Overview
The ACST310-8BTR, produced by STMicroelectronics, is a high-performance AC switch belonging to the ACS™/ACST power switch family. This device is built using Application Specific Discrete (A.S.D.) technology and is designed for use in home appliances and industrial systems. It can drive loads up to 3 A and features a Triac structure with a high voltage clamping device. This clamping device is capable of absorbing inductive turn-off energy and withstanding line transients as specified in the IEC 61000-4-5 standard. The component requires a low gate current (IGT max. 10 mA) for activation and exhibits high electrical noise immunity, complying with IEC standards such as IEC 61000-4-4 (fast transient burst test).
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Part Number | ACST310-8BTR | |
| Marketing Status | Active | |
| Package/Case | TO-252-3 (DPAK) | |
| On-state RMS current (IT(RMS)) | 3 | A |
| Non repetitive surge peak on-state current (ITSM) | 20 A (f = 50 Hz, tp = 20 ms), 21 A (f = 60 Hz, tp = 16.7 ms) | A |
| Triggering gate current max (IGT) | 10 mA (Q1, Q2, Q3) | mA |
| VDRM/VRRM | 800 V | V |
| Rising Ratio Of Off Voltage (V/µs) (min) (@ T J(max)) | 1000 | V/µs |
| Rate of decrease of commutating on-state current (A/ms) (min) (@ T J(max)) | 5 | A/ms |
| Operating Temperature (°C) (min/max) | -40 to 125 | °C |
| Junction to case thermal resistance (Rth(j-c)) | 3 °C/W | °C/W |
| Junction to ambient thermal resistance (Rth(j-a)) | 70 °C/W | °C/W |
Key Features
- AC switch with self overvoltage protection
- Microcontroller direct driven (low gate current max. 10 mA)
- Three quadrants (Q1, Q2, and Q3)
- UL94-V0 certified resin (flammability)
- ECOPACK®2 compliant component
- High immunity against fast transients (complying with IEC 61000-4-4 standard)
- No external overvoltage protection needed
- High off-state reliability device
- Interfaces directly with the microcontroller, reducing component count
Applications
- AC static switching in appliances and industrial control systems
- Driving low power highly inductive loads or resistive AC loads
- Motor control circuits, small home appliances, lighting, fan speed controllers, water valves, pumps
- Solid state relays, vacuum cleaners, heaters
Q & A
- What is the maximum on-state RMS current of the ACST310-8BTR?
The maximum on-state RMS current is 3 A.
- What is the maximum gate current required to activate the ACST310-8BTR?
The maximum gate current required is 10 mA.
- What type of package does the ACST310-8BTR come in?
The ACST310-8BTR comes in a TO-252-3 (DPAK) package.
- What is the operating temperature range of the ACST310-8BTR?
The operating temperature range is from -40°C to 125°C.
- Does the ACST310-8BTR require external overvoltage protection?
No, the ACST310-8BTR does not require external overvoltage protection due to its built-in self overvoltage protection.
- What standards does the ACST310-8BTR comply with for electrical noise immunity?
The ACST310-8BTR complies with IEC standards such as IEC 61000-4-4 (fast transient burst test).
- Can the ACST310-8BTR be driven directly by a microcontroller?
Yes, the ACST310-8BTR can be driven directly by a microcontroller due to its low gate current requirement.
- What types of loads can the ACST310-8BTR drive?
The ACST310-8BTR can drive highly inductive or resistive AC loads, such as motor control circuits, small home appliances, and lighting.
- Is the ACST310-8BTR certified for flammability?
Yes, the ACST310-8BTR is UL94-V0 certified for flammability.
- Is the ACST310-8BTR environmentally friendly?
Yes, the ACST310-8BTR is ECOPACK®2 compliant, making it an environmentally friendly component.
