Overview
The ACS108-8SN, produced by STMicroelectronics, is a high-performance AC switch built with A.S.D.® technology. This device is designed to control loads up to 0.8 A and features an overvoltage crowbar structure to absorb inductive turn-off energy. It includes a gate level shifter driver to separate the digital controller from the main switch, enhancing its reliability and efficiency. The ACS108-8SN is particularly useful in applications requiring high noise immunity and surge protection, making it an ideal choice for various industrial and appliance control systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| On-state rms current (IT(RMS)) | 0.8 A | A |
| Non repetitive surge peak on-state current (ITSM) | 13 A (tp = 20 ms), 13.7 A (tp = 16.7 ms) | A |
| VDRM, VRRM | 800 V | V |
| IGT (Gate trigger current) | 10 mA | mA |
| VGM (Peak positive gate voltage) | 10 V | V |
| IGM (Peak gate current) | 1 A | A |
| Tstg (Storage temperature range) | -40 to +150 °C | °C |
| Tj (Operating junction temperature range) | -30 to +125 °C | °C |
| VCL (Clamping voltage) | 850 V | V |
Key Features
- Overvoltage crowbar technology for surge protection, meeting IEC 61000-4-5 standards.
- High noise immunity against static dV/dt and IEC 61000-4-4 burst.
- No external protection snubber or varistor required.
- Reduces component count by up to 80% and interfaces directly with microcontrollers.
- Common package tab connection supports connection of several AC switches on the same cooling pad.
- Triggered by a negative gate current flowing out of the gate pin.
Applications
- Alternating current on/off static switching in appliances and industrial control systems.
- Driving low power high inductive or resistive loads such as relays, valves, solenoids, dispensers, pumps, fans, low power motors, door locks, and air flow dumpers.
- Lamp control and other similar applications.
Q & A
- What is the maximum on-state rms current of the ACS108-8SN?
The maximum on-state rms current is 0.8 A.
- What is the non-repetitive surge peak on-state current of the ACS108-8SN?
The non-repetitive surge peak on-state current is 13 A for a pulse duration of 20 ms and 13.7 A for a pulse duration of 16.7 ms.
- What is the voltage rating (VDRM, VRRM) of the ACS108-8SN?
The voltage rating is 800 V.
- How is the ACS108-8SN triggered?
The ACS108-8SN is triggered by a negative gate current flowing out of the gate pin.
- Does the ACS108-8SN require external protection components?
No, the ACS108-8SN does not require external protection snubbers or varistors due to its built-in overvoltage crowbar technology.
- What are the storage and operating temperature ranges for the ACS108-8SN?
The storage temperature range is -40 to +150 °C, and the operating junction temperature range is -30 to +125 °C.
- What is the clamping voltage (VCL) of the ACS108-8SN?
The clamping voltage is 850 V.
- What standards does the ACS108-8SN meet for surge protection?
The ACS108-8SN meets the IEC 61000-4-5 standards for surge protection.
- Can the ACS108-8SN be used in high inductive load applications?
- What package type is the ACS108-8SN available in?
The ACS108-8SN is available in the SOT-223 package.
