The A3282 Hall-effect sensor is a temperature stable, stress-resistant latch. It achieves superior high-temperature performance by utilizing Allegro's patented dynamic offset cancellation that reduces the offset voltage caused by device overmolding, temperature dependencies, and thermal stress. The A3282 complements the current Allegro family of chopper-stabilized latching sensors.
The A3282 is a temperature stable, stress-resistant latch designed by Allegro MicroSystems. It utilizes patented dynamic offset cancellation with chopper stabilization to reduce voltage errors caused by overmolding and thermal stress. The device requires both south and north polarity magnetic fields for operation, latching on when exposed to a sufficient south field and switching off only when a sufficient north field is present.
| Output Leakage Current | -10 mA |
|---|---|
| Output On Voltage | 250 to 500 mV |
| Chopping Frequency | 200 kHz |
| Operate Point (South) | 70 to 150 G |
| Release Point (North) | -150 to -70 G |
| Hysteresis | 140 to 300 G |
The device is available in two packages: Package LH, a 3-pin SOT23W surface-mount style, and Package UA, a 3-pin SIP through-hole style.
The E temperature range operates from -40°C to 85°C, and the L temperature range operates from -40°C to 150°C.