Datasheet > TC78H670FTG

TC78H670FTG

更新时间： 2023-12-20 18:45:58

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TC78H670FTG 数据手册

TC78H670FTG

8. Functional Description 1 (for CLK-IN mode)

CLK Function

Each up-edge of the CLK signal will shift the motor’s electrical angle per step.

CLK pin input

Function

Up-edge

Shifts the electrical angle per step

Down-edge

(State of the electrical angle does not change)

ENABLE Function

The EN pin controls the ON and OFF of the stepping motor outputs. Motor operation starts and stops by setting H and L

to the EN pin.

(When the EN pin is set to L (OFF), all of the MOSFETs turn off and become high impedance (hereafter, Hi-Z).)

Setting the EN pin to L, and avoiding the motor to operate during VM power-on and power-off (i.e., outside of the operating

voltage range) is recommended. Then, switch the EN pin to H after the VM reaches the target voltage and becomes stable.

The EN pin should input High level through a resistor.

EN pin input

Function

OFF (Hi-Z)

ON (Normal operation mode)

STBY

Internal processing time

500μs(max)

CW-CCW Function

CW-CCW pin controls the rotation direction of the motor.

CW-CCW pin input

Function

Counter clockwise operation (CCW)

Clockwise operation (CW)

2021-02-09

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