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参数资料
| 型号： | LB1855NM |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 1.2 A, PDSO16 |
| 封装： | MFP-16 |
| 文件页数： | 3/5页 |
| 文件大小： | 79K |
| 代理商： | LB1855NM |
Pin No.
Pin
Pin voltage (V)
Pin description
Equivalent circuit
No. 5798-3/5
LB1855NM
Sample Application Circuit
Hall input voltage range: 2.2 to (VCC – 0.7) V DC
70 mV p-p to 300 mV p-p AC
Truth Table
Input: “H” indicates that the input phase 1 is at least 0.2 V higher than phase 2.
“L” indicates that the input phase 1 is at least 0.2 V lower than phase 2.
1
FC
Frequency characteristics correction
Oscillation in the current control closed loop can be prevented
by inserting a capacitor between this pin and VREF.
Item
Source
→ sink
Input
U
V
W
1
V phase
→ W phase
H
L
2
U phase
→ W phase
H
L
3
W phase
→ V phase
L
H
4
V phase
→ U phase
L
H
L
5
U phase
→ V phase
H
L
H
6
W phase
→ U phase
L
H
Pin Functions
2
VCC
7 to 18
Power supply pin
3
4
5
WOUT
VOUT
UOUT
Outputs pin
6
Rf
Ground for the output transistor
The output current can be detected as a voltage by inserting the
resistor Rf between this pin and ground to provide fixed current
drive. The current limiter also operates by detecting this voltage.
Continued on next page.
However, note that certain motors may require output capacitors to prevent oscillation.
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相关代理商/技术参数 |
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| LB1857 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Three-Phase Brushless-Motor Driver |
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