Ameya360：ST launch L9654

Release time：2023-01-16
author：Ameya360
source：网络
reading：1532

　　Ameya360 reports:L9654 is intended to deploy up to 4 squibs and to interface up to 2 satellites.Diagnostic of squib driver and squib resistance measurement is controlled by micro controllers.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.Satellite interfaces support Manchester decoder with variable bit rates.

Ameya360：ST launch L9654

　　All 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 low-side 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 VRESand 1.75 A at 12 V VRES.

　　Interface with 2 satellite sensors

　　Programmable independent current trip points for each satellite channel

　　Support Manchester protocol for satellite sensors

　　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

　　5.5 MHz SPI interface

　　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 ?m)


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