The 33982 is a self-protected silicon 2.0 mOhm high-side switch used to replace

electromechanical relays, fuses, and discrete devices in power management

applications. The 33982 is designed for harsh environments and includes selfrecovery

features. The device is suitable for loads with high inrush current, as

well as motors and all types of resistive and inductive loads.

Programming, control, and diagnostics are implemented via the serial peripheral

interface (SPI). A dedicated parallel input is available for alternate and pulsewidth

modulation (PWM) control of the output. SPI-programmable fault trip

thresholds allow the device to be adjusted for optimal performance in the application.

Features

• Single 2.0 m max high-side switch with parallel input or SPI control

• 6.0 V to 27 V operating voltage with standby currents < 5.0 A

• Output current monitoring with two SPI-selectable current ratios

• SPI control of overcurrent limit, overcurrent fault blanking time, output OFF

open load detection, output ON/OFF control, watchdog timeout, slew

rates, and fault status reporting

• SPI status reporting of overcurrent, open and shorted loads,

overtemperature shutdown, undervoltage and overvoltage shutdown,

Fail-safe pin status, and program status

• Enhanced -16 V reverse polarity VPWR protection