m56745fp Mitsumi Electronics, Corp., m56745fp Datasheet
m56745fp
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m56745fp Summary of contents
Page 1
... 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. ...
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... SPINDLE MOTOR DRIVER Function Conditions pin maximum input voltage 13 pin maximum input voltage 17 to pins 19 24 Free Air Free Air Limits Units Min. Typ. Max. 4.5 5.0 V 5.5 10.8 12.0 13 700 M56745FP Ratings Units 1.0 V 4.5 W 1.2 9.6 mW/˚C 150 ˚C -20 – +75 ˚C -40 – +125 ˚C ...
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... Rs=0.47 Load current (IHb) 10mA. Forward Torque 0.65A ECR -5 – -50mV Current limit Reverse Torque M56745FP SPINDLE MOTOR DRIVER Limits Unit Min. Typ. Max. 0 100 A pin GND. 14 pin GND. 3.8 6 1.5 2.4 ...
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... MITSUBISHI <CONTROL / DRIVER IC> 0.792 0.852 0.902 0.423 0.320 0.226 200 300 400 Load current 100 125 150 M56745FP SPINDLE MOTOR DRIVER Top side saturation voltage 0.955 This device can use this voltage value for motor drive. 0.523 Bottom side saturation voltage 500 (mA) ...
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... CI Control voltage 15 EC V/I converter Reference voltage 16 ECR MITSUBISHI <CONTROL / DRIVER IC> VM GND 13 120˚ MATRIX TSD I/I converter – + Vref M.Gnd M56745FP SPINDLE MOTOR DRIVER Motor power supply 12V Start/Stop 1 S/S Motor current sense Rnf 31 17 Vcc 5V Power Supply ...