Based on a small SO-8W package
Sink and source up to 4A of output current

STMicroelectronics (ST) announced on the 9th that it has launched the compact high-voltage gate driver, the STGAP2HS. This product supports applications that require up to 6kV of galvanic isolation between the gate drive channel and low-voltage control and interface circuits.

This 1200V device can sink and source up to 4A of output current, simplifying design and improving the reliability of medium- and high-power converters and power supplies, home appliance inverters, and industrial equipment such as factory automation, fans, induction heaters, welders, and UPS.

Additionally, it features dual input pins that allow designers to control signal polarity, and interlocking protection to prevent cross-conduction in the event of a controller malfunction. The inputs are compatible with CMOS/TTL logic up to 3.3 V, allowing easy interfacing with control devices. Furthermore, matching the propagation delay between low- and high-voltage sections prevents cycle distortion, minimizes energy loss, and enables high-frequency operation. CMTI is ±100 V/ns over the full -40°C to 125°C temperature range.

The STGAP2HS is available in two configurations: One configuration features separate output pins, allowing independent optimization of turn-on and turn-off times using dedicated gate resistors. The second configuration provides a single output pin and a Miller-clamp function to prevent gate spikes during high-speed commutation in half-bridge topologies. Each configuration allows designers to use N-channel MOSFETs in both high- and low-side bridge circuits, reducing external component costs.

The STGAP2HS integrates dedicated UVLO and thermal shutdown protection for both the low-voltage and high-voltage drive channels, along with overtemperature protection. This enhances reliability by preventing power switches from operating under low-efficiency or hazardous conditions. Input-to-output propagation delays of less than 75ns enable accurate pulse-width modulation (PWM) control, and a standby mode allows designers to reduce system power consumption.