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参数资料
| 型号： | LB1955 |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 1 A, PDSO28 |
| 封装： | HSOP-28 |
| 文件页数： | 3/9页 |
| 文件大小： | 131K |
| 代理商： | LB1955 |
No. 5452-3/9
LB1955
Allowable
power
dissipation,
Pd
max
–
W
Ambient temperature, Ta – °C
Pin Assignment
W
IN
2
W
IN
1
V
IN
2
V
IN
1
U
IN
2
U
IN
1
Pin Functions
Pin No.
Pin
Function
23, 24
UIN1, UIN2
U phase Hall element input
25, 26
VIN1, VIN2
V phase Hall element input
27, 28
WIN1, WIN2
W phase Hall element input
16
UOUT
U phase output
15
VOUT
V phase output
13
WOUT
W phase output
11
LCTR
Pin connected to the center points of the coils that are Y-connected to the U, V, and W outputs.
9
VCC
Power supply
10
VREF
Reference voltage output
8
GND
14
Rf
Output current detection
1
VG
Closed loop control gain switching
2
FC
Speed control loop frequency characteristics correction
3
LIM
Output current limit setting
4
VC
Speed control
5
PG
PG waveform output
6
FG
FG waveform output (FGR shorted to GND)
7
FGR
PG/FG synthesized output (FGR shorted to PG)
18
SH
PG waveform sample-and-hold circuit capacitor connection
22
AGC
Connection for the capacitor used by the AGC circuit, which holds the input gain at a fixed level.
12, 17, 19
NC
No connection
20, 21
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