STK672-050-E View Datasheet(PDF) - SANYO -> Panasonic

Part Name

Description

View to exact match

STK672-050-E

Stepping Motor Driver (sine wave drive) Output Current 3.0A (no heat sink*)

SANYO -> Panasonic 

STK672-050-E

Power-on Reset

The application must perform a power-on reset operation when VCC2 power is first applied to this hybrid IC.

Application circuit that used 2W1-2 phase excitation (microstepping operation) mode.

VCC2=5V

CLK

ENABLE

1kΩ

+ RESET

RET

MOI

MO1

MO2

VCC2=5V

VCC1=10V to 45V

7

9

10

11

12

143

Two-phase

stepping motor

6A

5A

2B

1B

15

14 STK672-050-E 3

18

4

16

17

VCC2=5V

19

20

21

8

Vref

22

+

SG

PG

ITF02395

Setting the Motor Current

The motor current IOH is set by the Vref voltage on the hybrid IC pin 8. The following formula gives the relationship

between IOH and Vref.

IOH =

1

3

× Vref/Rs, Rs: The hybrid IC internal current detection resistor (0.2Ω ±3%)

Applications can use motor currents from the current (0.05 to 0.1A) set by the duty of the frequency set by the oscillator

up to the limit of the allowable operating range, IOH = 3.0A

IOL IOH

Ioave

0A

Motor current waveform

A12408

Function Table

M2

0

M1

0

M3

1

2 phase excitation

0

1-2 phase excitation

0

1

1

Phase switching clock edge timing

1

0

1

1-2 phase excitation

W1-2 phase excitation

W1-2 phase excitation 2W1-2 phase excitation

2W1-2 phase excitation 4W1-2 phase excitation

Rising edge only

Rising and falling edges

CWB

Forward

0

Reverse

1

ENABLE

RESET

Motor current is cut off when low

Active low

A

A

B

B

MO1

1

0

0

1

MO2

0

0

1

1

No.5228-6/19

Share Link: