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L9679P Datasheet(PDF) 258 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) 258 Page - STMicroelectronics

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Electrical characteristics
L9679P
258/272
DocID029275 Rev 1
9VIL_ARM
ARMx low level input
voltage
-
-
-
0.8
V
10
RPD_ARMx, x=1,2,3
ARM1,2,3 pull down
resistor
External safing selected
60
100
140
kΩ
11
VIH_FENL
FENL high level Input
Voltage
-2
-
-
V
12
VIL_FENL
FENL low level Input
Voltage
-
-
-
0.8
V
13
IPU_ARM4
ARM4 pull up current
ARM4 = 0V
external safing selected
-100
-75
-50
μA
14
VOH_PSINHB
PSINHB output high
voltage
ILOAD = -0.5 mA
Internal safing selected
VCC-0.60
-
VCC
V
15
VOL_PSINHB
PSINHB output low
voltage
ILOAD = 2.0 mA
Internal safing selected
0
-
0.4
V
16
RPD_PSINHB
PSINHB pull down
resistance
-
65
100
135
kΩ
17
VIH_PSINHB
PSINHB high level input
voltage
-2
-
-
V
18
VIL_PSINHB
PSINHB low level input
voltage
-
-
-
0.8
V
19
VIH_SAF_CSx
SAF_CSx high level input
voltage
-2
-
-
V
20
VIL_SAF_CSx
SAF_CSx low level input
voltage
-
-
-
0.8
21
IPU_SAF_CSx
SAF_CSx pull up current
SAF_CSx = 0 V to
VIH_SAF_CSx(min)
-70
-45
-20
μA
Table 64. Arming Interface – DC specifications (continued)
No
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Table 65. Arming interface – AC specifications
No
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
1TARM
Sensor sampling period
-
475
500
525
μs
2TACL_HI
ACL period time thresholds
-
213
-
237
ms
3TACL_LO
-
168
-
187
ms
4TON_ACL_HI
ACL on-time thresholds
-
154
-
171
ms
5TON_ACL_LO
-
114
-
126
ms
6TVALID_ACL
Scrap validation
TACL and TON_ACL valid
-
3
-
-
cycles
7TINVALID_ACL
Scrap invalid
TACL invalid
-
2
-
-
cycles
8TSCRAP_TIMEOUT Scrap timeout timer
-
520
550
580
μs



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