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.