M56784FP Mitsumi Electronics, Corp., M56784FP Datasheet
M56784FP
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M56784FP Summary of contents
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... 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 M56784FP SPINDLE MOTOR DRIVER Function — Bias for Hall Sensor 1 5V supply voltage The reference voltage for EC Motor speed control 2 12V supply voltage Motor supply voltage GND Reverse torque mode select 1 ...
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... HIGH. 36 pin [MODE1], 37 pin [MODE2], 6 pin [MODE3] and 7 pin [MODE4] input voltage when they are LOW. Io current = 1mA M56784FP SPINDLE MOTOR DRIVER Units Limits Units Typ. Min. Max. — 0 100 A — ...
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... For example, using an 1 layer glass epoxy resin board, the IC’s power dissipation is 2.9W at least. And it comes to 4.1W by using an improved 2 layer board. The information of the type board is shown in the board information. 100 125 150 ) M56784FP SPINDLE MOTOR DRIVER ...
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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. M56784FP SPINDLE MOTOR DRIVER U Outer loator U ...
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... When the motor is spinning forward, the RDS pin output will be low. When the motor rotates reversely in stop mode, it will be high. The RDS pin is pulled- Hu+ Hu- Hv+ Hv- Hw Hall sensor-amp EC-ECR REVERSE Hw+ Hu+ Hv+ Comparator Hystelesis High RDS Low High FG Low M56784FP SPINDLE MOTOR DRIVER 1 by internal resistor (typ.10kohm). CC Hw- ...
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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 ALL BRAKING SHORT MODE BRAKING +1A MOTOR CURRENT FORWARD CURRENT REVERSE TORQUE CURRENT MOTOR STOP -1A M56784FP SPINDLE MOTOR DRIVER REVERSE 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 0.32 600 800 1000 Load current (mA) M56784FP SPINDLE MOTOR DRIVER = 5V) CC Top side saturation voltage 1.05 1.18 0.76 0.62 Bottom side saturation voltage 1200 Top side 0.62 saturation voltage 0.83 0.76 0.62 Bottom 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 0 to 1.5 10uF + + - Motor current sense resistor and M56784FP 12V Motor power supply 104 104 104 Start / Stop 0.5 5V Power Supply 10uF ...