APX6219 Anpec Electronics, APX6219 Datasheet

APX6219

Manufacturer Part Number

APX6219

Description

PWM Stepper Motor Driver

Manufacturer

Anpec Electronics

Datasheet

1.APX6219.pdf (15 pages)

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Internal Thermal Shutdown

Thermal Printer

Up to 750 mA Continuous Output Current for

Low Output Saturation Voltage

Stepping Motor Control

Able to Drive Both Windings of Bipolar Stepper

Up to 28V Output Sustaining Voltage

Internal PWM Current Control

Built-in Protection Diode

Each Winding

Lead Free Available (RoHS Compliant)

Scanner

Motor

COMP.INPUT2

SENSE2

PHASE2

OUT1A

OUT2A

OUT2B

VREF2

GND

RC2

l02

I12

SOP-24 (Top View)

The APX6219 is designed to drive both winding of a

two-phase bipolar stepper motor or bidirectionally

control 2 DC motors. APX6219 includes two H-

bridges capable of continuous output current of ±750

mA with peak start up to 1A and operating voltages

up to 28V. Motor winding current can be controlled

by the internal fixed-frequency, pulse-width modulated

(PWM), current-control circuitry. Wide range current

control is controlled by means of two logic inputs with

a external reference voltage for each bridge. The peak

load current limit is set by the user’s selection of a

reference voltage and current-sensing resistor. Two

logic-level select output current limits of 0%,33%,

67%, or 100% of the maximum level. A phase input

to each bridge determines load current direction. A

thermal shutdown protection circuit disables the out-

puts if the chip temperature over the safe operation

limit. The APX6219 come in SOP-24 package.

SENSE1

COMP.INPUT1

OUT1B

l01

GND

l11

PHASE1

VREF1

RC1

(LOAD SUPPLY)

(LOGIC SUPPLY)

PWM Stepper Motor Driver

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