bd63847 ROHM Co. Ltd., bd63847 Datasheet - Page 12

• Manufacturer Part Number: bd63847
• Description: Micro Step 36v Stepper Motor Drivers
• Manufacturer: ROHM Co. Ltd.

・Reset timing chart (FULL STEP, MODE0=L, MODE1=L, CW_CCW=L , ENABLE=H)
・CW_CCW Switch timing chart (FULL STEP, MODE0=L, MODE1=L, ENABLE=H)
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BD63847/63843EFV
IOUT(CH1)
IOUT(CH2)
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IOUT(CH1)
IOUT(CH2)
CW_CCW
OUT1A
OUT1B
OUT2A
OUT2B
If the terminal PS is input to L, the reset operation is done with regardless of other input signals when reset the translator
circuit while motor is working. At this time, IC internal circuit enters the standby mode, and makes the motor output
OPEN.
The switch of CW_CCW is reflected by the rising edge of CLK that comes immediately after the changes of the
CW_CCW signal. However, depending on the state of operation of the motor at the switch the motor cannot follow even if
the control on driver IC side is correspondent and there are possibilities of step-out and mistake step in motor, so please
evaluate the sequence of the switch enough.
OUT1A
OUT1B
OUT2A
OUT2B
CLK
PS
CLK
PS
①
①
CW
②
②
12/19
③
③
RESET
②
CCW
①
①
Technical Note
2010.4 - Rev.A
②