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參數資料
| 型號： | M54670P |
| 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： | 3/6頁 |
| 文件大?。?/td> | 116K |
| 代理商： | M54670P |
2-PHASE STEPPER MOTOR DRIVER
M54670P
MITSUBISHI <CONTROL / DRIVER IC>
I
0
H
L
H
L
I
1
H
Current level
H
L
L
0
Low
Typ
High
(2) I
0
, I
1
I
0
and I
1
fixed based on the comparative voltage V
R
decide the
output current level.
PHASE
H
L
O1
L
O2
H
H
L
(3) V
R
(Comparative voltage)
The current level can be continuously changed by changing the
voltage at V
R
continuously.
(4) Current sensor
When the voltage fall at the current sensing resistor and the
selected current level become of the same level, the output
state is cut off for a certain time by inverting the comparator.
During this cutoff time, the current volume decreases slightly
due to the L component of the motor and falls short of the
comparative level. During the time fixed based on the PWM
frequency, the output stage goes in ON state and then in OFF
state and this ON/OFF operation is repeated.
(5) PWM oscillator
A capacitor C
f
is externally connected to C
T
pin in order to fix
the PWM oscillator frequency. The frequency f
c
is calculated as
follows.
(6) Analog control
The output current level can be continuously changed by
changing the voltage at V
R
or the feedback voltage to the
comparator.
(7) Thermal shutdown function
This IC has a function to protect itself against thermal damage
which is caused when the chip temperature rises abnormally.
Regarding this function, refer to “PRECAUTIONS FOR USE.”
f
c
=
7.77 x 10
3
x C
f
1
TIMING CHART
2-phase excitation
Phase 1
Phase 2
I0, 1(A) = 0
I0, 1(B) = 0
1-2-phase excitation
Phase 1
Phase 2
I0, 1(A)
I0, 1(B)
Microstep
Phase 1
Phase 2
I0(A)
I1(A)
I0(B)
I1(B)
APPLICATION DESCRIPTION
(1) PHASE INPUT
Phase input decides the output mode.
相關PDF資料 |
PDF描述 |
|---|---|
| M54670 | 2-PHASE STEPPER MOTOR DRIVER |
| M54671SP | 2-PHASE STEPPER MOTOR DRIVER |
| M54672SP | 2-PHASE STEPPER MOTOR DRIVER |
| M54676 | 2-PHASE STEPPER MOTOR DRIVER |
| M54676P | 2-PHASE STEPPER MOTOR DRIVER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| M54670P(#TF0G) | 制造商:Renesas Electronics Corporation 功能描述: |
| M54671SP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:2-PHASE STEPPER MOTOR DRIVER |
| M54672SP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:2-PHASE STEPPER MOTOR DRIVER |
| M54676 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:2-PHASE STEPPER MOTOR DRIVER |
| M54676P | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:2-PHASE STEPPER MOTOR DRIVER |
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