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參數(shù)資料
| 型號(hào)： | M51971L |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | MOTOR SPEED CONTROL |
| 中文描述： | 電機(jī)轉(zhuǎn)速控制 |
| 文件頁(yè)數(shù)： | 1/13頁(yè) |
| 文件大?。?/td> | 387K |
| 代理商： | M51971L |
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MOTOR SPEED CONTROL
M51971L/FP
MITSUBISHI <CONTROL / DRIVER IC>
9
10
PIN CONFIGURATION (TOP VIEW)
DESCRIPTION
The M51971 is a semiconductor integrated circuit designed to
control the motor rotating speed.
The built-in FG amplifier with high gain enables to use a wide
range of rotating speed detector (FG detector).
Use of less external parts enables DC motors to be controlled with
high precision.
FEATURES
G
Wide range of supply voltage
4 – 17.5V
G
Variation coefficient of supply voltage
±
0.005%/V (standard)
G
Load variation coefficient
±
0.01% (standard, full load range)
G
Temperature coefficient of rotating speed
7ppm/C (standard)
G
Built-in high performance FG amplifier
APPLICATION
Motor rotating speed control in floppy disk driver, player, tape
recorder, car stereo, etc.
RECOMMENDED OPERATING CONDITIONS
Supply voltage range
4 – 17.5V
Rated supply voltage
9V
Input voltage range at pin
Input voltage range at pin
Highest setup tacho-generator frequency
2.5kHz
Minimum trigger pulse width (input pulse at pin
-0.4 – Vcc Note 1
-0.4 – Vcc
)
40
μ
s Note 2
Note 1: The linear operation range is -0.4 to +0.4V.
Note 2: This condition applies to both periods: from pulse rising to
pulse falling and pulse falling to pulse rising.
Outline 10P5
1
4
3
2
5
6
7
8
Schmitt input
Non-inverted input
Inverted input
Amplifier output
Time constant
Stabilized voltage
M
GND
Integration capacitance
BLOCK DIAGRAM
1
4
4
Output
Power supply
10
7
8
9
1
4
3
2
6
5
Outline 10P2-C
M
Non-inverted input
Inverted input
Amplifier output
Schmitt input
Time constant
Power supply
Output
Integration capacitance
GND
Stabilized voltage
1
2
10
7
6
Non-inverted input
Inverted input
Power supply
Operational
amplifier
V
LS
1.9V
Amplifier
output
Schmitt
intput
Stabilized supply
voltage
3
4
Schmitt
comparator
5
Time constant
Integration
capacitance
8
V
LS
1.9V
9
Over-shoot
prevention
circuit
Timer
Constant
current
control
Buffer
amplifier
Output
GND
Stabilized
voltage
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M51977FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SWITCHING REGULATIR CONTROL |
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| M51978P | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SWITCHING REGULATOR CONTROL |
| M51981ML | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:VOLTAGE DETECTING, SYSTEM RESETTING IC SERIES |
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