MTD2029J

W1002

MTD Series

Shindengen Electric Mfg.Co.Ltd

DMOS DUAL FULL BRIDGE PWM

MOTOR DRIVER ICs

PWM current control motor driver ICs

Charge Pump

cpA

cpB

cpC

VmmB

VmmA

OUT3 OUT4

OUT2

OUT1

BRAKE A

CR A

RsA

LG

PG

RsB

Vref B

VrefA

DECAY A

DECAY B

TSD

UVLO

BRAKE B

CR B

PHASE A

I0 A

I1 A

I0 B

I1 B

Vcc

2-bit digital

current select

+

-

ONE

SHOT

+

-

Current

Sensor

+

-

+

-

Current

Sensor

SYNC

1/5

1/5

PHASE B

STB

SRM

Blank

ONE

SHOT

Blank

2-bit digital

current select

36

35

8

9

10

34

33

32

14

30

TAB

31

15

29

28

27

11

12

13

26

4

5

6

24

23

19

18

22

21

20

40

39

1

3

2

38

37

■Features

1)

2）

3)

4)

5)

6）

7)

8) 

9）

10)

11）

12）

Built-in dual full-bridge

For a 2-phase bipolar stepper motor or two DC motors

Constant current control function (fixed OFF time PWM current control)

2-bit digital current selection （It can respond to W1-2 phase excitation）

Selectable current decay mode （Slow/Fast/Mix Decay Mode）

Stand-by function

Noise cancellation function (An external filter is unnecessary)

Phase Synchronous function

Over heating shutdown function with thermal hysteresis

Output current 1.5A, Output voltage 50V

Surface mount type package with heat dissipation tab (HSOP40)

Under Voltage Lock Out function

■Block Diagram

HSOP40