Worcester, Mass. As a companion product to its existing ACS750 devices, Allegro Microsystems, Inc.'s new ACS752 family of current sensors provides a higher-bandwidth of 50 kHz and improved accuracy.
Available in 50- and 100-amp versions, the current sensors provide 3 kV isolation and operate from a 5-volt supply. Featuring ultra-low power loss, the sensors exhibit a low resistance of 130μ Ω for the primary conductor. The operating temperature range is -20°C to 85°C.
The bidirectional ACS752 sensors, packaged in a 14 x 22 x 7-mm footprint, consist of a precision linear Hall IC optimized to an internal magnetic circuit to increase device sensitivity. The combination of a precisely controlled self-aligning assembly process, and the factory programmed precision of the linear Hall sensor results in improved accuracy, very low thermal drift and high product uniformity, said the company.
The lead-free, PC-mountable package provides a fully integrated current sensing solution. The package consists of a two-pin power leadframe that passes current through a ferrite core and past the sensing element of a three-lead Hall IC. Since it integrates the current path, it eliminates the need to design a magnetic circuit or thread the conductor through the device, and requires minimal effort to implement on a PC board in a high-volume production environment, said the company.
Industrial, consumer and telecommunications applications include AC motor control, battery management, UPS and emergency lighting, welding equipment, power distribution, white goods, fitness equipment, and electric vehicles.
The ACS752 family is priced at $7.10 in quantities up to 1,000. Delivery is eight to ten weeks. Request samples from Allegro's web site.
Call (508) 853-5000