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L9659 bảng dữ liệu(PDF) 42 Page - STMicroelectronics

tên linh kiện L9659
Giải thích chi tiết về linh kiện  Octal squib driver ASIC for safety application
PDF  51 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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L9659 bảng dữ liệu(HTML) 42 Page - STMicroelectronics

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Functional description
L9659
42/51
Doc ID 022048 Rev 2
SQP bit: Squib Pin to be tested during short to
battery/ground diagnostics
0 = SQBLx pin test
1 = SQBHx pin test
Bits D4
Used to disable IPD on all channels
0 = IPD active as indicated;
– Active for all channels except the one under test when
running Short to Battery/Ground and short between loops
Diagnostics and LS/HS FET test
– Active for all channels when running Stop Diagnostic,
Resistance Diagnostics, High Squib Resistance
Diagnostics, HSS Diagnostic and VRESx Diagnostics
1 = IPD disabled on all channels
Bits D3
AMC Bit Bit used for resistance measurement amplifier calibration.
Only valid when squib resistance diagnostics is selected,
otherwise this it will be ignored and a 0 will be reported in the
response
0 = No calibration (Normal squib resistance measurements)
1 = Calibration
For bits D2:D0
The following table shall be used for channel selection.
All other combinations for MOSI bits D2:D0 will produce an error response of 0xD000.
Note:
Except for short to battery /ground diagnostics and loop to loop test the state of IPD (D4) will
not affect the test.
Table 25.
Channel selection
Channel
Bit D2
Bit D1
Bit D0
0
0
0
0
1
0
0
1
2
0
1
0
3
0
1
1
41
0
0
51
0
1
61
1
0
71
1
1



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