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ACS71240KEXBLT-030B3 Current Sensor Carrier -30A to +30A, 3.3V
This board is a simple carrier of Allegro’s ACS71240KEXBLT-030B3 Hall effect-based, electrically isolated current sensor, which offers a low-resistance (~0.6 mΩ) current path and a high 120 kHz bandwidth for fast response times.
| Part Suffix | Range | Supply Voltage | Sensitivity | Zero Point | Fault Trip Level |
|---|---|---|---|---|---|
| 030B3 | ±30 A (bidirectional) | 3.0 V to 3.6 V | 44 mV/A | 1.65 V | ±30 A |
Alternatives available with variations in these parameter(s): current range Select variant…
| Description | Specs (12) | Pictures (11) | Resources (6) | FAQs (0) | On the blog (0) |
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File downloads
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Dimension diagram of the ACS71240 Current Sensor Carrier (274k pdf)
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3D model of the ACS711EX and ACS71240 Current Sensor Carrier (3MB step)
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Drill guide for ACS711EX and ACS71240 Current Sensor Carrier (18k dxf)
This DXF drawing shows the locations of all of the board’s holes.
Recommended links
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ACS71240 datasheet
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Allegro Application Note AN296169: Characterizing System Bandwidth in Complex Current Sensor Applications
This is the application note referenced on page 16 of the ACS724 datasheet, page 22 of the ACS71240 datasheet, and page 42 of the ACS72981xLR datasheet. The ACS720 is used validate the test methods presented, but these same methods and principles would also apply to the ACS724, ACS71240, and ACS72981.
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Allegro product page for the ACS71240 Hall-based Current Sensor
Allegro product page for the ACS71240, where you can find additional application notes and other resources.
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