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ACS72981LLRATR-050B3 Current Sensor Large Carrier -50A to +50A, 3.3V

Pololu item #: 5270
Brand: Pololu supply outlook
Status: Active and Preferred 
RoHS 3 compliant


Price break Unit price (US$)
1 16.95
5 15.59
25 14.35
100 13.20


backorders allowed

This is the large version of a simple carrier for Allegro’s ACS72981LLRATR-050B3 Hall effect-based, electrically isolated current sensor, which offers a low-resistance (~0.2 mΩ) IC current path and a 250 kHz bandwidth with <2 µs response time.

Part Suffix Range Supply Voltage Sensitivity @ 3.3 V Zero Point @ 3.3 V Size
050B3 ±50 A (bidirectional) 3.0 V to 3.6 V 26.4 mV/A 1.65 V 1.4″×1.2″

Alternatives available with variations in these parameter(s): typical operating voltage current range size Select variant…

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Dimensions

Size: 1.4″ × 1.2″
Weight: 4.2 g

General specifications

Typical operating voltage: 3.3 V
Current sense: 26.4 mV/A1
Minimum logic voltage: 3.0 V
Maximum logic voltage: 3.6 V
Supply current: 14 mA2
Current range: -​50A to +50A (bidirectional 50A), 3.3V
Current sensor: Allegro ACS72981LLRATR-050B3

Identifying markings

PCB dev codes: cs04b
Other PCB markings: 0J14823
Other PCB markings: 3V3 B05

Notes:

1
At VCC = 3.3 V.
2
Typical.

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