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MTD2038G_17

更新时间：2024-09-18 22:16:59

品牌：SHINDENGEN

描述：MTD2038G

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数据手册

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MTD2038G_17 概述

MTD2038G

MTD2038G_17 数据手册

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Stepper Motor Driver IC

MTD Series

DMOS Microstepping PWM Motor Driver

MTD2038G

Features

●Dual full bridge for a bipolar stepper motor driver

●Load supply voltage 40V , Output current 1.0A

●Constant current control (Fixed frequency PWM control)

●2-bit selectable current level (Full step/Half step/Quarter step)

●Stand-by function

●Thermal shutdown with hysteresis

●Under voltage lock out function

●Surface mount package with heat sink(HSOP24)

HSOP24

■Absolute maxmum ratings / Ta=25℃

Parameter

V_REGOutput current

Logic input

Symbol

I_REG

Rating

Unit

V_LOGIC

Vｒ

0～6

0～7

Reference input

Load supply

Vmm

I_OUT

Output current

1.0

Power dissipation

Storage temperature range

Maximum Junction temperature

P_Dꢀ*1

Tstg

2.1

-40～150

℃

150

℃

*1 : 50.8×50.8×1mm³Glass Epoxy Board(FR4),200mm²Cupper Pattern

■Pin Assignment

TOP VIEW

MTD2038G

I0 A

PHA A

Vmm A

OUT A

Rs A

I1 A

Vr A

Vr B

TEST

DEC

V_REG

OUT A

(TAB)

OUT B

Rs B

OUT B

Vmm B

PHA B

I0 B

Cp C

Cp B

Cp A

STB

I1 B

Shindengen Electric Mfg.Co.Ltd

W1002

Stepper Motor Driver IC

MTD2038G

■Electrical Characteristics

Vmm=24V,Ta=25℃ unless otherwise specified

Parameter

Symbol

Condition

MIN

TYP

MAX

Unit

●Output stage

Imm(OFF)

Imm(ON)

Imm(STB)

R_ONH

Load supply current（All circuit OFF）

Load supply current（All circuit ON）

Load supply current（Stand-by）

Upper MOSFET ON resistance

Lower MOSFET ON resistance

Upper MOSFET leakage current

Lower MOSFET leakage current

Upper MOSFET reverse voltage

Lower MOSFET reverse voltage

VcpA under voltage lock out threshold

●Logic stage

V_I0A=V_I1A=V_I0B=V_I1B=5V

V_I0A=V_I1A=V_I0B=V_I1B=0V

V_STB=5V

μA

200

2.0

Iout=-0.8A

1.8

0.8

R_ONL

Iout=0.8A

1.0

IrH

Vmm=35V, V_OUT=0V

V_OUT=35V, V_RS=0V

I_F=0.8A

100

1.6

μA

IrL

V_FH

1.4

1.1

Vmm+4

V_FL

I_F=0.8A

1.3

VcpAUVLO

Vmm+3

Vmm+6

I_REG=500μA

4.85

4.75

2.0

GND

2.3

GND

5.00

5.15

5.25

V_REG

0.8

V_REGoutput voltage

V_REG

I_REG=12mA

V_LOGIC

PHA/I0/I1/DEC "H" input voltage

PHA/I0/I1/DEC "L" input voltage

STB "H" input voltage

V_LOGIC

V_STB

V_REG

0.8

STB "L" input voltage

PHA/I0/I1 "H" input current

PHA/I0/I1 "L" input current

STB "H" input current

I_PHA/I0/I1H V_PHA/I0/I1=5V

μA

I_PHA/I0/I1

V_PHA/I0/I1=0V

-20

-50

I_STB

I_DEC

V_STB=5V

STB "L" input current

V_STB=0V

-10

150

-10

DEC "H" input current

V_DEC=5V

DEC "L" input current

V_DEC=0V

Vr "H" input current

IrefH

IrefL

Vs1

Vs2

Vs3

f_OSC

Vr=4V

Vr "L" input current

Vr=0V

-1

100

0.65

-10

105

Comparator threshold voltage (100%)

Comparator threshold voltage (70%)

Comparator threshold voltage (40%)

Oscillator frequency

V_I0(AorB)="L", V_I1(AorB)="L"

V_I0(AorB)="H", V_I1(AorB)="L"

V_I0(AorB)="L", V_I1(AorB)="H"

kHz

μs

℃

Comparator blanking time

CpA charging time *1

Cp1=0.22μF,Cp2=0.01μF,VSTB=5V→0V

Tchg

T_TSD

1.5

Thermal shutdown temperature *2

150

170

190

*1: Charge of a charge pump takes time. Therefore, please take the time more than Tchg from aftre Vcc input or Stand-by release to even

before a motor drive start.

