Datasheet > M54679SP

M54679SP

更新时间： 2024-11-23 22:46:39

品牌	Logo	应用领域
日立 - HITACHI		驱动器电机
页数	文件大小	规格书
12页	198K
描述
2-Phase Stepper Motor Driver

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M54679SP 数据手册

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

Out1B Vm1

Out1A

Out2A

Out2B

Vm2

Ph2A

Ph2B

Ph1A

Ph1B

Source

PWM

Source

PWM

P.GND

Vcc

1.25V

10K

Regout

(3.5V)

Spike

current

cancel

Spike

current

cancel

FF1

FF2

Current

comp1

Current

comp2

18K

Vref

VTH

VTL

Frequency

Generator

TSD

I0(1)

I1(1)

I0(2)

I1(2)

VTM

Standby

Stby

Rs1

GND

P.GND

Fref

Rs2

Rev.1.0, Sep.17.2003, page 1 of 11

12 3 4 5 6 7...12

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