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Small Low Power Unidirectional Linear Hall-Effect with Sleep Mode

A31010

EH-DFN

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Description

Top Features

Typical Applications

Packaging

The A31010 family of unipolar linear Hall-effect sensor ICs is an ideal part for battery powered head-on (i.e. pushbutton) and slide-by (i.e. slider) motion detection present in game controller triggers, keyboards, security systems, liquid level, and other consumer applications. 

The unipolar operation outputs a voltage proportional to the applied positive magnetic field ensuring maximum resolution while the external Vref pin provides flexibility for the output reference enabling operation in a ratiometric or non-ratiometric mode.

The fast wakeup and sleep time allows the A31010 to transition quickly between sleep and awake modes and the user-controlled sleep pin enables flexible duty cycles to optimize power consumption. These features, coupled with a low supply voltage rating down to 2.5 V, make this IC ideal for battery-powered applications while enabling easy integration to 3.3 V microcontrollers.

These devices are available in a small, lead free, 2 mm × 3 mm, 0.75 mm height DFN-6 package to minimize PCB board area.

  • User-controlled sleep mode with fast (< 60 µs) wakeup time for lag-free power savings
  • 3.2 mA active and 25 µA sleep current reduces total power consumption and extends battery life
  • Operates down to 2.5 V supply for battery applications
  • Low quiescent voltage output maximizes output range and resolution
  • Small size DFN-6 (2 mm x 3 mm x 0.75 mm) for minimal board area
  • Game controllers
  • Joysticks
  • Triggers
  • Personal electronics
  • Keyboards
  • Virtual and augmented reality devices
  • Human-machine interfaces

These devices are available in a small, lead free, 2 mm × 3 mm, 0.75 mm height DFN-6 package to minimize PCB board area (suffix EH). 

EH Package Documentation

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Part Number Specifications and Availability

Part Number
Description
Status
Technology
Output Type
Supply Voltage Min (V)
2
23
3
≥
≤
Supply Voltage Max (V)
3
34
4
≥
≤
Typical Sensitivity (mV/G)
Select all
3.78
10
Typical Sensitivity (mV/mT)
Sensitivity Error (%)
Quiescent Output (Typical, V)
Select all
6.47% Vref
Output Bandwidth (Typical, kHz)
Select all
10
Temp. Ranges
Select all
-20°C to 85°C
Programming
Select all
Factory Programmed
Package
Select all
6-Pin MLP/DFN
 
Samples
Part Composition / RoHS DataCheck StockECAD
A31010SEHALT-10HallAnalog2.653.50101-20°C to 85°CFactory Programmed6-Pin MLP/DFNView DataCheck Distributor StockECAD model image
A31010SEHALT-4HallAnalog2.653.503.781-20°C to 85°CFactory Programmed6-Pin MLP/DFNView DataCheck Distributor StockECAD model image
Part Number
Technology
Output Type
Supply Voltage Min
(V)
Supply Voltage Max
(V)
Typical Sensitivity (mV/G)
Sensitivity Error (%)
Temp. Ranges
Programming
Package
A31010SEHALT-10HallAnalog2.653.50101-20°C to 85°CFactory Programmed6-Pin MLP/DFN
A31010SEHALT-4HallAnalog2.653.503.781-20°C to 85°CFactory Programmed6-Pin MLP/DFN

Documentation and Resources

Documentation

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Application Note
Unipolar Hall-Effect Sensor IC Basics