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L9680 데이터시트(PDF) 258 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
Logo STMICROELECTRONICS - STMicroelectronics

L9680 데이터시트(HTML) 258 Page - STMicroelectronics

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Electrical characteristics
L9680
258/277
DocID029257 Rev 1
4RRSU
RSU output resistance
From IRSU = -4 mA to -65 mA
3
-
9.5
5ISTB_TH
Static reverse current into
SATBUCK or
SYNCBOOST pin
(VSUPPLY)
VRSUx > VSUPPLY + VRSU_STB
0.0
-
10
mA
6VRSU_STB
Output short to battery
threshold
-
10.0
-
100
mV
7IOCTH_PSI5
Over current detection
threshold
Interface disabled after
TFLT_OCTH_PSI5
-120
-
-66
mA
8ILIM_PSI5
Output current limit
IRSUx
-130
-
-80
mA
9
ILIM_OC_PSI5
Difference between current
limitation and OC threshold
ABS(ILIM_RSU) - ABS(IOCTH_RSU)
10
-
-
mA
10
IBO
Base current
Default value
-15%
-15
+15%
mA
11
ILKGG
Trigger point for fault
current detection
To ground; detected by IB
-50.4
-42
-35
mA
12
ILKGB
To battery; detected by IB
-3.5
-
-1
13
IOL
Output open load detection
threshold
VRSUx = open
ILKGB
(min)
-
ILKGB
(max)
mA
14
DACRES
DAC resolution
-
-
10
-
Bit
15
ILSB
LSB current
Design Info
-
93.75
-
μA
16
Vt2
Sync pulse amplitude
IRSU = 4 - 35 mA
Referred to VRSUx voltage
before sync pulse
3.8
-
-
V
17
VSYNCDROP
Sync drop-out voltage
VSYNCBOOST - VRSUx
1-
-
V
18
ILIM_SYNC_LS
Sync pulse current limit
(LS driver)
-
50
-
80
mA
19
ILIM_SYNC
Static current limitation for
each transceiver output
RSUx
During sync
pulse generator VRSUx=GND
-240
-
-120
mA
20
C1
Capacitor on RSUx
Regulator
22 nF nominal
Design Info
13
-
-
nF
21
RE2
RSU damping resistance
Design info
-
2.5
-
Ω
22
C2
ECU pin capacitance
5 nF nominal
Design Information, not tested
4-
6
nF
23
-
Total number of sensors
connected to bus
Design info
1
-
3
-
Table 61. PSI-5 satellite transceiver - DC specifications (continued)
No
Symbol
Parameter
Conditions
Min
Typ
Max
Unit



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