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參數(shù)資料
| 型號： | M54640P |
| 廠商： | Mitsubishi Electric Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | STEPPER MOTOR DRIVER |
| 中文描述： | 步進電機驅(qū)動器 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 108K |
| 代理商： | M54640P |
STEPPER MOTOR DRIVER
M54640P
MITSUBISHI <CONTROL / DRIVER IC>
PIN CONFIGURATION (TOP VIEW)
each comparator, and then each comparator output triggers
monomulti and the current is cut for a certain time (t
OFF
) by utilizing
the inductance of the coil.
Also, diodes needed for choppering and a thermal shutdown circuit
as a countermeasure against overvoltage are built in this circuit.
BLOCK DIAGRAM
DESCRIPTION
The M54640P is a semiconductor IC to drive a stepper motor by
the bipolar method.
FEATURES
G
Bipolar and constant-current drive
G
Wide current control rage (20 – 800mA)
G
Wide supply voltage drive range (10 – 40V)
G
Built in flywheel diodes
G
Current level can be changed by steps or continuously.
G
Built in a thermal shutdown circuit
APPLICATION
Printer, FDD, HDD, Fax
FUNCTION
The M54640P drives a stepper motor by the bipolar drive method to
change the current direction of a single coil and controls the current
direction with PHASE input pin. In order to obtain higher efficiency,
the constant current drive system to control the coil current is
introduced. The current value can be selected among four levels (0
to max.) by selecting the combination of three internal comparators
by logic input. It also can be continuously changed by controlling
the reference voltage. Conversion to voltage is conducted by the
current value sensing resistor (R
s
) and the voltage is sensed with
Schmitt trigger
11
V
R
V
CC
6
8
7
9
4
5
12
13
10
C
2
T
16
E
15
1
3
14
1
>
1
1
>
1
00
01
10
11
M
A
M
B
V
MM
Output power
supply
P
h
I
1
I
0
V
KH
V
KM
V
KL
Comparator reference input
Comparator input
One-shot-multi time constant
Current sensor
Current sensor
Output
Output
Cutput current
direction switcing
Output current
value setting
GND
Monostable
t
OFF
= 0.69
R
T
C
T
1
16
13
14
15
1
4
3
2
12
5
11
6
10
7
9
8
Outline 16P4
Output
One-shot-multi
time constant
Output power
Power supply
Output current
value setting
Output current
direction switching
Current sensor
Output
Output power
supply
Comparator
reference input
Comparator input
Output current
setting
←
M
B
T
V
MM
GND
V
CC
I
1
P
h
→
→
→
→
←
←
E
M
A
V
MM
V
R
C
Io
GND
M
supply
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M54640P(#TC0J) | 制造商:Renesas Electronics Corporation 功能描述: |
| M54641 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:Bi-DIRECTIONAL MOTOR DRIVER WITH BRAKE FUNCTION |
| M54641FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:Bi-DIRECTIONAL MOTOR DRIVER WITH BRAKE FUNCTION |
| M54641L | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:Bi-DIRECTIONAL MOTOR DRIVER WITH BRAKE FUNCTION |
| M54646AP | 制造商:Panasonic Industrial Company 功能描述:IC |
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