A3983 Allegro MicroSystems, Inc., A3983 Datasheet - Page 4

• Manufacturer Part Number: A3983
• Description: DMOS Microstepping Driver with Translator
• Manufacturer: Allegro MicroSystems, Inc.

THERMAL CHARACTERISTICS may require derating at maximum conditions, see application information
26184.29A
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
20
θJA
40
One-layer PCB, one-sided with copper limited to solder pads
One layer PCB, two-sided with copper limited to solder pads and
3.8 in.
High-K PCB (multilayer with significant copper areas, based on
JEDEC standard)
Maximum Power Dissipation, P
DMOS Microstepping Driver with Translator
60
2
of copper area on each side, connected to GND pins
Temperature (°C)
80
100
120
Test Conditions*
140
D(max)
160
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
180
A3983
Value Units
100
32
28
ºC/W
ºC/W
ºC/W
4