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L9679P 데이터시트(PDF) 233 Page - STMicroelectronics

부품명 L9679P
상세설명  Automotive advanced airbag IC for mid/high end applications
PDF  272 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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L9679P 데이터시트(HTML) 233 Page - STMicroelectronics

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L9679P
Electrical characteristics
271
17.10
ER switch
All electrical characteristics are valid for the following conditions unless otherwise noted:
-40 °C
 Ta  +95 °C, VINGOOD0  VIN  35 V.
13
TJSD_ERBST
ER charge thermal
shutdown
-
150
175
190
°C
14
THYS_TSDERBST
-
5
10
15
°C
15
VVER_VBATMON_TH
Voltage difference
between VER and
VBATMON to activate the
ER Discharge in passive
mode
VER - VBATMON
1.6
2.2
2.5
V
Table 38. ER CAP current generators and diagnostic DC specifications (continued)
No
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Table 39. ER CAP current generators and diagnostic AC specifications
No
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
1TON_ERCAP
Energy reserve capacitor
charge-up time
CVER  10mF nominal,
BST33V = 0, Design Info
--
4
s
2TESR_DIAG
ER CAP ESR diagnostic
duration
Total duration time from SPI
command to ADC results
availability
-5%
225
+5%
μs
3
TFLT_TSD_ERCHARGE
Thermal shutdown filter
time
--
-
10
μs
Table 40. ER Switch DC specifications
No
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
1RDSON_ERSW
Power switch resistance
-
0.5
-
3
Ω
2ILIM_ERSW
ER switch current limit
-
608
810
980
mA
3VER_SW_OV_TH
ER switch Over Voltage
threshold
ER switch turned off when
VIN > VER + VER_SW_OV_TH
10
-
200
mV
4TJSD_ERSW
Thermal shutdown
-
150
175
190
°C
5THYS_TSDERSW
-
5
10
15
°C
Table 41. ER Switch AC specifications
No
Symbol
Parameter
Conditions
Min
Max
Unit
1TON_ERSW
ER turn-on time (time to
reach either RDSON_ERSW or
ILIM_ERSW)
CVIN = 10 μF-
-
5
μs



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