Data Sheet

High Bandwidth, Fast Fault Response Current Sensor IC
In Thermally Enhanced Package
ACS709
8
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Thermal Characteristics
Characteristic Symbol Test Conditions Value Units
Steady State Package Thermal Resistance
R
θJA
Tested with 30 A DC current and based on ACS709 demo
board in 1 cu. ft. of still air. Please refer to product FAQs
page on Allegro web site for detailed information on
ACS709 demo board.
21 ºC/W
Transient Package Thermal Resistance
R
TθJA
Tested with 30 A DC current and based on ACS709 demo
board in 1 cu. ft. of still air. Please refer to product FAQs
page on Allegro web site for detailed information on
ACS709 demo board.
See graph ºC/W
0
2
4
6
8
10
12
14
16
18
20
22
0.01 0.1 1 10 100 1000
Thermal Resistance (°C/W)
Time (Sec)
ACS709 Transient Package Thermal Resistance
On 85--0444 Demo Board (No Al Plate)