Galvanically Isolated 4A Gate Driver for Safe Control of Silicon Carbide (SiC) MOSFETs

Galvanically Isolated 4A Gate Driver for Safe Control of Silicon Carbide (SiC) MOSFETs

News

ByRajni Setia 0

Galvanically Isolated 4A Gate Driver

STGAP2SiCS from STMicroelectronics is a highly optimized galvanically isolated gate driver that operates from a high-voltage rail up to 1200V and ensures safe control of Silicon Carbide (SiC) MOSFETs. Housed in a wide-body SO-8W package that ensures 8mm creepage within a compact footprint, the STGAP2SiCS is loaded with smart features.

The device is capable of producing a gate-driving voltage up to 26V, and it has raised the Under-Voltage Lockout (UVLO) threshold of 15.5V to meet the turn-on requirements of SiC MOSFETs. The driver features dual input pins that let designers determine the gate-drive signal polarity and its driving voltage is too low, which can be caused by the low supply voltage.

Its 4A output-sink/source capability is suited to mid-and high-power converters, power supplies, and inverters in equipment such as high-end home appliances, industrial drives, fans, induction heaters, welders, and UPSes. With 6kV of galvanic isolation between the input section and the gate-driving output, the STGAP2SiCS helps ensure safety in consumer and industrial applications.

There are two different output configurations available. One has separate output pins that allow independent optimization of turn-on and turn-off times using a dedicated gate resistor. While the second is featured for high-frequency hard switching, with a single output pin and active Miller clamp that limits oscillation of the SiC MOSFET gate-source voltage to prevent unwanted turn-on and enhance reliability. The input circuitry is compatible with CMOS/TTL logic down to 3.3V, which allows easy interfacing with a wide variety of control ICs.

The STGAP2SiCS features a standby mode that helps cut system power consumption. Besides, built-in protection including hardware interlocks to prevent cross conduction and thermal shutdown of both the low-voltage section and the high-voltage driving channel. Priced at $2.00 in quantities of 1000 units, this device is available on the company website

Get Our Weekly Newsletter!

Subscribe below to receive most popular news, articles and DIY projects from Circuit Digest

Related Content

Comments

Log in or register to post Comment