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L9177 датащи(PDF) 32 Page - STMicroelectronics

номер детали L9177
подробное описание детали  Peripheral on chip for low end engine control
PDF  49 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9177 датащи(HTML) 32 Page - STMicroelectronics

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Functional description
L9177
32/49
DocID17617 Rev 1
4.4.2
Data out
Status flag are sampled and sent out through DOUT pin at each R/W SPI operation. The
structure of the 24 bit word is described in Table 29. A three bits diagnosis is provided for
stepper motor driver, a two bit diagnosis for others drivers. VRS diagnosis is coded as '0'
means No Fault, while '1' means Fault. Over temperature warning is coded as '0' means No
Fault, while '1' means Fault.
The SPI default value is: all bits set to zero.
Data out structure
Table 29. Data out (DOUT) words content
DOUT0
DOUT1
DOUT2
DOUT3
DOUT4
DOUT5
DOUT6
DOUT7
INJ1 Diag0
INJ1 Diag1
INJ2 Diag0
INJ2 Diag1
O2H Diag0
O2H Diag1
RLY1 Diag0 RLY1 Diag1
DOUT8
DOUT9
DOUT10
DOUT11
DOUT12
DOUT13
DOUT14
DOUT15
RLY2 Diag0 RLY2 Diag1 RLY3 Diag0 RLY3 Diag1 LAMP Diag0 LAMP Diag1 TACH Diag0 TACH Diag1
DOUT16
DOUT17
DOUT18
DOUT19
DOUT20
DOUT21
DOUT22
DOUT23
VRS Diag
Thermal
Warning
Brdg1 Diag0 Brdg1 Diag1 Brdg1 Diag2 Brdg2 Diag0 Brdg2 Diag1 Brdg2 Diag2
Table 30. Two bits diagnosis (normal drivers)
Bit 1
Bit 0
Fault
0
0
No Fault
0
1
Short to Ground (OFF)
1
0
Open Load (OFF)
1
1
Overcurrent (ON)
Table 31. Three bits diagnosis (bridge stage)
Bit 2
Bit 1
Bit 0
Fault
0
0
0
No Fault
0
0
1
Short to Ground (OFF)
1
0
1
Short to VBAT (OFF)
0
1
0
Open Load (OFF)
0
1
1
Overcurrent (ON)



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