STK672-732A-E View Datasheet(PDF) - ON Semiconductor

Part Name

Description

View to exact match

STK672-732A-E

Thick-Film Hybrid IC 2-phase Stepping Motor Driver

ON Semiconductor 

STK672-732A-E

7. Example of Stepping Motor Driver Output Current Path (1-2 phase excitation)

2-phase stepping motor driver

IOA IOAB

BBIN

BIN

ABIN

AIN

Power on

reset

FAULT

signal

Overheating

detection

VDD

N.C N.C A

F1

FAO

FAB

FBO

FBB

Latch OCD

R1

Chopper

circuit

Latch

Vref/4.9

Amp

100kΩ

VSS VSS

AI

BI

Vref

VSS

AB

B

F2

F3

R2

BB

F4

P.G2

P.G1

VCC

24V

C02

at least 100μF

P.GND

φA(Pin 13)

φAB(Pin 17)

Phase A output current

IOA

Phase AB output current

IOAB

PWM operations

When PWM operations of IOA

are OFF, for IOAB, negative

current flows through the

parasitic diode, F2.

When PWM operations of IOAB are

OFF, for IOA, negative current flows

through the parasitic diode, F1.

No. A1590-18/19

Share Link: