Atmel ATA6264 - 24 Application Circuits

77
4929B–AUTO–01/07
ATA6264 [Preliminary]
24. Application Circuits
Figure 24-1. Overview of a Typical Airbag System
COMSATO
SVSAT
COMEVZ
FBEVZ
VPERIFB
VPERI
VSAT
COMSATI
EVZ
GNDB
OCEVZ
GEVZ
K30
K15
K15 K1
CP-OUTCP
K2 RESQ2
UZP
RxD2
IASG1 to 5USP IREF
TxD2
RxD1
RESQ
GNDD
ISENS
GNDA
TxD1
COMCOO
Serial
interface
Sensor
Safety-
system
monitoring
D, L, C
net
Firing ASIC
Enable
Enable
Firing loops
Micro-
controller
COMCOI
VCORE
SVCORE
K1K30 K2 IASG1 to 5