A1192-F

A119x and A119x-F Programmable, Chopper-Stabilized, Two-Wire Hall-Effect Switches FEATURES AND BENEFITS ▪ Choice of factory-set temperature coefficient (TC) for use with ferrite or rare-earth magnets ▪ Field programmable for optimized switchpoints ▪ AEC-Q100 automotive qualified ▫ On-board voltage regulator: 3 to 24 V operation ▪ High-speed, 4-phase chopper stabilization ▫ Low switchpoint drift throughout temperature range ▫ Low sensitivity to thermal and mechanical stresses ▪ On-chip protection ▫ Supply transient protection ▫ Reverse-battery protection ▫ Industry-leading ISO 7637-2 performance through use of proprietary, 40 V clamping structure ▪ Solid-state reliability ▪ Robust EMC and ESD performance ▪ UB package with integrated 0.1 µF bypass capacitor Packages 3-pin SOT23-W 2 mm × 3 mm × 1 mm (suffix LH) 3-pin ultramini SIP 1.5 mm × 4 mm × 3 mm (suffix UA) 2-pin ultramini SIP 1.5 mm × 4 mm × 4 mm (suffix UB) Not to scale DESCRIPTION The A119x and A119x-F comprise a family of two-wire, unipolar, Hall-effect switches, which can be trimmed by the user at end-of-line to optimize magnetic switchpoint accuracy in the application. The latter (-F option) are temperaturecompensated for use with ferrite magnets. These devices are produced on theAllegro™ advanced BiCMOS wafer fabrication process, which implements a patented high-frequency, 4-phase, chopper stabilization technique. This technique achieves magnetic stability over the full operating temperature range, and elimina...