描述 Description

The L9374 is a four channel low side driver with integrated recirculation diodes. The switching of the channels is programmable via a SPI (Serial Peripheral Interface). The main time base is given by an external clock via CLKin. The Clock Unit monitors this external clock and provides the system clock for all timings.

特性 Features

■ Four low-side output drivers with protection diagnostic

– 2 PWM controlled channels (0.2Ωtyp)

–2 current controlled channels with 6 accuracy (0.3Ωtyp)

■ All outputs with 35V Zener clamp

■ Programmable channel timer

■ Clock monitor

■ Integrated recirculation diodes

■ Serial Peripheral Interface with 16bits, up to 5MHz with diagnosis

■ Battery compatiblesupply voltage

■ Detailed Load diagnosis

– Over load protection

– Open Load

– Under-current

– Under Voltage

– Temperature Warning and Shutdown

– Power or Signal GND loss

– Freewheeling diode loss

– Silent valve driver test