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L9779WD-SPI Datasheet(PDF) 8 Page - STMicroelectronics

Part # L9779WD-SPI
Description  Smart reset function
PDF  141 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9779WD-SPI Datasheet(HTML) 8 Page - STMicroelectronics

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L9779WD-SPI
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Figure 46.
Stepper motor driver: H-bridge1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Figure 47.
Stepper motor driver: H-bridge2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Figure 48.
Stepper motor driver “off” diagnosis time diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Figure 49.
Stepper motor driver diagnosis I-V relationship diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Figure 50.
Open load detection during “on” phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Figure 51.
Open load detection during “on” phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Figure 52.
Short to GND detection during “on” phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Figure 53.
ISO serial line (K-LINE) circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Figure 54.
ISO serial line switching waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Figure 55.
ISO serial line: short circuit protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Figure 56.
CAN transceiver diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Figure 57.
CAN transceiver switching waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Figure 58.
CAN transceiver test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Figure 59.
Flying wheel interface circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Figure 60.
Auto adaptative hysteresis diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Figure 61.
VRS interface block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Figure 62.
Auto-adaptive time filter (rising edge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Figure 63.
Adaptive filter function when the SPI bit are 00 or 01 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Figure 64.
Adaptive Filter Function when the SPI bit are 10 or 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Figure 65.
Variable reluctance sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Figure 66.
VRs typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Figure 67.
Hall effect sensor configuration 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Figure 68.
Hall effect sensor configuration 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Figure 69.
Diagnosis test diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Figure 70.
WDA block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Figure 71.
Monitoring cycle diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Figure 72.
4-bit Markov chain diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Figure 73.
Timing characteristics diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Figure 74.
HiQUAD-64 package outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138



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