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L9779WD-SPI 데이터시트(PDF) 69 Page - STMicroelectronics

부품명 L9779WD-SPI
상세설명  Smart reset function
PDF  141 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9779WD-SPI 데이터시트(HTML) 69 Page - STMicroelectronics

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L9779WD-SPI
Functional description
140
Figure 45. Stepper motor operation diagram
The writing of DIR bit and PWM bit cannot be done in the same time, at least two
consecutive SPI frames are necessary.(if done the stepper will move one step in the old
direction).
The writing of EN bit and PWM bit cannot be done in the same time, at least two
consecutive SPI frames are necessary. (If done it is supposed that only the EN bit has been
received).
Table 30. Half bridge 1
H-bridge1
Comment
Nominal
current
Ron max
Switch off
current
(min.)
Clamping
(typ.)
OUTA
High-side P-Ch
0.6 A
1.7
1 A
N/A
Low-side N-Ch
0.6 A
1.5
1 A
45 V



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