
The A31015 is a ratiometric linear Hall-effect sensor engineered to extend battery life in space-constrained portable applications through industry-leading power management.
Typical Application Circuit

Top Features
- Nanopower Duty Cycling: Active-low EN pin reduces average power to <1µW at 10 Hz for maximum battery life.
- Ultra-Low Sleep Mode: Consumes <1 nA in sleep mode with high-impedance output, preventing idle battery drain.
- Rapid Wake-Up: Fast <13 µs power-on ensures instant measurement readiness for high system responsiveness.
- Space-Saving DFN-4: Tiny 1.54 mm² footprint (<0.5 mm height) is ideal for earbuds and game controller handles.