Features

• AEC-Q100 qualified

• Squib/LEA deployment drivers

– 8 channel HSD/LSD for squib load

– 2 over 8 channels supporting LEA load

– 2 channel couples supporting common-return connection

– 18 V deployment voltage

– Low, high and automatic dynamic deployment current profiles

– R measure, STB, STG and leakage diagnostics

– High and low side driver FET tests

– LEA presence diagnostics

• Remote sensor interface and SYNC pulse supply voltage inputs and monitorings

• Two channel PSI-5 v2.3 remote sensor interface

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

• Seven channel hall-effect, resistive or switch sensor interface

• System voltage diagnostics with integrated ADCs

• Temperature sensor

• 32 bit Global SPI bus interface

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

• Full ISO 26262 compliant, ASIL-D systems ready

• 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.