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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)
'!0'03
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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