M63016FP Просмотр технического описания (PDF) - MITSUBISHI ELECTRIC

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M63016FP

Spindle Motor AND 4CH ACTUATOR Drive IC

MITSUBISHI ELECTRIC  

MITSUBISHI SEMICONDUCTORS

M63016FP

Spindle Motor AND 4CH ACTUATOR Drive IC

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 20A/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) 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

current limit

Gio

Dead zone

Dead zone

CTL -REF (V)

Gio

SLIN

R1

R2

SLIN

CTL

OPIN- OPIN-

-

SLIN

2K

C1

R2

CTL

R1

OPIN-

+

10K

REF

VM23

Rs

current limit

Reverse

For obtaining the above mentioned characteristic,

it is necessary to set the REF input voltage range

as 1.0-3.3V(5VCC=5V conditions).

However,if 5VCC condition limit minimum value

(5VCC=4.5V conditions).

it is necessary to set the REF input voltage range

as 1.0V-2.8V.

RS L

SL+

forward

M

SL-

GND

Reverse

The example of current-gain and current-limit of Slide

RS

[ohm]

Ilim [A]

Gio* [A/V]

R1=R2

2XR1=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 X Rs [A/V]

MITSUBISHI ELECTRIC CORPORATION 10 20

10K ohm are built in the non-inverted terminal of input amplifier,

and 2K ohm are built in the inverted terminal.

In order to compensate input offset,

please set up external resistance so that synthetic resistance

is set to 8K ohm.

REV.011126

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