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Multi-Channel Half-Bridge Drivers

Our multi-channel half bridge drivers support brushed DC motors in automotive and industrial applications. They are designed to support three to six independent driver stages and currents up to 1A each half bridge output. The control and diagnosis interface is a 16-Bit SPI. The devices are designed in BCD-on-SOI architecture, combining high-voltage capability with the benefits of rugged SOI technology: high-temperature resistance, excellent radiation hardness, very low leakage currents, low parasitic and latch-up immunity.

Main Features

Supply and operation up to 40V
RDSon maximum 1.5–1.8Ω
Up to 650mA–1A load current
Three or six half-bridge outputs
Capable of switching all kinds of loads such as DC motors, bulbs, resistors, capacitors and inductors
PWM capability up to 25 kHz for each half bridge output controlled by external PWM signal (ATA6831C, ATA6832C)
No shoot-through current
Very low quiescent current < 2 µA in Standby Mode versus total temperature range
Outputs short circuit protected
Overtemperature prewarning and protection for each output stage
Selective thermal shutdown for every single output stage (ATA6831C, ATA6832C)
Maximum junction temperature up to 200°C (ATA6832C)
Undervoltage protection
Various diagnostic functions such as shorted out, open-load, overtemperature and power-supply fail detection
SPI interface, daisy chain capable

Multi-Channel Half-Bridge Drivers

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