Low Power Angle Sensor Use Case: Foldable Phones
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In this use case, we’ll examine the application of MagAlpha Angle Sensors in foldable phones.
These angle sensors allow accurate angle detection on the side of the hinge versus the traditional magnet solution on the bezel or under the display.
As the electronics industry for smartphones and tablets moves towards bezel-less and foldable display designs, new challenges have arisen that require engineers to address space constraints. Flexible displays in foldable phones benefit from angle sensors with a combination of low-power, long battery life, small solution size, and rotational accuracy.
MPS’s MagAlpha MA782 angle sensor allows accurate angle detection on the side of the hinge versus the traditional magnet solution on the bezel, which is critical for new, foldable phone designs. Using MPS’s Hall sensor technology, this low-power angle sensor includes wake-on-change for precise automatic power on/off as the phone opens and closes. In addition, the MA782 is available in a compact (2mmx2mmx0.6mm) package.
- Precision Angle Detection Better than 1°
- Absolute Angle Output 0-360°
- 8-12 Bit Resolution (±3σ)
- Ultra-Low Power Consumption (<0.5µA ) Standby)
- Ability to Wake Up Microcontroller on Angle Change
- Smallest Footprint in 2mmx2mmx0.6mm) UTQFN
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