The high current fully integrated ACS772/3 current sensor “CB” package family from Allegro MicroSystems now benefits from new ease-of-use enhancements. These surface-mount, automotive grade high voltage isolation current sensors already provide economical and precise solutions for both AC and DC current sensing up to 400A. The surface-mount leadform option is an answer to customer challenges by providing a flexible solution for space constrained applications.
The enhanced feature set helps engineers simplify their bill of materials and improve efficiency in tough applications. The current sensors now benefit from a small form footprint, a fast 2.5µS response time (allows overcurrent fault detection), improved working isolation voltages up to 1300kV+ for basic DC voltage, and 650V+ for reinforced isolation DC voltage. There is no need for opto-isolators or other isolation techniques. Last, they have an accuracy of +/-2.1% over the lifetime of the IC.