L9662 Active

Octal squib driver and quad Manchester/PSI5 encoded sensor interface ASIC for safety application
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius95.0
Operating Voltage Min Volt7.0
Operating Voltage Max Volt37.0
Packing TypeTray
ROHS Compliance GradeEcopack2
Package NameLQFP 64 10x10x1.4
Key Features
  • 8 deployment drivers with SPI selectable firing current and times
  • Capability to deploy the squib with 1.2 A (min)/2 ms, 1.75 A (min)/1.0 ms and 1.75 A (min)/0.65 ms between VRES of 7 V to 37 V
  • Capability to deploy the squib with 1.5 A (min)/2 ms between VRES of 7 V to 25 V
  • Firing capability to deploy all channels simultaneously
  • Independently controlled high-side and low-side MOS for diagnosis
  • Analog output available for resistance measurement
  • Squib short to ground, short to battery and MOS diagnostic available on SPI register
  • Capability to deploy the squib the low side MOS is shorted to ground
  • 4 Fire enable inputs
  • Interface with 4 satellite sensors
  • Programmable independent current trip points for each satellite channel
  • Support Manchester 1 or 2 protocol for satellite sensors
  • Support PSI5 (Parity) protocol for satellite sensors (reference PSI5 technical specification V 1.2 /14.06.07)
  • Support for Sync pulse and minibus for satellites
  • 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
  • 2 independent SPI interfaces
  • 5.5 MHz SPI interface
  • Satellite message error detection
  • Hall effect sensor support on satellite channels 3 and 4.
  • Low voltage internal reset
  • 2 kV ESD capability on all pins
  • Package: LQFP64
  • Technology: ST Proprietary BCD5

The device is intended to deploy up to 8 squibs and to interface up to 4 satellites. 2 satellite interfaces can be used to interface Hall sensors. Squib drivers are sized to deploy 1.2 A minimum for 2 ms, 1.75 A minimum for 1 ms and 1.75 A minimum for 0.65 ms during load dump along with 1.5 A minimum for 2 ms for VRES voltages less than 25 V.

Full diagnostic capabilities of the squib interface are provided. Satellite interfaces support Manchester 1, 2 and PSI5 decoding with variable bit rate.

Out of stock
Range Unit Price Savings
1 - 9$6.640%
10 - 24$6.0010%
25 - 99$5.7214%
100 - 249$4.7429%
250 - 499$4.3235%
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