M63015FP 查看數據表（PDF） - MITSUBISHI ELECTRIC

零件编号

产品描述 (功能)

生产厂家

M63015FP

SPINDLE MOTOR AND 4CH ACTUATOR DRIVER

MITSUBISHI ELECTRIC  

MITSUBISHI SEMICONDUCTOR (LSI)

M63015FP

SPINDLE MOTOR AND 4CH ACTUATOR DRIVER

q Focus/tracking channel

The focus and tracking channel is the current feedback control

drive of MITSUBISHI original.The focus and tracking is the same

composition.

The relationship between the differential voltage between FOIN

and REF and the output current is shown in right Figure.

The voltage gain is 0.4 [V/V].Therefore, the current gain is 0.8[A/V]

in case of the sensing resistor is 0.5 ohm.

The maximum range of output swing is limited around 7.5 volts,in

case of VM4 is above 10 volts.

FOIN

REF

2.5R

2.5R

VM4

R

R

R

FO-

R

Rs

R

RFO

Coil

R

FO+

+

VM4

2

IL=Vrs/Rs

FO-

Rs

RFO

Coil

FO+

Coil

current [A]

0

IL

FOIN - REF (V)

Gio=1.0A/V

at Rs=0.33 ohm

-

Output

voltage [V]

FO+

Vrs

Vrs=(RFO - [FO-])

=0.4 X (FOIN - REF)

Coil

Vcoil

FOIN - REF (V)

RFO

Rs

FO-

Share Link: