m63024 Mitsumi Electronics, Corp., m63024 Datasheet - Page 10

• Manufacturer Part Number: m63024
• Description: Spindle Motor And 5ch 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 f orward torque directions, and the dead zone is
f rom 0mV to 80mV (at R1= ,R2=0ohm)).
f orward torque directions.And the limitation f unction gets on when the
dif f erential Voltage of VM2(12V)
Theref ore current-gain-control and current-limit of this IC is determined
with sensing resister v alue.
The example of current-gain and current-limit of SLIDE.
SLIDE channel
The relationship between the dif f erential Voltage between SLIN and
The coil current gain under the rev erse torque is the same with in
1.65V
CTL
[ohm]
0.50
0.75
1.00
Rs
R2
R1
Ilim [A]
1.00
0.66
0.50
REF
SL1IN
Rs
GND
RSL1
VM2
R1=
R2=0 ohm
RSL is 0.5V.
2.00
1.33
1.00
SL1+
SL1-
Gio*= R1 / [(R1+R2)XRs] [A/V]
Gio* [A/V]
R1=R2
M
Rev erse
Forward
1.00
0.66
0.50
(
10
SPINDLE MOTOR AND 5CH ACTUATOR driveR
1.65V
/
CTL
R2=2XR1
0.66
0.44
0.33
17)
R2
M63023/024/026/027FP
MITSUBISHI SEMICONDUCTORS
R1
SLIN -REF (V)
Reverse
Dead zone
current limit
REF
SL2IN
Gio
Rs
VM2
GND
RSL2
SL2+
SL2-
current limit
REV010307
Dead zone
Forward
M
Rev erse
Forward
Gio