Overview
The ACS108-6SA, 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 operates at a voltage of 600 V. It features an overvoltage crowbar structure to absorb inductive turn-off energy and a gate level shifter driver to separate the digital controller from the main switch. The ACS108-6SA is triggered by a negative gate current and is known for its high noise immunity and ability to meet IEC 61000-4-5 surge standards without the need for external protection snubbers or varistors.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| IT(RMS) | 0.8 A | A |
| VDRM, VRRM | 600 V | V |
| IGT | 10 mA | mA |
| ITSM (Non repetitive surge peak on-state current) | 13 A (tp = 20 ms), 13.7 A (tp = 16.7 ms) | A |
| I2t (for fuse selection) | 1.1 A²s (tp = 10 ms) | A²s |
| dI/dt (Critical rate of rise on-state current) | 100 A/μs | A/μs |
| VPP (Non repetitive line peak pulse voltage) | 2 kV | V |
| PG(AV) (Average gate power dissipation) | 0.1 W (Tj = 125 °C) | W |
| VGM (Peak positive gate voltage) | 10 V (Tj = 125 °C) | V |
| IGM (Peak gate current) | 1 A (tp = 20 μs, Tj = 125 °C) | A |
| Tstg (Storage temperature range) | -40 to +150 °C | °C |
| Tj (Operating junction temperature range) | -30 to +125 °C | °C |
Key Features
- Overvoltage crowbar technology to absorb inductive turn-off energy.
- High noise immunity against static dV/dt and IEC 61000-4-4 burst.
- No need for external protection snubber or varistor.
- Reduces component count by up to 80% and interfaces directly with the micro-controller.
- Common package tab connection supports connection of several alternating current switches on the same cooling pad.
- VCL provides headroom before clamping then crowbar action.
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.
Q & A
- What is the maximum on-state rms current of the ACS108-6SA?
The maximum on-state rms current is 0.8 A.
- What is the maximum voltage rating of the ACS108-6SA?
The maximum voltage rating is 600 V.
- How is the ACS108-6SA triggered?
The ACS108-6SA is triggered by a negative gate current flowing out of the gate pin.
- What is the purpose of the overvoltage crowbar technology in the ACS108-6SA?
The overvoltage crowbar technology absorbs inductive turn-off energy and protects against surge voltages.
- Does the ACS108-6SA require external protection components?
No, it does not require external protection snubbers or varistors.
- What are the typical applications of the ACS108-6SA?
Typical applications include alternating current on/off static switching in appliances and industrial control systems, and driving low power high inductive or resistive loads.
- What is the storage temperature range of the ACS108-6SA?
The storage temperature range is -40 to +150 °C.
- What is the operating junction temperature range of the ACS108-6SA?
The operating junction temperature range is -30 to +125 °C.
- How does the ACS108-6SA handle high inductive load switch-off?
The ACS108-6SA clamps the overvoltage created during the switch-off of high inductive loads, dissipating the energy stored in the load inductance.
- What is the significance of VCL in the ACS108-6SA?
VCL provides headroom before clamping and then crowbar action, ensuring safe operation during overvoltage conditions.
