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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.