STK672-600

No. A0755-4/19

Block Diagram

Sample Application Circuit

*: C03 through C08 represents a capacitor recommended for use with a recommended value of 1,000pF.

Chopper

circuit

Phase

excitation

signal

generator

Excitation

mode

selection

Phase

advance

counter

P.G2

VSS

S.G

CI

BI

AI

FBB

FBO

FAB

FAO

BB

B

AB

A

P.G1

F1

F2

F3

F4

R1

R2

VDD

R3

3.9k

Ω/1%

R4

1.0k

Ω/1%

VDD=5V

MODE1

CLOCK

CWB

ENABLE

VSS

Vref

N.C

MODE2

RESETB

S.G

N.C

N.C

19

18

16

15

14

13

12

17

11

10

9

8

7

6

5

4

1

2

3

RESETB

Vref

A

AB

B

BB

P.G2

24V

10

μF

STK672-600

9

12

10

17

13

14

19

4

5

3

1

2

2-phase stepping motor driver

R01

R02

P.GND

C01

At least 100

μF

VCC

R04

10k

Ω

R03

5.0V

C02

D1

CWB

MODE2

MODE1

CLOCK

5.0V

P.G1

6

100

Ω

15

ENABLE

C03

C04

C05

C06

C07

C08

VDD (5V)

16

18

VSS

S.G