W49 Datasheet, PDF (7/11 Pages) Ceramate Technical – 3-Phase Motor Driver for CD-ROMs

WAFER WIN
W49
3-Phase Motor Driver for CD-ROMs
FCircuit operation
(1) Hall input to coil output
The phase relationship between the Hall input signals and the output current and voltage is shown in Fig.9. The motor
position data input via the Hall pins is amplified by the Hall amplifier, and formed into waveforms by the matrix
block.These signals are input to the output driver that supplies the drive current to the motor coils.
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
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Page 7 of 11
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Rev 1.1 May.9, 2002