ACS706ELC-05C Allegro Microsystems Inc, ACS706ELC-05C Datasheet - Page 18

• 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

ACS706ELC05C-DS, Rev. 3
Improved PC Board Designs
The eight PC boards in the figure above do not represent an ideal PC board for use with the ACS706. The ACS706 evaluation
boards, for sale at the Allegro Web site On-Line Store, represent a more optimal PC board design (see photo below). On the
evaluation boards, the current to be sensed flows through very wide traces that were fabricated using 2 layers of 2 oz. copper.
Thermal management tests were conducted on the Allegro evaluation boards and all tests were performed using the same test
conditions described in the bulleted list above. The results for these thermal tests are shown in the table below. When using
the Allegro evaluation boards we see that even at an applied current of 20 A the junction temperature of the ACS706 is only
≈30 degrees above ambient temperature.
Test Results on Eight Electrical Characterization PCBs
Tested at T
Applied Current
A
= 20°C, still air
(A)
15
20
Allegro Current sensor IC evaluation board with
ACS706 and external connections.
ACS706ELC-05C
Temp Rise Above Ambient
(C)
22
31
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
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