This part is a kind of semiconductor called BA6908F.

Function of this product has Single-phase full-wave motor driver for fan motor.

Manufacturers : Rohm

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Some of the text within the PDF file :

BA6908F Motor driver ICs Single-phase full-wave motor driver for fan motor BA6908F BA6908F is a single phase full-wave motor driver for fan motor corresponding to 5V and 12V. Switching noise is reduced by soft switching drive. This IC has lock detection and automatic restart functions as motor protection function. zApplications Motor drivers for fan motors zFeatures 1) Single-phase full-wave drive system. 2) Built-in power transistor. 3) Soft switching drive. 4) Lock detection and automatic restart circuit. 5) Thermal shut-down circuit. 6) Hall signal output. zAbsolute maximum ratings (Ta=25°C) Parameter Supply voltage Power dissipation Operating temperature Storage temperature Output current Hall signal output current Output voltage Hall signal output voltage Junction temperature Sym [ ... ]

BA6908F PDF Datasheet Download