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L9689E-TR

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Automotive 8 channels chip for advanced airbag applications

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Parameter NameParameter Value
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius175.0
Operating Voltage Min Volt5.4
Operating Voltage Max Volt18.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTape And Reel
RoHs compliantEcopack2
GradeAutomotive Safety
Package NameTQFP 64 10x10x1.0

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.

Key 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