A4988 Ver la hoja de datos (PDF) - Allegro MicroSystems

Número de pieza

componentes Descripción

Lista de partido

A4988

DMOS Microstepping Driver with Translator and Overcurrent Protection / 28-contact QFN

Allegro MicroSystems 

A4988

DMOS Microstepping Driver with Translator

And Overcurrent Protection

THERMAL CHARACTERISTICS

Characteristic

Package Thermal Resistance

Symbol

Test Conditions*

RθJA Four-layer PCB, based on JEDEC standard

*Additional thermal information available on Allegro Web site.

Value Units

32 ºC/W

Power Dissipation versus Ambient Temperature

4.00

3.50

3.00

2.50

2.00

1.50

R

θJA = 32 ºC/W

1.00

0.50

0

20 40 60 80 100 120 140 160

Temperature, TA (°C)

Allegro MicroSystems, LLC

5

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

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