Hall-effect latch protect against HV transients

Hall-effect latch protect against HV transients

The A1244 two-wire Hall-effect latch is programmed at the factory to optimize the magnetic switch point accuracy. The part uses the same patented high frequency, 4-phase, chopper-stabilization technique that is used on complementary devices in this family (unipolar switches). It offers robust EMC and ESD performance, as well as ISO 7637-2 performance through use of proprietary, 40-V clamping structures.

The company’s advanced BiCMOS wafer fabrication process is used to achieve magnetic stability over temperature and to eliminate offset inherent in single-element devices, when exposed to harsh-application environments. The A1244 will has two ICC (low) options: -I1: 5.0 to 6.9 mA, and -I2: 2.0 to 5.0 mA. It is offered in two package styles. The “LH” is a SOT-23W style, miniature low profile package for surface-mount applications. The “UA” is a TO-92 style, three-lead ultra-mini SIP for through-hole mounting.(From $0.58 ea/1,000 — available now)

By Christina Nickolas

Allegro MicroSystems , Worcester , MA
Sales 508-853-5000

www.allegromicro.com