FAN8725 Datasheet | Fairchild Semiconductor

Features mon - - - - Built-in thermal shutdown circuit (TSD) Built-in power save circuit 3 Independent voltage source Corresponds to 3.3V or 5V DSP Description The FAN8725 is a monolithic IC suitable for a 3-phase BLDC spindle motor driver and 5-ch motor drivers which drives the focus actuator, tracking actuator, loading motor, stepping motor driver of the CD-media systems. Spindle - - - - - Built-in hall bias Built-in FG signal output circuit Built-in rotational direction detecting circuit Built-in protection circuit for reverse rotation Built-in short brake circuit 48-QFPH-1414 BTL (5-channel) - - - - Built-in 5-CH balanced transformerless (BTL) driver Built-in Level shift circuit Independent voltage sources VM2 = CH1,CH2 / VM3 = CH3, CH4 ,CH5 Typical Applications - - - - - - pact disk ROM (CD-ROM) pact disk RW (CD-RW) Digital video disk ROM (DVD-ROM) Digital video disk RAM (DVD-RAM) Digital video disk Player (DVDP) Other pact disk media Ordering Information Device FAN8725 Package 48-QFPH-1414 Operating Temp. - 35°C ~ +85°C Rev. 1.0.1 March. 2000. ©2000 Fairchild Semiconductor International FAN8725 (KA3025) Pin Assignments PGND3 37 SVCC2 OUT5 VREF ECR VM3 PC1 H1+ IN5...