EL SEGUNDO, Calif. — International Rectifier, IR® (NYSE: IRF), a world leader in power management technology, today introduced the AUIRS4427S dual low-side driver IC for low- mid- and high-voltage automotive applications including general purpose motor drives, automotive DC-DC converters and hybrid powertrain drives.

The AUIRS4427S is a low-voltage, high speed power MOSFET and IGBT driver qualified to AEC-Q100 standards. The output drivers feature a high pulse current buffer stage for minimum driver cross-conduction and matched propagation delay for both channels. Negative voltage spike (Vs) immunity is provided to protect against catastrophic events during high-current switching and short circuit conditions.

“With its benchmark negative voltage spike immunity and matched propagation delay, the AUIRS4427S is an extremely rugged dual low-side driver that enables fast switching speeds making the device ideally suited to high power DC-DC converters and powertrain applications,” said Henning Hauenstein, vice president of IR’s Automotive Products.

The AUIRS4427S, which is 3.3V and 5V logic compatible with standard CMOS or LSTTL output, features gate voltage (VOUT) up to 20V, CMOS Schmitt-triggered inputs, two independent gate drivers, and outputs in phase with inputs.

Specifications

Part Number	Package	VOUT	Io+ & Io-	ton & toff (typ.)
AUIRS4427S	SOIC-8	6V – 20V	2.3A & 3.3A	50ns & 50ns

Availability and Pricing

Available in an 8-pin SOIC package, pricing for the AUIRS4427S begins at US $0.51 each in 100,000-unit quantities. Production orders are available immediately. The automotive-qualified device is lead-free and RoHS compliant. Prices are subject to change.