A1153-F

A1152-F, A1153-F, A1155-F, and A1156-F Chopper-Stabilized Two-Wire Hall-Effect Switches FEATURES AND BENEFITS ▪ AEC-Q100 automotive qualified ▪ Factory-set temperature coefficient (TC) for use with ferrite magnets ▪ 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 Continued on the next page… PACKAGE: 2-Pin, Ultra-Mini SIP (suffix UB) 1.5 mm × 4 mm × 4 mm DESCRIPTION The A1152-F, A1153-F, A1155-F, and A1156-F comprise a family of two-wire, unipolar, Hall-effect switches, which are factory-trimmed to optimize magnetic switchpoint accuracy. These devices are produced on the Allegro™ 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 that are exposed to harsh application environments. The A115x family has a number of automotive applications. These include sensing seat track position, seat belt buckle presence, hood/trunk latching, and shift selector position. Two-wire unipolar switches are particularly advantageous in cost-sensitive applications because they require one less wire for operation versus the ...