Allegro’s two new magnetic present sensors improve system effectivity and safety in comparison with discrete shunt-based present sensing circuits. The ACS37220 measures present as much as 200 A, whereas the ACS37041 measures present as much as 30 A. Each Corridor impact sensors are designed for functions with isolation voltage necessities under 100 V. Moreover, the ACS37041 is anticipated to be the trade’s smallest leaded magnetic present sensor.
Present shunt options want a number of elements, occupy important board area, and sometimes require additional PCB layers and heatsinks to keep up thermal efficiency, including weight, dimension, and design complexity. The ACS37220 and ACS37041 handle these challenges by offering a smaller footprint, larger effectivity, and easier integration.
The present sensors combine the features of a shunt resistor, shunt amplifier, and different passive elements right into a single, compact package deal. Housed in a 4×4-mm QFN package deal, the ACS37220 has low inside conductor resistance of 0.1 mΩ, making certain minimal energy loss and enabling it to face up to excessive inrush currents. The ACS37041, with the next conductor resistance of >1 mΩ, suits right into a compact 5-pin SOT23-W package deal.
The ACS37220 present sensor is out there now by Allegro’s distributor community. Engineering samples of the ACS37041 pre-release sensor can be found upon request.
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