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ACS72981LLRATR-100U3 Current Sensor Large Carrier 0A to 100A, 3.3V
This is the large version of a simple carrier for Allegro’s ACS72981LLRATR-100U3 Hall effect-based, electrically isolated current sensor, which offers a low-resistance (~0.2 mΩ) current path and a high 250 kHz bandwidth for fast response times.
| Part Suffix | Range | Supply Voltage | Sensitivity @ 3.3 V | Zero Point @ 3.3 V | Size |
|---|---|---|---|---|---|
| 100U3 | 0-100 A (unidirectional) | 3.0 V to 3.6 V | 26.4 mV/A | 0.33 V | 1.4″×1.2″ |
Alternatives available with variations in these parameter(s): typical operating voltage current range size Select variant…
Compare all products in ACS72981 Current Sensor Large Carriers.
| Description | Specs (12) | Pictures (14) | Resources (6) | FAQs (0) | On the blog (0) |
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File downloads
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Dimension diagrams of the ACS72981xLR Current Sensor Carriers (400k pdf)
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3D model of the ACS72981xLR Current Sensor Large Carriers (3MB step)
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Drill guide for the ACS72981xLR Current Sensor Large Carriers (19k dxf)
This DXF drawing shows the locations of all of the board’s holes.
Recommended links
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ACS72981 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 ACS72981 Hall-based Current Sensor
Allegro product page for the ACS72981, where you can find additional application notes and other resources.
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