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L6223 Datasheet(PDF) 14 Page - STMicroelectronics

Part # L6223
Description  DMOS PROGRAMMABLE HIGH SPEED UNIPOLAR STEPPER MOTOR DRIVER
PDF  33 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6223 Datasheet(HTML) 14 Page - STMicroelectronics

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Figure 14: Peak current 2Ip crossing the sense resistor RS in Full step drive. The phase sequence CCW
is: AB
→BA →AB → BA (4 Full Steps, 2 phase ON)
Figure 15: Peak current (2Ip/2 phase ON) and reduced peak current (1.4Ip/1 phase ON) crossing the sense
resistor RS in Half step drive. The phase sequence is: A
→AB → B → BA → A →AB →B → BA
(8 Half Steps, 1 phase ON and 2 phases ON alternatively)
Figure 16: Typical Application Circuit using 2 devices (Paralleled configuration): the max peak current
capability is of 2A/phase (RS = 0.25
Ω)
L6223
14/33



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