MC33879
description
The 33879 device is an 8-output hardware configurable, high-side/low-side switch with 16-bit serial input control using the Serial Peripheral Interface (SPI). Two of the outputs may be controlled directly via a microcontroller for pulse-width modulation (PWM) applications. The 33879 incorporates SMARTMOS technology, with CMOS logic, bipolar/MOS analog circuitry, and DMOS power MOSFETs. The 33879 controls various inductive, incandescent, or LED loads by directly interfacing with a microcontroller. The circuit’s innovative monitoring and protection features include very low standby currents, cascade fault reporting, internal +45 V clamp voltage for low-side configuration,
- 20 V high-side configuration, output specific diagnostics, and independent overtemperature protection.
2 Features and benefits
- Designed to operate at 5.5 V < VPWR < 27.5 V
- 16-bit SPI for control and fault reporting, 3.3 V / 5.0 V patible
- Outputs are current limited (0.6 A to 1.2 A) to drive...
