Datasheet > L9654

L9654

更新时间： 2023-12-20 18:45:31

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		驱动传感器驱动器
页数	文件大小	规格书
59页	2080K
描述
用于安全应用的四通道发火管驱动器和双通道传感器接口

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L9654 数据手册

L9654

Quad squib driver and dual sensor interface

ASIC for safety application

Datasheet - production data

 Support Manchester protocol for satellite

sensors

 Supports for variable bit rate detection

 Independent current limit and fault timer

shutdown protection for each satellite output

*$3*36ꢀꢁꢂꢃꢄ

 Short to ground and short to battery detection

LQFP48

and reporting for each satellite channel

 5.5 MHz SPI interface

 Satellite message error detection

 Low voltage internal reset

Features

 4 deployment drivers sized to deliver 1.2 A

(min) for 2 ms (min) and 1.75 A (min) for

1ms (min).

 2 kV ESD capability on all pins

 Package: 48 lead LQFP

 Technology: ST Proprietary BCD5s (0.57 μm)

 Independently controlled high-side and low-

side MOS for diagnosis

Description

 Analog output available for resistance

 Squib short to ground, short to battery and

L9654 is intended to deploy up to 4 squibs and to

interface up to 2 satellites.

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

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.

 Capability to deploy the squib with 1.2 A (min.)

Diagnostic of squib driver and squib resistance

measurement is controlled by micro controllers.

at 6.9 V V

and 1.75 A at 12 V V

RES

 Interface with 2 satellite sensors

Satellite interfaces support Manchester decoder

with variable bit rates.

 Programmable independent current trip points

for each satellite channel

Table 1. Device summary

Order code

Package

Packing

L9654

LQFP48

Tray

L9654TR

Tape and reel

November 2013

DocID14218 Rev 3

1/59

This is information on a product in full production.

www.st.com

12 3 4 5 6 7...59

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