AUIRS20302S 3-Phase Gate Drive ICThe automotive qualified AURS20302S three-phase gate driver IC is designed for 12V, 24V and 48V vehicle applications including high-voltage air conditioner compressors, pumps, BLDC motor drives up to 600W and high-voltage motor drives.

Features• 3-Phase Gate Driver for 24V and higher

drives• Under-voltage lockout for all channels• Cross-conduction prevention logic• High voltage pre-regulator MOSFET• Power-on reset architecture• FAULT detection and reset• Current sense comparator• Over-current blanking time• 3.3V logic compatible• Matched propagation delay for all channels• Fully operational up to +200V• Floating channels for bootstrap operation• High negative transients immunity• Pre-regulated supply line for uP• Automotive qualified• Lead-free, RoHS compliant

Advantages• The AUIRS20302S targets 12V, 24V and 48V

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

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

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September 2012

September 2012