This board is a simple carrier of Allegro’s ±75A ACS709 Hall effect-based linear current sensor with overcurrent fault output, which offers a low-resistance (~1.1 mΩ) current path and electrical isolation up to 2.1 kV RMS. The sensor has optimized accuracy for currents from -37.5 to 37.5 A, and the analog voltage output is linear for current magnitudes up to 75 A. The ratiometric output voltage is centered at VCC/2 and has a typical error of ±2%. It operates from 3 to 5.5 V, so it can interface directly to both 3.3 V and 5 V systems.
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Dimensions
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Size:
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0.82″ x 0.9″
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Weight:
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1.7 g1
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General specifications
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Current sense:
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0.018 V/A2
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Minimum logic voltage:
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3 V
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Maximum logic voltage:
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5.5 V
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Supply current:
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11 mA
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Notes:
- 1
- Without included hardware.
- 2
- When Vcc is 3.3 V. This specification is proportional to Vcc.
