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L9678P Datasheet(PDF) 200 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) 200 Page - STMicroelectronics

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Electrical characteristics
L9678P, L9678P-S
200/216
DS11626 Rev 9
15
VIL_ FENL
FENL low level
input voltage
-
-
-
0.8
16
IPU_ FENL
FENL pull up current
FENL = 0
-70
-45
-20
µA
14
VIH_SAF_CSx
SAF_CSx high level
input voltage
-
2
-
-
V
15
VIL_SAF_CSx
SAF_CSx low level
input voltage
-
-
-
0.8
-
16
IPU_SAF_CSx
SAF_CSx pull up current SAF_CSx = 0V
-70
-45
-20
µA
Table 56. Arming interface - DC specifications (continued)
N°
Symbol
Parameter
Condition
Min.
Typ.
Max.
Unit
Table 57. Arming interface - AC specifications
N°
Symbol
Parameter
Condition
Min.
Typ. Max. Unit
1
TARM
Sensor sampling period
-
475
500
525
µs
2
TACL_HI
ACL period
-
213
-
237
ms
3
TACL_LO
-
168
-
187
ms
4
TON_ACL_HI
ACL on-time
-
154
-
171
ms
5
TON_ACL_LO
-
114
-
126
ms
6
TVALID_EOL
Scrap validation
TACL and TON_ACL valid
-
3
-
-
cycles
7
TDIS_EOL
Scrap timeout
-
2 * TACL
ms
8
TPULSE_STRECH
Arming enable
pulse stretch time
-
-
-
0
ms
9
-
30
32
34
ms
10
-
242
270
ms
11
-
1934
2162
ms
12
TRISE_ARM
ARM rise time
80pF load, 20% to 80%
Internal Safing Selected
-
-
1.00
µs
13
TFALL_ARM
ARM fall time
80pF load, 20% to 80%
Internal Safing Selected
-
-
1.00
µs



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