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參數(shù)資料
| 型號(hào)： | REJ03F0052_M54679SP |
| 廠商： | Hitachi,Ltd. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 2-Phase Stepper Motor Driver |
| 中文描述： | 二相步進(jìn)電機(jī)驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 199K |
| 代理商： | REJ03F0052_M54679SP |
Rev.1.0, Sep.17.2003, page 1 of 11
M54679SP
2-Phase Stepper Motor Driver
REJ03F0052-0100Z
Rev.1.0
Sep.17.2003
Description
The M54679SP is a semiconductor integrated circuit that can drive the bipolar stepping motor directly by controlling
the coil-current at low level.
Features
Wide supply voltage sphere (10 to 35 V)
Bipolar, constant current PWM function.
(Topside transistors PWM function, maximum current is 0.8 Amps.)
Few external components.
(This IC can be operated with 1 capacitor and 2 resistances.)
4 phases input style (include the protection function of output through current).
Output current charge function (2 bits, 4 type currents).
Thermal protection circuit.
Include flywheel diodes.
Application
Printer, PPC and Facsimile.
Function
The M54679SP is a semiconductor integrated circuit, which can drive to phase stepper motor.
It can control the direction of motor current and output motor current (4 steps) by I0, I1 terminals.
Also, it can drive the two-phase bipolar stepper motor by one IC as it includes two current control circuits.
Block Diagram
Vm1
Ph1A
Ph1B
Q
R
S
Ph2A
Ph2B
Q
R
S
S1
Fref
S2
VTM
Rs1
Rs2
Out1B
Out1A
Out2A
Out2B
Vcc
VTL
VTH
Frequency
Generator
Spike
current
cancel
FF1
FF2
Current
comp1
Current
comp2
GND
Source
PWM
Source
PWM
P.GND
P.GND
Spike
current
cancel
Stby
Standby
P.GND
Vm2
TSD
Regout
(3.5V)
1.25V
10K
18K
Vref
I0(2)
I1(2)
I0(1)
I1(1)
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