L9660 datasheet(1/49 Pages) STMICROELECTRONICS

Numer części	L9660

Szczegółowy opis	Quad squib driver ASIC for safety application

PDF	49 Pages

Scroll/Zoom	100%

Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

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1 / 49 page

This is information on a product in full production.

September 2013

DocID024714 Rev 2

1/49

L9660

Quad squib driver ASIC for safety application

Datasheet

- production data

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 low-

side 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

 5.5 MHz SPI interface

 Low voltage internal reset

 2 kV ESD capability on all pins

 Package: LQFP64

 Technology: ST proprietary BCD5 (0.65µm)

 RoHS compliant

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.

Full diagnostic capabilities of the squib interface

are provided.

LQFP64 (10x10x1.4mm)

Table 1. Device summary

Order code

Amb. temp range,

C

Package

Packing

L9660

-40 to +95

LQFP64

Tray

L9660TR

-40 to +95

LQFP64

Tape and reel

www.st.com

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