Overview
The ACST6-7SG, manufactured by STMicroelectronics, is a high-performance AC power switch belonging to the ACST6 family. This device is built around the ASD (Application Specific Devices) technology and is designed for use in home appliances and industrial systems. It features a triac structure with a high voltage clamping device, which absorbs inductive turn-off energy and withstands line transients as per IEC61000-4-5 standards. The ACST6-7SG is particularly suited for driving medium power induction motors up to 6A and can operate in ON/OFF full cycle or phase angle control mode without the need for an external overvoltage protection or a turn-off aid snubber circuit.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Triac Type | - | Logic - Sensitive Gate | - |
| Voltage - Off State | VDRM | 700V | - |
| Current - On State (It (RMS)) (Max) | IT(RMS) | 6A | - |
| Voltage - Gate Trigger (Vgt) (Max) | VGT | 1.5V | - |
| Current - Gate Trigger (Igt) (Max) | IGT | 10mA | - |
| Current - Hold (Ih) (Max) | IH | 25mA | - |
| Current - Non Rep. Surge 50, 60Hz (Itsm) | ITSM | 45A, 50A | - |
| Operating Temperature | TJ | -30°C ~ 125°C | - |
| Package / Case | - | TO-263-3, D2Pak (2 Leads + Tab), TO-263AB | - |
| Mounting Type | - | Surface Mount | - |
Key Features
- No external overvoltage protection required.
- Direct interface with the microcontroller, allowing for low voltage controller drive through a resistor.
- Reduces the power component count due to its integrated design.
- Able to drive an inductive load up to 6A without a turn-off aid snubber circuit.
- High voltage clamping device to absorb inductive turn-off energy and withstand line transients as per IEC61000-4-5 standards.
- Operates in ON/OFF full cycle or phase angle control mode.
- Safely withstands AC line transient voltages by clamping low energy spikes or breaking over under high energy shocks.
Applications
The ACST6-7SG is especially designed to drive medium power induction motors in various applications, including:
- Refrigerators
- Dishwashers
- Tumble dryers
- Other home appliances and industrial systems requiring AC power switching.
Q & A
- What is the maximum on-state current of the ACST6-7SG?
The maximum on-state current (IT(RMS)) of the ACST6-7SG is 6A.
- What is the voltage rating of the ACST6-7SG?
The ACST6-7SG has a voltage rating of 700V off-state.
- How is the ACST6-7SG triggered?
The ACST6-7SG is triggered by a negative gate current flowing out of the gate pin G and can be directly driven by a microcontroller through a resistor.
- What are the operating temperature ranges for the ACST6-7SG?
The operating temperature range for the ACST6-7SG is -30°C to 125°C (TJ)).
- Does the ACST6-7SG require an external overvoltage protection?
No, the ACST6-7SG does not require external overvoltage protection due to its integrated high voltage clamping device).
- What types of loads can the ACST6-7SG drive?
The ACST6-7SG can drive medium power induction motors up to 6A without the need for a turn-off aid snubber circuit).
- What are the package options for the ACST6-7SG?
The ACST6-7SG is available in TO-263-3, D2Pak (2 Leads + Tab), and TO-263AB packages).
- How does the ACST6-7SG handle AC line transient voltages?
The ACST6-7SG safely withstands AC line transient voltages by clamping low energy spikes or breaking over under high energy shocks as per IEC61000-4-5 standards).
- What is the maximum gate triggering voltage for the ACST6-7SG?
The maximum gate triggering voltage (VGT) for the ACST6-7SG is 1.5V).
- What is the holding current for the ACST6-7SG?
The holding current (IH) for the ACST6-7SG is 25mA).
