M63013 データシートの表示（PDF） - Mitsumi

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M63013

SPINDLE MOTOR AND 4CH ACTUATOR DRIVER

Mitsumi 

Preliminary

MITSUBISHI SEMICONDUCTORS

M63013FP

SPINDLE MOTOR AND 4CH ACTUATOR DRIVER

SLIDE channel

The relationship between the differential voltage between SLIN and REF

and the torque is shown in right Figure. The voltage gain[Gvo] is 1.0 [V/V].

The current gain is 2.0A/V (at sensing resistor : 0.5 ohm and R1=R2) in

forward torque directions, and the dead zone is from 0mV to 60mV (at

R1=R2=16kohm).

The coil current gain under the reverse torque is the same with in forward

torque directions.And the limitation function gets on when the differential

voltage of VM23(12V) to RSL is 0.5V.

Therefore current-gain-control and current-limit of this IC is determined with

sensing resister value.In the input part,built-in an inverted amplifier. It is

possible to control more detail by setting external circuit.

Forward

Gio

Dead zone

current limit

Dead zone

CTL -REF (V)

Gio

SLIN

R1

R2

CTL

OPIN-

SLIN

C1

R2

CTL

R1

OPIN-

SLIN

OPIN-

-

2K

+

10K

REF

current limit

Reverse

VM23

Rs

RSL

SL+

SL-

GND

Forward

M

Reverse

The example of current-gain and current-limit of SLIDE.

Rs [Ω]

Ilim [A]

Gio* [A/V]

R1=R2

2•R1=R2

0.50

1.00

0.75

0.66

1.00

0.50

2.00

1.00

1.33

0.66

1.00

0.50

Gio*= R1 / R2•Rs [A/V]

(10 / 17)

REV990607

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