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L9679P Datasheet(PDF) 241 Page - STMicroelectronics

No. de pieza L9679P
Descripción Electrónicos  Automotive advanced airbag IC for mid/high end applications
PDF  272 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9679P Datasheet(HTML) 241 Page - STMicroelectronics

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L9679P
Electrical characteristics
271
17.15
VSF regulator
All electrical characteristics are valid for the following conditions unless otherwise noted:
-40 °C
 Ta  +95 °C, VINGOOD0  VIN  35V, VSF + 2V  ERBOOST
Table 53. VSF regulator DC specifications
No
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
1
VSF
Output voltage
All line, load, IO_VSF up to 6mA
SYS_CGF(VSF_V)= 0
18
20
22
V
2
All line, load, IO_VSF up to 6mA
Only in case
SYS_CTL(ER_BST_V)=1
SYS_CGF(VSF_V) = 1
23
25
27
V
3ILIM_VSF
Output load current limit
VSF = 0
7
10
13
mA
4VDO_VSF
Drop-out voltage
V(ERBOOST-VSF)
-
-
2
V
5CVSF
Output capacitance
Design Info
2.9
-
14
nF
6
ILKG_VSF_OFF VSF input leakage
Device OFF
-5
-
5
μA
7RPD_VSF
VSF pull-down resistance
Device ON
VSF regulator OFF; VSF = 25V
60
125
220
kΩ
8IPD_VSF
VSF pull-down current
Device ON
VSF regulator ON; Design Info
34
40
46
μA
9IPD_VSF_TOT VSF total pull-down current
Device ON
VSF regulator ON
VSF = 25V
SYS_CGF(VSF_V)= 1
147
230
462
μA
Table 54. VSF regulator AC specifications
No
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
1TON_VSF
VSF turn on time
CVSF = 14 nF
Measured from VSF_EN=1 to
VSF inside regulation limits
-
-
100
μs



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