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L9654 Datasheet PDF

STMicroelectronics L9654

L9654 is intended to deploy up to 4 squibs and to interface up to 2 satellites.
Part No. L9654
Datasheet L9654 Download
Manufacturer
STMicroelectronics
Description Quad squib driver and dual sensor interface ASIC
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L9654 datasheet page 1 preview

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 lowside MOS for diagnosis
● Analog output available for resistance
● 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 μm)

DESCRIPTION

● 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 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.
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