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參數(shù)資料
| 型號： | M54677FP |
| 廠商： | Mitsubishi Electric Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 2-PHASE STEPPER MOTOR DRIVER |
| 中文描述： | 二相步進電機驅動器 |
| 文件頁數(shù)： | 3/5頁 |
| 文件大?。?/td> | 123K |
| 代理商： | M54677FP |
2-PHASE STEPPER MOTOR DRIVER
M54677FP
MITSUBISHI <CONTROL / DRIVER IC>
SWITCHING CHARACTERISTICS
1
1/2
T
ON
T
OFF
T
OFF
=0.69 x R
T
x C
T
Switching waveforms
V
MA
- V
MB
or V
MB
- V
MA
V
E
V
CH
td
TIMING CHART
2-phase excitation
Phase 1
Phase 2
APPLICATION DESCRIPTION
(1)Phase input
Phase input decides the output mode.
(2)Vref (Comparative voltage)
The current level can be continuously changed by changing
Vref voltage continuously.
(3)Current sensor
When the voltage fall at the current sensing resistor and the
selected current level become of the same level, the
comparator triggers the monostable. Then the output stage
is cut off for a certain time (T
OFF
). During this cutoff time, the
current decreases slightly and falls short of the comparative
level.
After the cutoff time (T
OFF
), the output stage is in ON state
again. This operation is repeated.
(4)Single pulse generator
At the comparator output fall edge, the monostable is
triggered. The pulse width of the monostable at the external
timing C
T
and R
T
is as follows.
T
OFF
= 0.69 x C
T
x R
T
Retrigger during T
OFF
is neglected.
(5)Analog control
The output current level can be continuously changed by
changing the voltage at V
R
or the feedback voltage to the
comparator.
Ph
H
L
H
L
St
L
L
M
A
H
L
Z
Z
M
B
L
H
Z
Z
H
H
Z: High impedance
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PDF描述 |
|---|---|
| M54678FP | 2-PHASE STEPPER MOTOR DRIVER |
| M54685L | CAPACITOR ROHS 200V, 7400 UF |
| M54687FP | Bi-DIRECTIONAL MOTOR DRIVER WITH GOVERNOR |
| M54910P | F2F MAGNETIC STRIPE ENCORDING CARD READER |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M54678FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:2-PHASE STEPPER MOTOR DRIVER |
| M54679FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:2-PHASE STEPPER MOTOR DRIVER |
| M54679SP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:2-Phase Stepper Motor Driver |
| M54679SP(#TB0G) | 制造商:Renesas Electronics Corporation 功能描述: |
| M54685L | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:Bi-DIRECTIONAL MOTOR DRIVER WITH GOVERNOR |
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