ACS706ELC-05C Allegro Microsystems Inc, ACS706ELC-05C Datasheet - Page 17

• Manufacturer Part Number: ACS706ELC-05C
• Description: SENSOR CURRENT 5A 5V BI 8-SOIC
• Manufacturer: Allegro Microsystems Inc
• Series: -r

Specifications of ACS706ELC-05C

• Current - Sensing: ±5A
• Accuracy: ±1%
• Sensitivity: 133mV/A
• Current - Supply: 8mA
• Sensor Type: Hall Effect
• Voltage - Supply: 4.5 V ~ 5.5 V
• Output: 2.5V
• Frequency: 50kHz
• Response Time: 6µs
• Polarization: Bidirectional
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 620-1164-2; ACS706ELC-005

The Effect of PCB Layout on ACS706 Thermal Performance
Eight different PC boards were fabricated to characterize the effect of PCB design on the operating junction temperature of the
Hall-effect IC inside of the ACS706. These PC boards are shown in the figure below.
An ACS706 device was soldered on to each PCB for thermal testing. The results of the testing are shown in the following table.
ACS706ELC05C-DS, Rev. 3
Test Results on Eight Thermal Characterization PCBs
Tested at 15A, T
by 14 gauge wires
Sides with Traces
PC Boards
1
2
2 oz. Cu on one side of board
A
= 20°C, still air, 2 oz. copper traces, current carried on and off board
ACS706ELC-05C
Trace Width (mm)
1.5
1.5
1.5
1.5
4
4
4
4
Trace Length (mm)
2 oz. Cu on both sides of board
50
50
10
10
50
50
10
10
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
Above Ambient (°C)
Temperature Rise
Overheated
106
110
90
48
53
38
54
16