Part Number: DRV8824
Dear TI: My customer used DRV8824 for a step motor driver, there are output waveform in Aout and Bout, but the motor can't rotate.
DRV8824 peripheral circuit configuration: nReset, nSleep set to High, Mode, DIR, Decay Set to Low, Step is 50KHz 50% duty PWM. Fault pin is High.
Customer used another solution A4988, the motor can work normal. Please help to check what may cause the motor to fail to rotate?
1, Aout1 and Aout2 waveform:
2, AOUT1 and BOUT1 waveform:
3, STEP waveform:
Rick DuncanMotor Applications Team
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In reply to Rick Duncan:
In reply to Eric Shen42:
Hi Dick: The DRV8824 is connected to the motor at the wrong interface.
Now the motor has rotate.
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