The A3240 Hall-effect switch is an extremely temperature-stable and stress-resistant sensor especially suited for operation over extended tem per a ture ranges to +150°C.
The document describes the Allegro MicroSystems A3240, a chopper-stabilized precision Hall-effect switch designed for superior high-temperature performance up to +150°C. It integrates a voltage regulator, Hall-voltage generator, amplifier, Schmitt trigger, and short-circuit protected open-collector output on a single silicon chip.
| Supply Voltage Range | 4.2 - 24 V |
|---|---|
| Output Leakage Current | - 10 mA |
| Output Saturation Voltage | 185 - 500 mV |
| Operate Point (Bop) | 35 - 50 G |
| Release Point (Bre) | 5.0 - 25 G |
The device includes a short-circuit protected open-collector output capable of sinking up to 25 mA.
An on-board regulator permits operation with supply voltages ranging from 4.2 to 24 volts.