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L9678P Datasheet(PDF) 173 Page - STMicroelectronics

Part # L9678P
Description  Automotive user configurable airbag and battery cut-off IC
PDF  215 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9678P Datasheet(HTML) 173 Page - STMicroelectronics

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DS11626 Rev 9
173/216
L9678P, L9678P-S
Applications
214
R2
-
1
-
kΩ
100 mW
VBATMON current limit resistor
R3
-
3
-
kΩ
250 mW
VDD5 pull-up resistor
R4
-
1.5
-
kΩ
100 mW
VDD5 pull-down
R5
-
3
-
kΩ
250 mW
VSUP pull-up resistor
R6
-
2 x 221
Ω
2 x 500mW
Safing FET diagnostic resistors (two in
series suggested)
R7
-
1.5
kΩ
100 mW
Safing FET passive pull-up resistor
R8
-
22
kΩ
100 mW
External Safing FET enable resistor
R9
-
510
-
Ω
125 mW
ISO9141 pull-up resistor
R10
-
22
-
kΩ
100 mW
WDT/TM resistor
R11
-
2 x 110
-
Ω
2 x 500 mW
Safing FET diagnostic resistors (two in
series suggested)
R12, R13
-
4.7
-
kΩ
100 mW
Safing FET diagnostic resistor
R14
-
4.7
-
kΩ
100 mW
Safing FET diag enable resistor
R15
-
4.7
-
kΩ
100 mW
Safing FET diag enable pull-down resistor
Q1
-
1
-
A
-
VDD5 external pnp transistor
Q2
-
1
-
A
-
VSUP external pnp transistor
Q3
-
60
-
A
60 V
External Safing FET (N-channel)
Q4
-
-
-
-
-
WDT/TM switch, see Section 8.3
Q5
-
1
-
A
40 V
Safing FET diag enable switch
U1
-
-
-
-
PUMD15
External Safing FET enable
Table 13.Bill Of Materials (continued)
Component
Min.
Typ.
Max.
Unit
Requirement
Note



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