MITSUBISHI CONTROL / DRIVER IC M56745FP SPINDLE MOTOR DRIVER DESCRIPTION The M56745FP is a semiconductor integrated circuit designed for a single chip controller for CD-ROM spindle motor.
M56745FP has a both (forward and reverse) motor rotation control by the motor speed control terminal.
Also, this device includes a bias circuit for Hall Sensor, a current limit circuit and a thermal shut down function.
PIN CONFIGURATION (TOP VIEW) S/S 1 2 3 N.
C 4 5 36 35 34 33 32 31 30 29 28 GND 27 26 25 24 23 22 21 20 19 HwHw+ HvHv+ HuHu+ W V U Rs Rnf M.
GND FEATURES q The supply voltage with wide range.
(4.
5V to 13.
2V) q High motor drive current (1.
0A).
q Motor current control for the both motor rota...

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