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L9679E датащи(PDF) 48 Page - STMicroelectronics

номер детали L9679E
подробное описание детали  Automotive battery cut-off circuit and airbag system expansion IC
PDF  127 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9679E датащи(HTML) 48 Page - STMicroelectronics

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LPDIAGREQL
Loops diagnostic configuration command register for low
level diagnostic
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
MISO
0
0
0
0
RES_MEAS_CHSEL[3:
0]
LEAK_CHSEL[3:0]
ID:
38
Type:
R/W
Read:
3800
Write:
0070
POR
WSM
SSM
[15]
0
0
0
DIAG_LEVEL: Diagnostic mode selector
Updated by SSM_RESET or SPI write
0: low level mode
1: N/A - see description below
[14]
0
0
0
ISRC_CURR_SEL: Selection of ISRC current value
0: 40 mA
1: 8 mA
[13]
0
0
0
PD_CURR: Pull down current control
Updated by SSM_RESET or SPI write
0: Request OFF only for channels connected to VRCM or ISINK or ISRC, ON for all other
channels
1: Request OFF for all channels
[12:11]
00
00
00
ISRC [1:0]: High side current source for channel selected in RES_MEAS_CHSEL[3:0]
Updated by SSM_RESET or SPI write
00: OFF
01: ON 40 mA/ 8 mA current for channel selected in RES_MEAS_CHSEL, OFF on all other
channels
10: ON bypass current for channel selected in RES_MEAS_CHSEL, OFF ON all other channels
11: ON ISRC 40mA or 8mA current for channel selected in RES_MEAS_CHSEL and connect the
SRM Differential Amplifier to the other squib/pyroswitch channel of the selected channel pair
[10]
0
0
0
ISINK: Low side current sink control (max 50 mA)
Updated by SSM_RESET or SPI write
0: All channels OFF
1: ON for channel selected by RES_MEAS_CHSEL[3:0], OFF on all other channels
L9679E
SPI interface
DS12485 - Rev 8
page 48/127



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