FAN8725 Datasheet, PDF (1/20 Pages) Fairchild Semiconductor – Spindle Motor and 5-Channel Motor Driver

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FAN8725 (KA3025)
Spindle Motor and 5-Channel Motor Driver
Features
Common
• Built-in thermal shutdown circuit (TSD)
• Built-in power save circuit
• 3 Independent voltage source
• Corresponds to 3.3V or 5V DSP
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
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
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.
48-QFPH-1414
Typical Applications
• Compact disk ROM (CD-ROM)
• Compact disk RW (CD-RW)
• Digital video disk ROM (DVD-ROM)
• Digital video disk RAM (DVD-RAM)
• Digital video disk Player (DVDP)
• Other compact disk media
Ordering Information
Device
Package
FAN8725 48-QFPH-1414
Operating Temp.
−35°C ~ +85°C
©2000 Fairchild Semiconductor International
1
Rev. 1.0.1
March. 2000.