A3251 Datasheet - Allegro MicroSystems

A3251 Chopper-Stabilized Unipolar Hall-Effect Switches

The A3250 and A3251 are field-programmable, chopperstabilized, unipolar Hall-effect switches designed for use in high-temperature applications. These devices use a chopper-stabilization technique to eliminate offset inherent in single-element devices. The A3250 and A3251 are externally programmable .

A3251 Features

* ▪ Chopper stabilization for stable switchpoints throughout operating temperature range ▪ Externally programmable operate point (through VCC pin) ▪ On-board voltage regulator for 4.2 V to 24 V operation ▪ On-chip protection against: ▫ Supply transients ▫ Output short-circuits ▫ Reverse-battery condit

A3251 Datasheet (300.20 KB)