br>Ta(°C)<br>0.0<br>0 25 50 75 100 125 150 tp(s)<br>1.0E-02<br>1.0E-03 1.0E-02 1.0E-01 1.0E+00 1.0E+01 1.0E+02 1.0E+03<br>Figure 6: On-state characteristics   Figure 7: Surge peak on-state current versus<br>(maximum values)  number of cycles<br>ITSM(A)<br>100<br>90<br>80 t = 20ms<br>70 TNonj -initial =repetitive25 °C One cycle<br>60<br>50<br>Repetitive<br>40 TC = 108°C<br>30<br>20<br>10<br>Number of cycles<br>0<br>1 10 100 1000<br>**----- End of picture text -----**<br>


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**Characteristics** 

**Figure 8: Non repetitive surge peak on-state current for a sinusoidal pulse with width tp < 10 ms** 

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ITSM(A), I t2 (A s)2<br>1000<br>Tj initial = 25°C<br>dI/dt limitation: 100 A/µs ITSM<br>100<br>10<br>tp( ms)<br>1<br>0.01 0.10 1.00 10.00<br>**----- End of picture text -----**<br>


**Figure 9: Relative variation of gate trigger current and gate trigger voltage versus junction temperature (typical values)** 

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**Figure 10: Relative variation of holding current and latching current versus junction temperature (typical values)** 

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**Figure 11: Relative variation of critical rate of decrease of main current (dI/dt)c versus reapplied (dV/dt)c** 

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(dl/dt)c[(dV/dt)c] / specified (dl/dt)c<br>3<br>Tj = 150 °C<br>2<br>1<br>(dV/dt)c (V/µs)<br>0<br>0.1 1.0 10.0 100.0<br>**----- End of picture text -----**<br>


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Figure 12: Relative variation of critical rate of<br>Figure 13: Relative variation of static dV/dt<br>decrease of main current versus junction<br>immunity versus junction temperature<br>temperature (typical values)<br>10 (dI/dt)C [T j] / (dI/dt)c [T j = 150 °C] 5 dV/dt[Tj] / dV/dt[Tj = 150 °C] VD = VR = 536 V<br>9<br>4<br>8<br>7<br>6 3 (dV/dt) > 5KV/µs<br>5<br>4 2<br>3<br>2 1<br>1<br>0 Tj(°C) Tj (°C)<br>0<br>25 50 75 100 125 150<br>25 50 75 100 125 150<br>**----- End of picture text -----**<br>


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**Characteristics** 

**ACST1035-8FP** 

**Figure 14: Relative variation of leakage current versus junction temperature for different values of blocking voltage (typical values)** 

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IDRM / IRRM[Tj;VDRM / VRRM] / IDRM / IRRM<br>1.0E+00<br>VDRM=VRRM = 800 V<br>1.0E-01 VDRM=VRRM = 600 V<br>1.0E-02 VDRM=VRRM = 400 V<br>1.0E-03<br>Tj ( ° C)<br>1.0E-04<br>25 50 75 100 125 150<br>**----- End of picture text -----**<br>


**Figure 15: Relative variation of the maximum clamping voltage versus junction temperature (minimum values)** 

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1.10 VCL[Tj] / VCL[Tj = 25 °C]<br>1.05<br>1.00<br>0.95<br>0.90<br>Tj(°C)<br>0.85<br>-50 -25 0 25 50 75 100 125 150<br>**----- End of picture text -----**<br>


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**Application** information 

## **2 Application information** 

## **2.1 Typical application description** 

The ACST1035-8FP 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 ACST1035-8FP 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. 

**Figure 16: AC induction motor control - typical diagram** 

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AC motor<br>AC induction<br>motor<br>AC mains<br>Phase shift capacitor +<br>protective air inductance<br>ACST ACST Selection of the<br>rotor direction<br>Rg Rg<br>VCC MCU<br>**----- End of picture text -----**<br>


**Figure 17: Universal drum motor control – typical diagram** 

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The ACST1035-8FP device is also very effective in controlling resistive loads. 

