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A4988 Datasheet(PDF) 5 Page - Allegro MicroSystems

Part # A4988
Description  DMOS Microstepping Driver with Translator and Overcurrent Protection
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

A4988 Datasheet(HTML) 5 Page - Allegro MicroSystems

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DMOS Microstepping Driver with Translator
and Overcurrent Protection
A4988
5
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
4988-DS
THERMAL CHARACTERISTICS
Characteristic
Symbol
Test Conditions*
Value Units
Package Thermal Resistance
RθJA
Four-layer PCB, based on JEDEC standard
32
ºC/W
*Additional thermal information available on Allegro Web site.
Temperature, TA (°C)
0
0.50
1.50
2.00
2.50
3.00
3.50
4.00
1.00
20
40
60
80
100
120
140
160
Power Dissipation versus Ambient Temperature
R
JA = 32
ºC/W


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