FAB REQUALIFICATION
The 33880 device is an 8-output hardware configurable high side/low side switch with 8-bit serial input control using the serial peripheral interface (SPI). Two of the outputs can be controlled directly via microcontroller for pulse-width modulation (PWM) applications.
The 33880 controls various inductive or incandescent loads by directly interfacing with a microcontroller.
The circuit's innovative monitoring and protection features include very low standby currents, “cascadable” fault reporting, internal 40 V output clamping for low side configurations, internal -20 V output clamping for high side configurations, output specific diagnostics, and independent shutdown of outputs.
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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Designed to operate 5.5 V ≤ VPWR ≤ 24.5 V
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8-bit SPI for control and fault reporting, 3.3/ 5.0 V compatible
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Outputs are current limited (0.8 A to 2.0 A) to drive incandescent lamps
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Output voltage clamp is +45 V (typical) (low side drive) and -20 V (typical) (high side drive) during inductive switching
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Internal reverse battery protection on VPWR
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Loss of ground or supply will not energize loads or damage IC
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Maximum 5.0 µA IPWR standby current at 13 V VPWR up to 95 °C
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RDS(ON) of 0.55 Ohm at 25 °C typical
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Short circuit detect and current limit with autoretry
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Independent over-temperature protection
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32-pin SOICW has pins 8, 9, 24, and 25 grounded for thermal performance
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