L9369-TR | ST | Automotive grade EPB dedicated dual H-bridge gate pre-driver IC, for automotive rear wheel electronic handbrake controller, driving external MOSFET power transistor

L9369-TR 

L9369‑TR 

I. Appearance and packaging information

Package: LQFP-64, size 10×12×1.4 mm, SMT, four-corner pin, one corner dot marking pin 1, STMicroele...

Screen printing: chip body screen printing L9369, no complete suffix -TR; TR stands for tape and reel shipment.

Packaging: MSL‑3 moisture-sensitive grade, wrapped in a box;Automotive electronic standard spool 1000 pcs / spool

Grade: AEC‑Q 100 automotive grade, supports ISO2626 2 functional safety design concept

2. Core electrical parameters

form

project

Specification

Battery power supply voltage

3.4V-32V, vehicle 12V battery system STMicroele...

Driving architecture

2-way independent H bridge pre-drive, drive 8 external N-MOS transistors (excluding built-in power transistors) STMicroelectronics

Communication interface

10MHz SPI, 32-bit with CRC check, secure diagnostic communication STMicroele...

ADC channel

10-channel Σ‐Δ ADC, built-in 10-channel full differential amplifier, for motor current and voltage sampling, STMicroelectronics

Temperature range

-40°C ~ +175°C (automotive grade high temperature tolerance)

Peripheral interface

4-way GPIO, 9-way key input, 2-way MSS motor Hall speed sensor interface Electronic Engineering World...

Built-in function

BIST self-test, watchdog WDT, dual-bandgap reference source, sleep mode system wake-up

Protection function

Programmable overcurrent protection, VDS drain-source voltage monitoring, undervoltage, overheat protection

III. Core features of the product

Designed specifically for automotive EPB electronic parking brake, it supports two mainstream EPB schemes: cable-puller and motor gear unit MGU, controlling the left and right rear wheel handbrake motor STMicroelectronics.

Only gate pre-drive, power MOSFET external, engineers can choose power tube according to motor current, suitable for different torque handbrake.

Complete signal chain: differential amplifier + multi-channel ADC, directly collect motor current and voltage, chip internal complete signal conditioning, reduce MCU burden.

SPI with CRC check, lots of self-diagnosis BIST, meet the requirements of automotive functional safety, fault status reported to the master through SPI.

The EPB button can wake up the chip in sleep mode, meeting the demand of holding the handbrake when the engine is off.

Two high and low side drives are included, which can directly drive the EPB button indicator.

⚠️Important reminder: There is no power MOSFET inside the chip, and 8 N-channel power transistors must be externally connected to drive the motor. It cannot be directly connected to the motor load.

IV. Typical Application Scenarios

Passenger car EPB electronic parking brake controller (mainstream 12V fuel / hybrid model rear wheel handbrake module)

Automotive chassis domain controller, integrated electronic handbrake function board card

Commercial vehicle small parking brake electronic control unit

A dual-DC motor vehicle drive system with functional safety requirements

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