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參數(shù)資料
| 型號： | AMC5902 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 6CH Motor Driver for CD-ROM, DVD-ROM |
| 中文描述： | 6路電機驅(qū)動器為CD - ROM，DVD - ROM光碟 |
| 文件頁數(shù)： | 8/14頁 |
| 文件大小： | 272K |
| 代理商： | AMC5902 |
AMC D
OC
. #: AMC5902_B
March 2004
AMC5902
Copyright
2003, 2004 ADD Microtech Corp 8 www.addmtek.com
6CH Motor Driver for
CD-ROM, DVD-ROM
APPLICATION INFORMATION
Spindle channel
The spindle motor torque is controlled by the differential voltage of SPIN and VREF. The voltage gain, A
V_SP
,
is 1.0(V/V).
The limitation function starts to take effect when the differential voltage of VCC1 and CSSP is over 0.47V.
Current gain is equal to A
V_SP
/ R
SP.
Slide channel
The slide motor torque is controlled by the differential voltage of IN1SL (IN2SL) and VREF. The voltage gain, A
V_SL
,
is 0.5(V/V).
The limitation function starts to take effect when the differential voltage of VCC3-CS1(CS2) is over 0.47V.
Current gain is equal to A
V_SL
/ R
SL.
Gain expression
Spindle
1.0/Rsp
0.47/Rsp
Slide
0.5/Rs
L
0.47/Rs
L
Input-output gain Gm(A/V)
Output-limit current
Gain with the added resistor Gm(A/V)
15k/[(R1+15k)xR
SP
]
0.5x15k/[(R1+47k)xR
SL
]
CS1
(CS2)
IN1SL
(IN2SL)
R
SL
R1
GND
CNTL
VCC3
M
Reverse
Forward
SO1+
(SO2+)
SO1-
(SO2-)
CNTL-VREF (V)
HB
HU+
HU-
HV+
HV-
HW+
HW
-
U
V
W
CSSP
SPIN
R
SP
R1
PGND1,2
CNTL
VCC1
VCC2
Iop
V
I1
=150mV, V
I2
=110mV,
V
I4
=-150mV, V
I3
=-110mV
Gm(+)=(V
O1
-V
O2
)/(150-110)/0.33
Gm(-)=(V
O4
-V
O3
)/(150-110)/0.33
Spindle driver
Slide driver
V
I1
=250mV, V
I2
=130mV,
V
I4
=-250mV, V
I3
=-130mV
Gm(+)=(V
O1
-V
O2
)/(250-130)/0.5
Gm(-)=(V
O4
-V
O3
)/(250-130)/0.5
Forward
Dead zone
Current gain
Reverse
V
O4
/Rs
L
V
O1
/Rs
L
V
O2
/R
s
L
V
O3
/Rs
L
V
I4
V
I3
V
I2
V
I1
Iosp
I
OSL
Iop..the peak current of Iosp or Io
SL
Iop
Iosp or I
OSL
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