L9659 datasheet(38/51 Pages) STMICROELECTRONICS

부품명	L9659

상세설명	Octal squib driver ASIC for safety application

PDF	51 Pages

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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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38 / 51 page

Functional description

L9659

38/51

Doc ID 022048 Rev 2

TX – 0x6001 – Command ignored – sequence is not allowed

RX – 0xD005

If, for example, channel 0 and 1 bits are set in the Arm command and channel 0 and 7 bits

are set in the fire command then the result will be the drivers on channel 0 will be activated

(assuming FEN function is active) and there will be no effect on channel 7.

During a deployment, any commands directed to the channel that are in deployment are

ignored and the response shall be 0xD009.

Diagnostic commands

Diagnostic Mode

Diagnostic mode main functions are as follows:

●

Squib short to battery/ground diagnostics

●

Loop to loop diagnostics

●

Normal Squib Resistance Diagnostics

●

High Squib Resistance Diagnostics

●

High side safing diagnostics

●

VRESx measurement

●

LS and HS FET Test

The SPI message definition for MOSI commands and MISO responses in Diagnostic Mode

are defined below.

L9659 데이터시트(PDF) 38 Page - STMicroelectronics