M63016FP Просмотр технического описания (PDF) - MITSUBISHI ELECTRIC
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M63016FP Datasheet PDF : 20 Pages
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MITSUBISHI SEMICONDUCTORS
M63016FP
Spindle Motor AND 4CH ACTUATOR Drive IC
Spindle channel
The relationship between the differential voltage between Spin and REF
and the torque is shown in right Figure. The voltage gain[Gvo] is 1.0[V/V].
The current gain[Gio] is 20A/V (at sensing resistor : 0.5 ohm,and
R1= ,R2=0ohm) in forward torque directions, and the dead zone is from
0mV to 80mV (at R1= ,R2=0ohm)
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 VM1(12V) RSP is 0.5Vat forward and 0.3V at reverse
in case of SELECT6, SELECT7,SELECT8 the differential voltage of VM1
(12V) RSP is 0.3Vat forward. Therefore ,this mode is available in order
to reduce a temperature under acceleration.
Therefore current-gain-control and current-limit of this IC is determined with
sensing resister value, and more detail control can be determined with
setting a gain-resister outer this IC as below.
current limit
lim1F
lim2F
Dead zone
Forward torque
Gio
Gio
Reverse torque
CTL-REF (V)
Dead zone
lim1R
current limit
The example of current-gain and current-limit of Spindle.
RS Ilim1F Ilim2F Ilim1R
[ohm] [A]
[A]
[A] R1=
R2=0 ohm
Gio* [A/V]
R1=R2
0.50 1.00 0.68 0.68
2.00
1.00
0.75 0.66 0.45 0.45
1.33
0.66
1.00 0.50 0.34 0.34
1.00
0.50
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.
R1=2X R2
0.66
0.44
0.33
Gio*= R1 / [(R1+R2)XRs] [A/V]
VM1
5V
Rh
Rs
RSP
HB
R2
HU+
CTL
Spin
HU-
HV+
M
R1
HV-
HW+
1.65v
REF
HW-
U
V
GND W
MITSUBISHI ELECTRIC CORPORATION
9 20
REV.011126
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