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L9662 Datasheet Octal Squib Driver And Quad Manchester/psi5 Encoded Sensor Interface Asic

Manufacturer: STMicroelectronics

Overview: L9662 Octal squib driver and quad Manchester/PSI5 encoded sensor interface ASIC for safety application Datasheet - production data '!0'03 LQFP64 (10x10x1.

General Description

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.

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 lowside MOS for diagnosis.
  • Analog output available for resistance measurement.
  • Squib short.

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