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参数资料
| 型号： | M51971FP |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSH DC MOTOR CONTROLLER, 0.02 A, PDSO10 |
| 封装： | 10P2-C |
| 文件页数： | 10/13页 |
| 文件大小： | 387K |
| 代理商： | M51971FP |
MOTOR SPEED CONTROL
M51971L/FP
MITSUBISHI <CONTROL / DRIVER IC>
Upper side : Motor speed (FV conversion waveform of tacho-
generator frequency)
Lower side : Supply voltage
Horizontal axis : 20 ms/div
Time constant of motor
≈ 100 ms
Application Characteristics Example
How to determine R
τ and Cτ
These constants determine the motor rotating speed. If the motor
rotating speed and the number of poles of tacho-generator are
assumed to be N and P, respectively, the following relational
expression is generally established. According to the required
rotating speed, select the constant in such a way that R
τ can be
put in the range of 10k
– 500k. When using a high resistance,
take care for leak current that may flow on the surface of the
printed circuit board.
NP
1.20 R
τ Cτ
≈
1
4
0
4
8
12
16
Supply voltage VCC (V)
Ta = -20
°C
Ta =25
°C
Ta =75
°C
3
2
1
Output voltage range at pin
– Supply
voltage characteristics
9
Output
voltage
range
at
pin
V
(V)
9
160
80
–40
01
2
3
4
Buffer
amplifier
offset
voltage
V
BO
(mV)
VCC=9V
0
40
120
Buffer amplifier offset voltage –
Voltage characteristics at pin 8
Voltage at pin
V
(V)
8
10000
1000
Tacho-generator output frequency –
Connection resistance characteristics at pin
Connection resistance R
τ (k) at pin
R
τ (k)
Tacho-generator
output
frequency
NP
(Hz)
7000
5000
3000
2000
1000
700
500
300
200
10
20 30
50 70 100
200 300 500
Cτ
= 4700pF
0.01
F
0.022
F
0.047
F
0.1
F
1
100
90
10
0%
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M51971L | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:MOTOR SPEED CONTROL |
| M51977FP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SWITCHING REGULATIR CONTROL |
| M51977P | 制造商:Panasonic Industrial Company 功能描述:IC SUBBING WITH PQVIM51977P |
| M51978FP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SWITCHING REGULATOR CONTROL |
| M51978P | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SWITCHING REGULATOR CONTROL |
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