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參數(shù)資料
| 型號： | LB11997H |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Three-Phase Brushless Motor Driver for CD-ROM Spindle Drive |
| 中文描述： | 三相無刷電機驅(qū)動器為CD - ROM驅(qū)動器主軸 |
| 文件頁數(shù)： | 7/8頁 |
| 文件大?。?/td> | 74K |
| 代理商： | LB11997H |
LB11997H
No. 6231-7/8
Pin number
Pin name
Pin voltage
Equivalent circuit
Pin function
5
4
2
1
28
27
23
RF
7
LMC
12
BRAKE
Continued from preceding page
Control reference voltage supply
pin. Determines control start
voltage.
Speed control voltage supply pin.
V type control technique
V
C
> V
CREF
: Forward
V
C
< V
CREF
: Slowdown
(Reverse-blocking circuit prevents
reverse rotation.)
W phase output.
Output transistor GND.
V phase output.
U phase output.
Upper side output NPN transistor
collector pin (common for all 3
phases). For current detection,
connect resistor between V
CC
3
pin and RF pin. Constant current
control and current limiter works
by detecting this voltage.
When this pin is connected to GND,
the limiter setting current is
increased by a factor of 1.5.
Short brake pin.
BRAKE:
High –
>
Short brake operation
Low/Open –
>
Motor drive operation
V
CREF
V
C
W
OUT
PWR GND
V
OUT
U
OUT
0V to V
CC
1
0V to V
CC
1
–1.5V
A12513
A12514
A12515
A12516
4
5
25
μ
A
15
μ
A
25
μ
A
15
μ
A
VCC1
51k
200
200
23
1
VCC2
3.9
3.9
27 28
2
7
15k
5k
7k
VCC1
RF
100
μ
A
12
VCC1
50k
75k
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|---|---|
| LB11999 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Three-Phase Brushless Motor Drivers for CD-ROM Spindle Motor Driver (supports 44x, 48x, 50x) |
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