A3240 is a Hall-effect switch that can work at high temperature.
The Allegro A3240 is a precision, chopper-stabilized Hall-effect switch designed for operation over extended temperature ranges up to +150°C. It integrates a voltage regulator, Hall voltage generator, amplifier, and short-circuit protected open-collector output on a single silicon chip. The device features dynamic offset cancellation to reduce residual offset voltage caused by overmolding and thermal stress.
| Supply Voltage Range | 4.2 to 24 V |
|---|---|
| Continuous Output Current | 25 mA |
| Output Saturation Voltage | 185 mV |
| Operate Point | 35 G |
| Release Point | 25 G |
| Operating Temperature Range | -40°C to +150°C |
The operate point threshold (Bop) is typically 35 G.
The release point (Bre) is typically 25 G.
Yes, the device includes an on-board voltage regulator.