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±12.5A Linear Current Sensor

Product Code: MR003-009.2
Excl. VAT: €6.06 Incl. VAT: €7.27
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This board carries the Allegro's ACS711ELCTR-12B-T hall effect-based ±12.5A linear current sensor, which offers a low-resistance (~1.2mΩ).

 This board carries the Allegro's ACS711ELCTR-12B-T hall effect-based linear current sensor, which offers a low-resistance (~1.2mΩ) current path.

The sensor operates at 3.3V (up to 5V) and its analog voltage output has a sensitivity of 110mV/A centered at 1.65V (if powered at 3.3V) with a typical error of ±1% and a 100kHz bandwidth.

Optimized bidirectional current range is from -12.5A to +12.5A, but its robustness allows survival of the device at up to 5× overcurrent conditions. Top silkscreen shows the direction that is interpreted as positive current flow.

The FLT pin trips when measured current reaches ±100% of its full-scale. It is an open-drain pin so it is necessary use an external pull-up resistor. Its value is active low.

Specification

Supply voltage +3.3V to +5V
Supply current 4mA typ. (5.5mA max.)
Current range from -12.5A to +12.5A
Internal resistance 1.2mΩ
Sensitivity 110mV/A
Typical output error ±1%
Operating temperature -40°C / +85°C
Interface Analog
Dimensions 1.1” x 0.8”(27.9 x 20.3 mm)
Weight 0.12 oz (3.5 g)

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Whenever possible, items which are in stock are dispatched the same day, or the next working day.

Large and/or heavy items are dispatched by UPS courier service and these orders must be placed before 15:00hrs (GMT) to ensure same day dispatch.

Small items are normally sent using a Royal Mail service for UK orders, and International Airmail or UPS for overseas orders

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