Features

 Four protected low-side drivers with

diagnostics

– Two 140 mΩPWM controlled outputs

(Q1 & Q2)

– Two 250 mcurrent controlled outputs with

6 accuracy (Q3 & Q4)

 All outputs with 35 V Zener Clamp

 Programmable output timer

 Clock monitor

 Integrated recirculation diodes

 16 bit serial peripheral interface, up to 5 MHz

with diagnosis

 Battery compatible supply voltage

 Detailed load diagnosis

– Over load protection

– Open load (off-state)

– Undercurrent

– Undervoltage

– Temperature warning and shutdown

– Power or signal GND loss

– Freewheeling diode loss

– Silent valve driver test

Description

The L9374LF is a SPI (serial peripheral interface)

controlled four channel low side driver with

integrated recirculation diodes.

The output duty cycle (all channels) / current

regulation level (Q3 & Q4 only) can be

programmed individually. It is possible to program

two consecutive output duty cycles or target

currents per channel as well as an individual

duration time for each channel actuation.