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參數(shù)資料
| 型號： | LB11997H |
| 元件分類： | 運動控制電子 |
| 英文描述： | DISK DRIVE MOTOR CONTROLLER, 1.3 A, PDSO28 |
| 封裝： | HSOP-28 |
| 文件頁數(shù)： | 7/8頁 |
| 文件大?。?/td> | 176K |
| 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
VC > VCREF : Forward
VC < VCREF : Slowdown
(Reverse-blocking circuit prevents
reverse rotation.)
W phase output.
Output transistor GND.
V phase output.
Upper side output NPN transistor
collector pin (common for all 3
phases). For current detection,
connect resistor between VCC3
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
U phase output.
VCREF
VC
WOUT
VOUT
UOUT
0V to VCC1
–1.5V
A12513
A12514
A12515
A12516
4
5
25A
15A25A15A
VCC1
51k
200
23
1
VCC2
3.9
27 28
2
7
15k
5k
7k
VCC1
RF
100A
12
VCC1
50k
75k
PWR GND
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