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參數(shù)資料
| 型號： | LB1896 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | 3-phase Brushless Motor Driver for CD-ROM Spindle Drive Use |
| 中文描述： | 三相無刷電機驅(qū)動器為CD - ROM驅(qū)動器使用主軸 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大?。?/td> | 95K |
| 代理商： | LB1896 |
Pin Functions
Pin No.
3, 4
20, 21
2
23
22
19
Pin Name
Frame
GND
GND
U
OUT
V
OUT
W
OUT
Pin Voltage
Equivalent Circuit Diagram
Pin Function
Frame GND.
GND must be shared.
GND
Output pins.
Motor connection
17
Rf
Output Tr GND.
A resistor can be connected between this pin
and GND to sense the output current as a
voltage drop to provide for overcurrent
protection.
18, 24
16
NC
V
CC
2
Idle pins.
v
Power supply for blocks other than the
output block.
v
This supply should be kept stable to
prevent ripple and noise from entering this
pin.
v
First-stage amplifier gain setting resistors.
v
Z1 and Z2 normally range from several
tens of k
to several hundreds of k
.
v
The gain is about 6 dB.
4.3 to 6.5 V
15
14
Z1
Z2
13
12
V
C
V
Cref
V
CC
2/2
±
1.0
v
V
C
is the speed control pin.
Forward when V
C
>
V
Cref
.
Reverse when V
C
<
V
Cref
.
V
C
is used to control the output voltage.
v
V
Cref
determines the motor control stop
voltage.
V
CC
2/2 in normal use.
11
10
GC1
GC2
0 to V
CC
2
v
Input/output gain switching pins.
v
GC1 is for first-stage amplifier Z1/Z2
switching.
When GC1 is LOW, Z1 is selected;
when HIGH, Z2 is selected. GC2 is for
next-stage amplifier switching.
Continued on next page.
LB1896
No.5225-4/8
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