MCZ33996EKR2

The 33996 low-side switch with SPI control interfaces with microcontrollers by directly interfacing with them and serving as a bus expander and buffer with fault management features that reduce the MCU's fault management burden. It operates at system clock serial frequencies up to 6.0 MHz using a Serial Peripheral Interface (SPI) for control and diagnostic readout. The device functions as a 16-output serial switch, relieving the MCU of fault management functions and providing fault reporting features.

The key features of the 33996 low-side switch with SPI control mentioned in the document include: - Designed to operate with a voltage range of 5.0 V < VPWR < 27 V - 24-bit SPI for control and fault reporting, compatible with 3.3 V/5.0 V logic levels - Outputs are current limited (0.9 A to 2.5 A) for driving incandescent lamps - Output voltage clamp of +50 V during inductive switching - On/off control of open load detect current for LED applications - VPWR standby current less than 10 µA - RDS(ON) of 0.55 Ω at 25°C typical - Independent overtemperature protection - Output selectable for PWM control - Output ON short-to-VBAT and OFF short-to-ground/open detection - Fault operation includes reporting overtemperature faults, overcurrent conditions, and open load faults

The purpose of the 33996 low-side switch with SPI control is to serve as a 16-output power switch designed for a variety of applications including inductive, incandescent, and LED loads. It provides input control and diagnostic readout through a 24-bit serial input control. Additionally, it offers features such as PWM control input for pulse width modulation of multiple outputs, a dedicated reset input to clear internal registers and turn off all outputs, and compatibility with both 3.3V and 5.0V CMOS logic levels. The 33996 acts as a bus expander and buffer with fault management features, reducing the MCU's fault management burden.