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L9680 데이터시트(PDF) 239 Page - STMicroelectronics

부품명 L9680
상세설명  Automotive advanced airbag IC for mid/high end applications
PDF  277 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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L9680 데이터시트(HTML) 239 Page - STMicroelectronics

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L9680
Electrical characteristics
276
16.9
ER CAP current generators and diagnostic
All electrical characteristics are valid for the following conditions unless otherwise noted:
-40 °C
 Ta  +95 °C, VINGOOD0  VIN  35 V, 8 V ≤ ERBOOST.
Table 38. ER CAP current generators and diagnostic DC specifications
No
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
1IER_CHARGE
ER charge current
ERBOOST
 8 V
60
65
70
mA
ERBOOST – VER
 2 V
2IER_DISCHARGE_LOW
ER discharge low level
current
VER
 6V
60
65
70
mA
3IER_DISCHARGE_HIGH
ER discharge high level
current
VER
 8V
589
640
691
mA
4RDSON_ERCHARGE
ER charge power
resistance
(VERBOOST - VVER)/IVER
IVER = 10mA
--
20
Ω
5
VERRANGE
VER voltage measurement
range
-
20
-
35
V
6
VERACC
VER voltage measurement
accuracy
VERRANGE
-8
-
+8
%
7
ERCAPRANGE
Energy reserve capacitor
measurement range
Design Info
-
-
10
mF
8
ERCAPACC
Energy reserve capacitor
measurement accuracy
VERMIN = 2 V
-7
-
+7
%
9
ERCAP_ESRRANGE
Energy reserve capacitor
ESR measurement range
-
200
-
600
mΩ
10
ERCAP_ESRACC
Energy reserve capacitor
ESR measurement
accuracy
All errors included
except the offset one
(OFFER_ESR)
-20
+20
%
11
GER_ESR
Energy Reserve Capacitor
ESR Measurement Gain
-
-13%
3
+13%
V/V
12
OFFER_ESR
Energy Reserve Capacitor
ESR Measurement Offset
Design Info
70
-
160
mΩ
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



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