m63010fp Mitsumi Electronics, Corp., m63010fp Datasheet - Page 10

• Manufacturer Part Number: m63010fp
• Description: Spindle Motor Actuator Driver
• Manufacturer: Mitsumi Electronics, Corp.

REF and the torque is shown in right Figure. The voltage gain[Gvo] is
1.0 [V/V]. The current gain is 2.0[A/V ](at sensing resistor : 0.5 ohm and
R1= ,R2=0ohm) in forward torque directions, and the dead zone is from
0mV to 60mV (at R1= ,R2=0ohm).
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.
Preliminary
SLIDE channel
The relationship between the differential voltage between SLIN and
The coil current gain under the reverse torque is the same with in
The example of current-gain and current-limit of SLIDE.
Rs [ ]
1.65v
0.50
0.75
1.00
CTL
R2
Ilim [A]
1.00
0.66
0.50
R1
R1=
R2=0 ohm
REF
SLIN
2.00
1.33
1.00
Rs
VM23
RSL
GND
Gio*= R1 / [(R1+R2)•Rs] [A/V]
SL+
SL-
Gio* [A/V]
R1=R2
1.00
0.66
0.50
SPINDLE MOTOR AND 4CH ACTUATOR DRIVER
(
10
M
Reverse
Forward
/
R1=2•R2
0.66
0.44
0.33
16)
MITSUBISHI SEMICONDUCTORS
SL*IN -REF (V)
Reverse
Dead zone
current limit
M63010FP
Gio
current limit
Dead zone
REV990118
Forward
Gio