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current flowing through the primary conductor of a compact 7-pin QFN package. The small 4 mm × 4 mm sensor has very low internal conductor
resistance, <100 μΩ, and is designed to measure currents up to
200 A. The current is sensed differentially via two Hall plates that provide common-mode field rejection and optimized performance in the presence of external magnetic fields. The ACS37220 is factory-calibrated for high accuracy over the entire operating temperature range. It is an automotive grade 0 device capable of operating between –40°C and 150°C ambient temperatures. 5 V and 3.3 V supply voltage variants are available with current sensing ranges from 100 A to 200 A. An overcurrent fault output, with user-configurable threshold, provides fast short-circuit detection for enhanced system protection. The ACS37220 is a lead (Pb) free device plated with 100% matte tin, compatible with standard lead-free printed circuit board assembly processes. .....