Features

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AEC-Q100 qualified

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Squib/LEA deployment drivers

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8 channel HSD/LSD for squib load

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2 over 8 channels supporting LEA load

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2 channel couples supporting common-return connection

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18 V deployment voltage

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Low, high and automatic dynamic deployment current profiles

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R measure, STB, STG and leakage diagnostics

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High and low side driver FET tests

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LEA presence diagnostics

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Remote sensor interface and SYNC pulse supply voltage inputs and monitorings

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Two channel PSI-5 v2.3 remote sensor interface

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Two channel general purpose low side drivers with 0-100% PWM control

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Seven channel hall-effect, resistive or switch sensor interface

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System voltage diagnostics with integrated ADCs

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Temperature sensor

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32 bit Global SPI bus interface

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32 bit Remote Sensor SPI bus interface, SafeSPI v1.0 compatible

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Full ISO 26262 compliant, ASIL-D systems ready

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Packaging 64 pin

Description

The L9689E is an airbag extension chip, family compatible with L9691 and L9690

devices.

The IC includes eight deployment drivers, supporting both squib and low-energy

actuator (LEA) loads (on two channels only). Additionally, it includes a two channels

interface for PSI-5 remote sensors, a seven channels hall-effect/resistive sensor

interface and two general purpose low-side driver outputs.

Dual SPI interfaces separate device global functions and remote sensors; all

deployment loops are armed via snooping on the remote sensor SPI interface and an

internal programmable mapping.

TQFP64 exposed pad down

(10x10x1.0 mm)

Product status link

L9689E

Product summary

Order code

Package

Packing

L9689E -

TR

TQFP64EP

10x10x1.0

mm

Tape and

reel

Automotive 8 channels chip for advanced airbag applications

L9689E

Data brief

DB4807 - Rev 2 - September 2022

For further information contact your local STMicroelectronics sales office.

www.st.com