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**ACST1035-8FP** 

**Application** information 

**Figure 18: Resistive load control – typical diagram** 

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

In comparison with standard Triac, which need additional protection components against surge voltage, this device is self-protected against overvoltage, specified by the new parameter VCL. Its switch can safely withstand AC line transient voltages either by clamping the low energy spikes, such as the inductive spikes at switchoff, 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 19 represents the ACST1035-8FP 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 limits 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 ACST1035-8FP folds back safely to the on state as shown in Figure 20. The ACST1035-8FP recovers its blocking voltage capability after the surge and the next zero crossing current. Such a non repetitive test can be done at least 10 times on each AC line voltage polarity. 

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**Application** information 

**Figure 19: Overvoltage ruggedness test circuit for resistive and inductive loads for IEC 61000-4-5 standard)** 

R = 11 Ω, L = 3 μH, VPP = 2 kV, Rg = 62 Ω 

**Figure 20: Typical voltage and current waveforms across the ACST1035-8FP during IEC 61000-4-5 standard test** 

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Vpeak<br>l<br>1.2/50 µs voltage surge<br>0<br>V Ipeak= 180 A<br>8/20 µs current surge<br>I<br>Ly 0<br>(dl/dt)BO = 150 A/µs<br>**----- End of picture text -----**<br>


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**ACST1035-8FP** 

**Package** information 

## **3 Package information** 

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. 

- Lead-free packages 

- Recommended torque: 0.4 to 0.6 N·m 

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

**Figure 21: TO-220FPAB package outline** 

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**Package** information 

**Table 6: TO-220FPAB package mechanical data** 

|**Ref.**|**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|
|---|---|---|---|---|
||**Millimeters**||**Inches**||
||**Min.**|**Max.**|**Min.**|**Max.**|
|A|4.40|4.60|0.1739|0.1818|
|B|2.5|2.7|0.0988|0.1067|
|D|2.50|2.75|0.0988|0.1087|
|E|0.45|0.70|0.0178|0.0277|
|F|0.75|1.0|0.0296|0.0395|
|F1|1.15|1.70|0.0455|0.0672|
|F2|1.15|1.70|0.0455|0.0672|
|G|4.95|5.20|0.1957|0.2055|
|G1|2.40|2.70|0.0949|0.1067|
|H|10.00|10.40|0.3953|0.4111|
|L2|16.00 typ.||0.6324 typ.||
|L3|28.60|30.60|1.1304|1.2095|
|L4|9.80|10.6|0.3874|0.4190|
|L5|2.90|3.60|0.1146|0.1423|
|L6|15.90|16.40|0.6285|0.6482|
|L7|9.00|9.30|0.3557|0.3676|
|Dia|3.0|3.20|0.1186|0.1265|



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**Ordering** information 

**ACST1035-8FP** 

## **4 Ordering information** 

**Figure 22: Ordering information scheme** 

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ACS T 10 35 - 8 FP<br>Series<br>AC swtich<br>Topology<br>T = Triac<br>On-state rms current<br>10 = 10 A<br>Sensitivity<br>35 = 35 mA<br>Voltage<br>8 = 800 V<br>Package<br>FP = TO-220FPAB<br>**----- End of picture text -----**<br>


**Table 7: Ordering information** 

|**Order code**|**Marking**|**Package**|**Weight**|**Base qty.**|**Delivery mode**|
|---|---|---|---|---|---|
|ACST1035-8FP|ACST1035-8FP|TO-220FPAB|2.0g|50|Tube|



## **5 Revision history** 

**Table 8: Document revision history** 

|**Date**|**Revision**|**Changes**|
|---|---|---|
|21-Feb-2014|1|First issue.|
|14-Apr-2017|3|Updated_Section "Features"_and_Table 2: "Absolute ratings_<br>_(limiting values)"_.<br>Minor text changes to improve readability.|



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