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L9679E Datasheet(PDF) 95 Page - STMicroelectronics

Part # L9679E
Description  Automotive battery cut-off circuit and airbag system expansion IC
PDF  127 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9679E Datasheet(HTML) 95 Page - STMicroelectronics

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12
Applications
The main applications for this IC are two:
•
as user configurable airbag IC;
•
as pyro fuse manager IC.
12.1
Application circuit
Figure 27. Application circuit
C5÷C8
SSxy
SFx
SRx
MOSI_X
MISO_X
SCLK_X
CS_X
RSUx
C9÷C16
C17÷C24
C25÷C28
L9679E
L96xx
VER
VSF
SYNCBOOST
SATBUCK
VCC
C2b
C3c
C1a
C1b
C4
RESET_N
RESET_N
SGxy
D1÷D4
uC_FLEN
PUMD15
D6
D5
R1
Q1
LOAD
uC_DIAGEN
R2
C29
C30
R3
R4 R8
R9
÷
R10
R11
C3b
C2b
Q2
L9679E
Applications
DS12485 - Rev 8
page 95/127



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