STK672-040 Ver la hoja de datos (PDF) - SANYO -> Panasonic

Número de pieza

componentes Descripción

Fabricante

STK672-040

Microstep Operation-Supported 4-Phase Stepping Motor Driver (IO = 1.5A)

SANYO -> Panasonic 

STK672-040

Motor Current Calculation

The motor current IOH is determined by the reference volt-

age on pin 8 (Vref). The relationship between IOH and

Vref is given by the following equation.

IOH

=

-1- × Vref ⁄ Rs

3

where Rs is the built-in current detection resistance

(0.33Ω ± 3%).

The motor current ranges from the current due to the fre-

quency duty set by the oscillator (0.05 to 0.1A) to the

allowable operating range maximum of IOH = 1.5A.

Function Tables

Motor current waveform

M1 M2 M3 Excitation Phase switching CLK edge timing

0 0 0 Phase 1-2

0 1 0 Phase 2W1-2

1 0 0 Phase W1-2

Rising and falling edge

1 1 0 Phase 4W1-2

001

Phase 2

0 1 1 Phase W1-2

1 0 1 Phase 1-2

Rising edge only

1 1 1 Phase 2W1-2

Input

ENABLE

RESET

Mo1

0

0

1

1

CWB

Direction

0

Forward

1

Reverse

Active level

Low

Low

Mo2

Output

0

A

1

B

0

A

1

B

No. 5227—4/11

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