ACS772KCB-150B-PFF-T
Overview
The ACS772KCB-150B-PFF-T is a high-accuracy, bidirectional Hall-effect current sensor IC designed for high-current sensing up to 150A. It features reinforced galvanic isolation and an ultra-low resistance conductor (100 micro-ohms) to minimize power loss in high-power applications. This AEC-Q100 Grade 1 qualified device provides a ratiometric analog output proportional to the sensed AC or DC current.
Why Choose This Part
The sensor offers an industry-leading 2.5us response time and a wide 200kHz bandwidth, making it suitable for fast-switching power electronics. Its integrated shield significantly reduces capacitive coupling from the high-voltage conductor to the low-voltage circuitry, ensuring low noise and stable offset even in high dV/dt environments. The 100 micro-ohm internal conductor allows for high current measurement without the thermal penalties associated with traditional shunt resistors.
Applications
Key Specifications
Getting Started
To evaluate this sensor, design a PCB with wide copper traces to handle the 150A load and ensure the PFF package is properly soldered for thermal management. Connect the VCC pin to a stable 5V supply and monitor the VOUT pin using an ADC or oscilloscope to observe the 13.33mV/A ratiometric signal. Reference Allegro's application notes for layout techniques to maintain galvanic isolation and minimize external magnetic interference.
