STK672-640C-E View Datasheet(PDF) - ON Semiconductor

Part Name

Description

Manufacturer

STK672-640C-E

2-phase Stepping Motor Driver

ON Semiconductor 

Block Diagram

STK672-640C-E

VDD=5V 9

MODE1 10

N.C 11

MODE2 17

CLOCK 12

CWB 13

RESETB 14

ENABLE 15

FAULT1 16

N.C 18

Vref 19

FAULT2 VrefOP

A

AB

8

7

4

5

Excitation mode

selection

Phase

advance

counter

Power-on

reset

VDD

Phase

excitation

signal

generator

Latch

Circuit

Latch

Circuit

Output

open

detection

Overcurrent

detection

F1

F2

FAO

FAB

FBO

FBB

R1

FAULT1

FAULT2

signal

AI

Current control

chopper circuit

BI

Vref/4.9

Overheating Latch

detection Circuit

Vref

Amplifier

VSS

VSS

B

BB

3

1

F3

F4

R2

2 P.G2

6 P.G1

Sample Application Circuit

VDD(5V)

CLOCK

MODE1

MODE2

CWB

ENABLE

FAULT1

FAULT2

STK672-640C-E

9

12

10

17

13

15

RESETB

14

A

4

AB

5

3B

BB

1

2 phase stepping motor driver

R01

R03

16

8

Vref

19

R02

0.1μF

C02

P.G2

2

6

P.G1

18

N.C

VCC

24V

+ C01

at least 100μF

P.GND

No. A2116-5/27

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