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L9678P датащи(PDF) 179 Page - STMicroelectronics

номер детали L9678P
подробное описание детали  Automotive user configurable airbag IC
PDF  203 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9678P датащи(HTML) 179 Page - STMicroelectronics

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DocID029274 Rev 3
179/203
L9678P, L9678P-S
Electrical characteristics
202
15.15
VSF regulator
All electrical characteristics are valid for the following conditions unless otherwise noted.
-40 °C
 Ta  +95 °C, VINGOOD1(max)  VIN  35 V, VSF + 2V  ERBOOST
– VSF = 25V
– SYS_CGF(VSF_V)= 0
Table 44. VSF regulator DC specifications
N°
Symbol
Parameter
Condition
Min
Typ
Max
Unit
1
VSF
Output voltage
All line, load, IO_VSF up to 6 mA
SYS_CFG(VSF_V)= 0
18
20
22
V
2
All line, load, IO_VSF up to 6 mA
BST33V = 1, SYS_CFG(VSF_V)= 1
23
25
27
V
3ILIM_VSF
Output load current limit
Test conditions: 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
6ILKG_VSF_OFF VSF input leakage
Device OFF
-5
5
µA
7RPD_VSF
VSF pull-down resistance
Device ON
VSF regulator OFF or ON
1.5V<VSF<25V
Test condition: VSF = 25V
60
125
188
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
IPD_VSF_TOT = IPD_VSF +
RPD_VSF
Device ON
VSF regulator ON
Test conditions:
166
230
462
µA
Table 45. VSF regulator AC specifications
N°
Symbol
Parameter
Condition
Min
Typ
Max
Unit
1TON,VSF VSF turn on time
CVSF = 14 nF and IO_VSF=0
Measured from VSF_EN = 1 to
VSF inside regulation limits
--
100
µs



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