Three-phase gate driver IC suits vehicle applications

The automotive-qualified AUIRS20302S is a three-phase gate driver IC for 12, 24, and 48-V vehicle applications including high-voltage air conditioner compressors, pumps, BLDC motor drives up to 600 W, and high-voltage motor drives.

The AUIRS20302S targets 12, 24, and 48-V boardnet automotive platforms operating at voltages to 200 V. The new device features an external pre-regulator to generate its own supply voltage to ensure that the gate drives do not exceed 17 V even during load dump conditions. The pre-regulator VPR pin can also supply the surrounding system components if the total consumption does not exceed 100 mA.

The AUIRS20302S is capable of driving 6 N-channel power MOSFETs or IGBTs using a bootstrap technique to supply the high-side driving circuitry. The device also features embedded deadtime and cross-conduction prevention functions and under-voltage and over-current protection with diagnostics.

Proprietary HVIC and latch immune CMOS technologies enable ruggedized monolithic construction. The logic input is compatible with standard CMOS or LSTTL outputs, down to 3.3 V logic. The output driver features a high pulse current buffer stage designed for minimum driver cross-conduction. Propagation delays are matched to simplify use in high frequency applications.

IR's automotive grade IC products are subject to dynamic and static part average testing combined with 100% automated wafer level visual inspection as part of the company's automotive quality initiative targeting zero defects. The devices are qualified according to AEC-Q100 standards and feature an environmentally friendly, lead-free and RoHS compliant bill of materials.

For more information, contact International Rectifier, 233 Kansas St., El Segundo, CA 90245. Phone: (310) 252-7105.