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L9779WD Datasheet(PDF) 78 Page - STMicroelectronics

No. de pieza L9779WD
Descripción Electrónicos  Multifunction IC for engine management system
PDF  170 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9779WD Datasheet(HTML) 78 Page - STMicroelectronics

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L9779WD
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DocID027452 Rev 5
Figure 46. Stepper motor operation diagram
The writing of DIR bit and PWM bit cannot be done in the same time, at least two
consecutive MSC 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 MSC frames are necessary. (If done it is supposed that only the EN bit has
been received).
Table 32. H-bridge1 configurable power stages OUT [21 to 24]
H-bridge1
Comment
Nominal
current
Ron max
Switch off
current
(min.)
Clamping
(typ.)
OUT21
High-side P-Ch
0.6 A
1.5 Ω
1 A
N/A
OUT22
Low-side N-Ch
0.6 A
1.5 Ω
1 A
45 V



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