L9660 Datasheet, PDF (1/49 Pages) STMicroelectronics – Quad squib driver ASIC for safety application

L9660
Quad squib driver ASIC for safety application
Datasheet - production data
'!0'03
LQFP64 (10x10x1.4mm)
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.
Order code
L9660
L9660TR
Table 1. Device summary
Amb. temp range, C
Package
-40 to +95
LQFP64
-40 to +95
LQFP64
Packing
Tray
Tape and reel
September 2013
This is information on a product in full production.
DocID024714 Rev 2
1/49
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