CS2082 Datasheet, PDF (1/12 Pages) ON Semiconductor – Dual Airbag Deployment ASIC

CS2082
Dual Airbag
Deployment ASIC
The CS2082 controls and monitors two airbag firing loops. The
independent firing loops are low– and high–side controlled. Device
communication is through a Serial Peripheral Interface (SPI) port, and
includes frame error detection circuitry for data reliability.
Diagnostics include squib resistance measurement and continuous
monitoring for shorts to ground, shorts to battery, and for open loops.
The high– and low–side drivers can be individually activated to
guarantee function and to identify shorts between firing loops.
Additional features include power on reset, overtemperature
protection, a charge pump, high–side safing sensor closure detection,
an analog multiplexer, a monitor to ensure battery potential, and a
programmable monitor to ensure firing potential.
Features
• Serial Input Bus
• Two Squib Outputs
• Low– and High–Side Control
• Monitors
– Squib Resistance
– Short to Ground or Battery
– Battery Potential
– Firing Potential
• Safing Sensor Detection
• 60 V Peak Transient Voltage
http://onsemi.com
SO–20L
DW SUFFIX
CASE 751D
PIN CONNECTIONS AND
MARKING DIAGRAM
1
V_BAT
CHRG
V_RES
VR1
SH1
SL1
FG1
D_OUT
CLK
MR
20
GND
V_CC
D_IN
VR2
SH2
SL2
FG2
A_IN
A_OUT
CS
A
WL, L
YY, Y
WW, W
= Assembly Location
= Wafer Lot
= Year
= Work Week
ORDERING INFORMATION
Device
Package
Shipping
CS2082EDW20 SO–20L 37 Units/Rail
CS2082EDWR20 SO–20L 1000 Tape & Reel
© Semiconductor Components Industries, LLC, 2001
1
July, 2001 – Rev. 7
Publication Order Number:
CS2082/D