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L9660 - Quad squib driver ASIC

Datasheet Summary

Description

The L9660 is intended to deploy up to 4 squibs.

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.

Features

  • 4 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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Datasheet preview – L9660

Datasheet Details

Part number L9660
Manufacturer STMicroelectronics
File Size 620.02 KB
Description Quad squib driver ASIC
Datasheet download datasheet L9660 Datasheet
Additional preview pages of the L9660 datasheet.

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Full PDF Text Transcription

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L9660 Quad squib driver ASIC for safety application Datasheet - production data '!0'03 LQFP64 (10x10x1.4mm) Features  4 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 to ground, short to battery and MOS diagnostic available on SPI register  Capability to deploy the squib when the low side MOS is shorted to ground  2 fire enable inputs  5.
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