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L9680 Datasheet(PDF) 262 Page - STMicroelectronics

Part # L9680
Description  Automotive advanced airbag IC for mid/high end applications
PDF  277 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9680 Datasheet(HTML) 262 Page - STMicroelectronics

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Electrical characteristics
L9680
262/277
DocID029257 Rev 1
16.18.2
WSS interface
Table 63. WSS sensor - DC specifications
No
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
1C1
RSU load capacitance
10nF nominal, Design Info
6
-
-
nF
2VRSU_MAX
RSUx Max output voltage
(internal regulation,
VSATBUCK=VSYNCBOOST)
--
11
V
3RRSU
Output resistance
From IRSU=-4mA to -35mA
4
-
12
Ω
4IBO
Base Current
Auto Adaptive option
(default value)
+15%
-7
-15%
mA
5a
ITH1
7mA / 14mA detection
Fixed threshold option
-25 °C ≤ Tj ≤ +150 °C
guaranteed by
design/characterization
+15%
-9.8
-15%
mA
5b
Fixed threshold option
-40 °C ≤ Tj ≤ +150 °C
+20%
-9.8
-20%
mA
6ITH2
14mA / 28mA detection
Fixed threshold option
+15%
-19.6
-15%
mA
7a
ITHOPEN
Open sensor detection
RSUx OPEN
-25 °C ≤ Tj ≤ +150 °C
guaranteed by
design/characterization
-4.5
-
-0.2
mA
7b
RSUx OPEN
-40 °C ≤ Tj ≤ +150 °C
-5.5
-
0
mA
8ITHGND
Leakage to GND threshold VRSUx= GND
13.2
15
17.1
mA
9IOCTH_WSS
Over Current Detection
Threshold
output disabled after
TFLT_OCTH_WSS
-65
-
-38
mA
10
ILIMTH_WSS
Output Current Limit
-
-65
-
-40
mA
11
ΔILIM_OC_WSS
Difference between
Current Limitation and OC
Threshold
ILIM_RSU - IOC_RSU
1-
-
mA
12
VRSU_STB
Output Short to Battery
Threshold
10
-
100
mV
13
ISTBTH
Static reverse current into
SATBUCK or
SYNCBOOST pin
(V_supply)
VRSUx > V_supply + VRSUxSTB
0.0
-
10
mA
14
VOH_WS
WSx Output Voltage
ILOAD = -1mA
VCC-
0.5
-
VCC
V
15
VOL_WS
ILOAD = 1mA
-
-
0.4
V
16
ILKG_WS
WSx Output Leakage
Tri-state leakage
-10
-
10
μA



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