FAB REQUALIFICATION
The 33988 is a dual self-protected 8.0 mOhm silicon switch used to replace electromechanical relays, fuses and discrete devices in power management applications. The 33988 is designed for harsh environment and includes self-recovery 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 pulse-width modulation (PWM) control of each output. SPI-programmable fault trip thresholds allow the device to be adjusted for optimal performance in the application.
The 33988 is packaged in a power-enhanced 12 x 12 mm nonleaded PQFN package with exposed tabs.
This product is undergoing a fab migration and device qualification is not complete. PC samples are available now. For more information contact your local sales office.
Features
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Dual 8.0 mOhm max high side switch with parallel input or SPI control
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6.0 V to 27 V operating voltage with standby currents < 5.0 µA
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Output current monitoring with two SPI-selectable current ratios
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SPI control of over-current limit, over-current fault blanking time, output OFF open load detection, output ON/OFF control, watchdog timeout, slew-rates, and fault status reporting
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SPI status reporting of over-current, open and shorted loads, over-temperature, under-voltage and over-voltage shutdown, fail-safe pin status, and program status
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Enhanced -16 V reverse polarity VPWR protection
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