m63024 Mitsumi Electronics, Corp., m63024 Datasheet - Page 14

• Manufacturer Part Number: m63024
• Description: Spindle Motor And 5ch Actuator Driver
• Manufacturer: Mitsumi Electronics, Corp.

Phase delay circuit at SLIDE
FG function at SPINDLE drive
Output current setting at SLIDE
Phase delay circuit is built in the IC to detect an output spike current, when the motor current
direction is switching.
bridge f or 3usec.
The FG terminal outputs the square pulse signal sy nchronizing with the Hall inputs timing.
And, the FG terminal is open-collector output.
In this IC, since output tranjister is NPN-ty pe tranjister, motor coil current (Io) is larger than
sensing resistance current about 10mA (TYP.) according to base current of output tranjister.
Theref ore please design output current with consisting these base current.
In switching the motor current direction, Phase delay circuit switch-of f all output trangister of H -
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SPINDLE MOTOR AND 5CH ACTUATOR driveR
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M63023/024/026/027FP
MITSUBISHI SEMICONDUCTORS
REV010307