The AUIR2085S is a self oscillating Half-bridge Driver IC suitable for push-pull converters without restriction on input voltage. The half-bridge driver IC with 50% duty cycle ideally suited for 36 to 75V half-bridge DC-bus converters. Internal soft-start increases the pulse width during power up and maintains pulse width matching for the high and low outputs throughout the start up cycle. Typically soft-start duty cycle varies beginning from 5 to 10% ramping up to about 50% over 1000 cycles. It initiates a soft start at power up and after every over-current condition. Under-voltage lockout prevents operation if VCC is less than 7.5V.
Adjustable over-current protection
Programmable switching frequency with up to 500kHz max per channel
±1A Drive current capability optimized for low charge MOSFETs
Adjustable dead-time 50 to 200ns
Floating channel designed for bootstrap operation up to 100VDC
(EN)
