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Micropower Unipolar Hall Effect Switch

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The AH3360 is a high sensitivity micropower Unipolar Hall effect switch IC with internal pull up and pull down capability. Designed for portable and battery powered equipment such as cellular phones and portable PCs to home appliances and industrial applications, the average supply current is only 4.3uA at 1.85V. To support portable equipment the AH3360 can operate over the supply range of 1.6V to 3.6V and uses a hibernating clocking system to minimize the power consumption. Based on chopper stabilized architecture the AH3360 provides a reliable solution over the whole operating range. To minimize PCB space the AH3360 is available in small low profile packages . The single output is activated with a South pole of sufficient magnetic field strength. When the magnetic flux density (B) perpendicular to the package is larger than operate point (Bop), the output will be turned on (pul°C low) and held until B is lower than release point (Brp). The output will remain off when there is no magnetic field. The AH3360 is available in a small low profile X1-DFN1216-4, X2-DFN2015-6 and leaded SOT553 packages.


  • Omnipolar Operation (North or South pole)
  • Supply Voltage of 1.6V to 3.6V
  • High Sensitivity
  • Micropower Operation
  • Chopper Stabilized Design Provides - Superior Temperature Stability - Minimal Switch Point Drift - Enhanced Immunity to Physical Stress
  • No External Pull-up Resistors Required
  • Good RF Noise Immunity
  • -40°C to +85°C Operating Temperature
  • High ESD capability of 8kV (Human Body Model)
  • Small Low Profile X1-DFN1216-4, X2-DFN2015-6 and leaded SOT553 Packages


  • Holster or Cover Detect for Cellular Phones and Tablet PCs
  • Open and Close Detect for Flip/Slide Cellular Phones
  • Cover or Display Switch in Low Profile Portable PCs (eg Ultrabooks)
  • Digital Still, Video Cameras and Handheld Gaming Consoles
  • Door, Lids and Tray Position Switches
  • Level, Proximity and Position Switches
  • Contact-Less Switches in Home Appliances and Industrial Applications

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP) Standard
AEC Qualified No
Type Unipolar
Outputs Single
Output Type Push-Pull
Active Output State (B > Bop) Low
Inactive Output State (B < Brp) High
Operating Voltage (V) 1.6 to 3.6
Average Supply Current (mA) 0.0043
Min Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) 14
Typ Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) 30
Max Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) 46
Min Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) 9
Typ Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) 20
Max Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) 39
Operating Ambient Temperature (°C) -40 to 85

Technical Documents

Recommended Soldering Techniques



Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2512 2021-04-16 2021-07-16 Qualified Additional Assembly & Test (A/T) Site