M56784 Mitsubishi, M56784 Datasheet
M56784
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M56784 Summary of contents
Page 1
... DESCRIPTION The M56784FP is a semiconductor integrated circuit in order to drive the spindle motor. FEATURES Large power dissipation (Power Package). 3.3V DSP available. The supply voltage with wide range. High motor drive current. Low saturation voltage. (typical 1.2V at load current 500mA) Motor current control for both motor torque directions. ...
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... Free Air Free Air MITSUBISHI <CONTROL / DRIVER IC> M56784FP SPINDLE MOTOR DRIVER Symbol Function — Bias for Hall Sensor 1 5V supply voltage CC The reference voltage for EC Motor speed control 2 12V supply voltage CC Motor supply voltage ...
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... HIGH. pin [MODE1], pin [MODE2], pin [MODE3 and pin [MODE4] input voltage 7 when they are LOW. Io current = 1mA M56784FP SPINDLE MOTOR DRIVER Units Limits Units Typ. Min. Max. — 0 100 A — ...
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... J-type board 75 100 125 150 ) MITSUBISHI <CONTROL / DRIVER IC> M56784FP SPINDLE MOTOR DRIVER The relationship between the EC-ECR (the difference between EC (<control voltage> and ECR <reference voltage>) and the torque is shown in Figure 1. The current gain is 0.6A/V (at sensing resistor: 0.5ohm) in both torque directions, and the dead zone is from 0mV to 40mV ...
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... Then, the IC bias current will be a slight current (please refer to the electrical characteristics), and the hall bias output will be cut off. When the will work. MITSUBISHI <CONTROL / DRIVER IC> M56784FP SPINDLE MOTOR DRIVER U V Outer loator U ...
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... When the motor rotates reversely in stop mode, it will be high. The RDS pin is pulled- Hu+ Hu- Hv+ Hv- FG-amp + - + - Hall sensor-amp EC-ECR Hu+ Hw+ Hu+ REVERSE Comparator Hystelesis High RDS Low High FG Low MITSUBISHI <CONTROL / DRIVER IC> M56784FP SPINDLE MOTOR DRIVER 1 by internal resistor (typ.10kohm). CC Hw+ Hw- Hv+ ...
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... If you can only get one port, you can control only the MODE2. At this time, you can control the two kinds of BRAKING MODE [commutated short or reverse] on condition that the MODE1 is set to be LOW or OPEN. MODE1 HIGH SHORT BRAKING (2) ALL SHORT BRAKING OUTPUT OPEN [only inertia] M56784FP SPINDLE MOTOR DRIVER internal resistor [typ. CC ...
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... MODE2 LOW MODE1 LOW BRAKING MODE +1A MOTOR CURRENT FORWARD CURRENT REVERSE TORQUE CURRENT MOTOR STOP -1A M56784FP SPINDLE MOTOR DRIVER ALL REVERSE SHORT BRAKING BRAKING +600mA MOTOR -600mA STOP (Vbemf-Vd-Vsat diode voltage Vsat ; npn transistor saturation voltage Ra ; motor inner resistance ...
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... Load current (mA) = 5V) CC 0.29 0.35 0.47 This device can use this voltage value due to motor drive. 0.49 0.38 0.32 400 600 800 Load current (mA) MITSUBISHI <CONTROL / DRIVER IC> M56784FP SPINDLE MOTOR DRIVER 12V 5V Top side saturation voltage 1.05 1.18 0.76 0.62 Bottom side saturation voltage 1000 1200 Top side ...
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... HB terminal voltage and Hall current characteristics. (Condition : Vcc = 4.4V – 7V) 1.6 1.4 1.2 1.0 0.85 0.8 0.6 0.4 0 Hall current (mA) MITSUBISHI <CONTROL / DRIVER IC> SPINDLE MOTOR DRIVER M56784FP ...
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... Hall bias resistor 104 Control PWM1 Reference PWM2 MITSUBISHI <CONTROL / DRIVER IC> SPINDLE MOTOR DRIVER com control BRAKING MODE SELECT Motor current sense resistor and M56784FP 12V Motor 10uF power supply 104 104 104 Start / Stop 0.5 5V Power Supply 10uF ...