a4982 Allegro MicroSystems, Inc., a4982 Datasheet - Page 5

• Manufacturer Part Number: a4982
• Description: Dmos Microstepping Driver With Translator And Overcurrent Protection
• Manufacturer: Allegro MicroSystems, Inc.

A4982
THERMAL CHARACTERISTICS may require derating at maximum conditions
Package Thermal Resistance
*In still air. Additional thermal information available on Allegro Web site.
Characteristic
Symbol
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
R
θJA
20
DMOS Microstepping Driver with Translator
ET package; estimated, on 4-layer PCB, based on JEDEC standard
LP package; on 4-layer PCB, based on JEDEC standard
40
Maximum Power Dissipation, P
60
Temperature (°C)
80
100
120
Test Conditions*
and Overcurrent Protection
140
D
(max)
160
180
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
Value Units
32
28
ºC/W
ºC/W
5