This part is a kind of semiconductor called BD63610AEFV.

Function of this product has 36V Stepping Motor Driver.

Manufacturers : ROHM

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Some of the text within the PDF file :

Datasheet 36V Stepping Motor Driver BD63610AEFV ●General Description BD63610AEFV is a bipolar low-consumption driver that driven by PWM current. Rated power supply voltage of the device is 36 V, and rated output current is 0.8A. CLK-IN driving mode is adopted for input interface, and excitation mode is corresponding to FULL STEP mode, HALF STEP mode. In addition, the power supply may be driven by one single system, which simplifies the design. ● Features ■ Rated output current（DC）0.8A ■ Low ON resistance DMOS output ■ CLK-IN drive mode ■ PWM constant current (other oscillation) Built-in spike noise cancel function (external noise filter is unnecessary) ■ Full, half step functionality ■ Freely timing excitation mode switch ■ Normal rotation & reverse rotation switch [ ... ]

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