A1244 - Allegro MicroSystems

A1244 Two Wire Hall-Effect Latch

The A1244 is a two-wire Hall-effect latch. The devices are produced on theAllegro™ advanced BiCMOS wafer fabrication process, which implements a high-frequency, 4-phase, chopper stabilization technique. This technique achieves magnetic stability over the full operating temperature range, and eliminates offsets inherent in devices with a single Hall element t.

Features

▪ AEC-Q100 automotive qualified ▪ 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 ▪ On-board voltage regulator ▫ 3 to 24 V operation ▪ Solid-state reliability ▪ Robust EMC and ESD performance ▪ Industry-leading ISO 7637-2 performance through use of proprietary, 40 V clamping structures PACKAGES: 3-pin ultra-mini SIP 1.5 mm × 4 mm × 3 mm (suffix UA) 3-pin SOT23-W 2 mm × 3 mm × 1 mm (suffix LH) DESCRIPTION The A1244.