L9654:Quad squib driver and dual sensor interface for safety application

L9654 is intended to deploy up to 4 squibs and to interface up to 2 satellites.

Squib drivers are sized to deploy 1.2 A (min.) for 2 ms (min.) during load dump and 1.75 A (min.) for 1 ms (min.) during load dump.

Diagnostic of squib driver and squib resistance measurement is controlled by micro controllers.

Satellite interfaces support Manchester decoder with variable bit rates.

Key Features

  • 4 deployment drivers sized to deliver 1.2 A (min) for 2 ms (min) and 1.75 A (min) for 1ms (min).
  • Independently controlled high-side and low-side MOS for diagnosis
  • Analog output available for resistance
  • Squib short to ground, short to battery and MOS diagnostic available on SPI register
  • Capability to deploy the squib with 1.2 A (min.) or 1.75 A under 35 V load-dump condition and the low-side MOS is shorted to ground
  • Capability to deploy the squib with 1.2 A (min.) at 6.9 V VRES and 1.75 A at 12 V VRES .
  • Interface with 2 satellite sensors
  • Programmable independent current trip points for each satellite channel
  • Support Manchester protocol for satellite sensors
  • Supports for variable bit rate detection
  • Independent current limit and fault timer shutdown protection for each satellite output
  • Short to ground and short to battery detection and reporting for each satellite channel
  • 5.5 MHz SPI interface
  • Satellite message error detection
  • Low voltage internal reset
  • 2 kV ESD capability on all pins
  • Package: 48 lead LQFP
  • Technology: ST Proprietary BCD5s (0.57 ?m)
产品规格
DescriptionVersionSize
DS5610: Quad squib driver and dual sensor interface ASIC for safety application3.02 MB
应用手册
DescriptionVersionSize
AN4437: L9678 user configurable airbag3.04 MB
样片和购买
型号QuantityUnit Price (US$) *PackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)ECCN (EU)ECCN (US)Country of Origin
L9654TR--LQFP 48 7x7x1.4Tape And Reel--NECEAR99MALAYSIA
L9654--LQFP 48 7x7x1.4Tray--NECEAR99MALAYSIA
质量和可靠性
型号PackageGradeRoHS Compliance GradeMaterial Declaration**
L9654TRLQFP 48 7x7x1.4AutomotiveEcopack2
L9654LQFP 48 7x7x1.4AutomotiveEcopack2
Quad squib driver and dual sensor interface ASIC for safety application L9654
L9678 user configurable airbag L9680