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L9658 - Octal squib driver and quad sensor interface ASIC

Datasheet Summary

Description

L9658 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 minimum during load dump and 1.75 A minimum for 1ms minimum during load dump.

Features

  • 8 deployment drivers sized to deliver 1.2 A (min) for 2 ms (min) and 1.75 A (min) for 1 ms (min).
  • Independently controlled high-side and lowside 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.

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Datasheet preview – L9658

Datasheet Details

Part number L9658
Manufacturer STMicroelectronics
File Size 571.85 KB
Description Octal squib driver and quad sensor interface ASIC
Datasheet download datasheet L9658 Datasheet
Additional preview pages of the L9658 datasheet.

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Full PDF Text Transcription

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L9658 Octal squib driver and quad sensor interface ASIC for safety application Features ■ 8 deployment drivers sized to deliver 1.2 A (min) for 2 ms (min) and 1.75 A (min) for 1 ms (min) ■ Independently controlled high-side and lowside 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.
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