L9374LF Series

4-channel valve driver

Catalog

4-channel valve driver

Part	Output Type	Fault Protection	Ratio - Input:Output	Output Configuration	Voltage - Supply (Vcc/Vdd)	Switch Type	Number of Outputs	Input Type	Package / Case	Features	Interface	Mounting Type	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Load [Min]	Voltage - Load [Max]	Supplier Device Package	Rds On (Typ)	Current - Output (Max) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]
STMicroelectronics L9374TRLF	N-Channel	Current Limiting (Fixed) Open Load Detect Over Temperature UVLO	1:4	Low Side		General Purpose	4	Non-Inverting	PowerSO-36 Exposed Bottom Pad	Internal PWM Power Good	SPI	Surface Mount	-40 °C	125 °C	5.2 V	20 V
STMicroelectronics L9374LF	N-Channel	Current Limiting (Fixed) Open Load Detect Over Temperature Over Voltage	1:4	Low Side		General Purpose	4	Non-Inverting	36-PowerBSSOP		SPI	Surface Mount	-40 °C	125 °C			PowerSO-36 Bottom Pad	140 mOhm 250 mOhm	1.8 A	5.2 V	20 V

Catalog

4-channel valve driver

Key Features

• Four protected low-side drivers with diagnostics

- Two 140 mΩPWM controlled outputs(Q1 & Q2)

- Two 250 mΩ current controlled outputs with 6 % accuracy (Q3 & Q4)

• 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.