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The ACS772ECBTV-250B-PFF-T is an automotive-grade, 200KHz bandwidth current sensor IC in Allegro's preferred CB package that offers a wide current sensing range of 50A to 400A and very low power loss due to a conductive path with an internal resistance of only 100μΩ. The ACS772 in the CB package family offers the highest performance with +/- 2.1% accuracy from room temperature to high temperature over the life of the IC. 2.5 µs response time enables overcurrent fault detection in safety-critical applications, while enhanced galvanic isolation reduces material usage. The device operates from a 5 V supply (ACS772) or 3.3 V (ACS773).

The ACS772ECBTV-250B-PFF-T is ideally suited for automotive applications such as OBC, DC/DC converter and inverter control, as well as industrial applications such as motor control, load detection and management, and power supplies.

The sensor is available in an Allegro custom CB package with a very small package size; the sensor's ICC and accuracy are better than current sensor modules offered by competing products.The ACS772's response time of 2.5μS is the fastest response time IC available in an Allegro CB custom package.

Characteristics

Complies with AEC-Q100 Level 1

Output response time 2.5 μs typical

5 V supply operation

Ultra-low power loss: 100 µΩ internal conduction resistance

Enhanced current isolation for economic sensing of high-side currents in high-voltage systems

4800 Vrms Dielectric strength certified to UL60950-1

Industry-leading noise performance and significantly improved bandwidth due to proprietary amplifier and filter design techniques

Integrated shielding significantly reduces capacitive coupling from the current conductor to the wafer due to high dV/dt signals and prevents bias drift in high-side, high-voltage applications.

Dramatically improves total output error by digitally programming and compensating for gain and bias over the full operating temperature range

Small package size for easy installation

Highly reliable monolithic Hall ICs

Output voltage proportional to AC or DC current

Factory calibrated for accuracy

Extremely stable output offset voltage

Target application:

OBC

Electric vehicle charging stations

Inverters

Power supplies

Overcurrent fault protection

Any high accuracy current sensing application requiring greater than 50A (continuous), 2.5μs response time and high isolation.

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