*2: T_TSDis design value.

■Thermal resistance

Symbol

θja *3

Rating

Unit

℃/W

*3: 50.8×50.8×1mm³Glass Epoxy Board(FR4),200mm²Cupper Pattern

Shindengen Electric Mfg.Co.Ltd

W1002

Stepper Motor Driver IC

MTD2038G

■Recommended operation conditions

Parameter

Junction temperature

Load supply

Symbol

Recommendation

-25～120

15～35

Unit

℃

Vmm

Reference voltage

0～6

■Truth table

I0 A(B) and I1 A(B)

PHA A or B

OUT A or B

OFF

×：don't care

I0 A(B)

I1 A(B)

Current Level(％)

100

STB *1

Mode

LꢀorꢀOPEN

ACTIVE

Stand-By

DEC *1

LꢀorꢀOPEN

Current Decay Mode

SlowꢀDecay

MixꢀDecay(37.5% Fast)

*1 built-in pull-down resistance

Shindengen Electric Mfg.Co.Ltd

W1002

Stepper Motor Driver IC

MTD2038G

■Block diagram / Typical application

CV_REG

Vmm

Cvmm

Cp1

CpA

Cp2

V_REG

VmmA

OUTA OUTA

OUTB OUTB

VmmB

CpB

Charge Pump

Stand-by STB

CpC

TSD

UVLO

Stand-by

PHA A

PHA B

Decay

VrA

1/5

VrB

1/5 .

Current Sensor

2-bit digital

current

selection

2-bit digital

current

selection

V_REG

Decay

Mix Decay%

selection

Oscillator

PG(TAB)

RsB

I1A

I0A

DEC

RsA

TEST

I0B

I1B

OPEN

"H"

CPU

GATE ARRAY

●Recommended component values

Symbol

Cp1

Recommended component values

Unit

0.22

0.01

0.1

μF

Cp2

CV_REG

0.68

Cvmm *1

μF

*1： It recommend the electrolytic capacitor for the noise absorption connect near IC to Load supply.

●Constant chopping current level

Ichop

Ichop =

5 Rs

Output current

Shindengen Electric Mfg.Co.Ltd

W1002

Stepper Motor Driver IC

MTD2038G

■Outline Drawing

(Unit : mm)

Shindengen Electric Mfg.Co.Ltd

W1002

Stepper Motor Driver IC

MTD2038G

Although we are constantly making every effort to improve the quality and reliability of our products, there nevertheless remains a certain

probability that the semiconductor products may occasionally fail or malfunction. Please take careful precautions against product failures or

malfunctions to avoid any injuries, fire accidents or social loss by implementing safety designs such as redundancy designs, designs for fire

spread prevention, and designs for preventing malfunctions.

Our semiconductor products listed in this document are not designed or manufactured to be used in devices or systems requiring

extremely high levels of quality and reliability, or the failure or malfunction of which may directly threaten human lives or cause injury.

In the cases where the products are to be used in devices or systems for special applications or devices or systems for specialized

applications shown below, always make sure to consult us in advance.

Special Applications

Transportation devices (automotive, marine, etc.), communication devices for core network, traffic signal devices, fire prevention/anticrime

devices, various safety devices, medical devices, etc.

Specialized Applications

Nuclear power control systems, aircraft and aerospace devices, submarine relay devices, and systems for preserving life, etc.

Even if it is not for a special or specialized application, when IC products are to be used for devices or systems that are desired to last for

a long period under continuous operation, please make sure to consult our sales representative in advance.

● We reserve the right to make any changes to the contents of this manual without prior notice in accordance with modifications to IC products.

● Details of specifications should be exchanged at the adoption of the IC products.

● All information included in this manual is believed to be accurate and reliable. However, our company takes no responsibility for any injury or

damage incurred when using the IC products as described in this manual. Neither do we take any responsibility for issues arising from

infringement of patent or other rights caused by using this manual.

● The provision of this manual does not guarantee the right to use any third party's patent or other rights, or grant permission to use the patent

or other rights of our company.

● No part of this manual may be reproduced or copied without the specific written consent of Shindengen Electric Mfg. Co., Ltd.

Shindengen Electric Mfg.Co.Ltd

W1002

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