Diodes Menu Close
Back to Unipolar Hall Effect Switches

AH3372

High Voltage, High Sensitivity Unipolar Hall Effect Switch

Contact Sales

Log in or register to manage email notifications about changes to datasheets or PCNs for this part.

Description

The AH3372 is a high voltage high sensitivity Hall Effect Unipolar switch IC designed for proximity, position and level sensing in industrial and consumer home appliances and personal care applications. To support wide range of demanding applications, the design has been optimized to operate over the supply range of 3.0V to 28V. With chopper stabilized architecture and an internal bandgap regulator to provide temperature compensated supply for internal circuits, the AH3372 provides a reliable solution over the whole operating range. For robustness and protection, the device has a reverse blocking diode with a Zener clamp on the supply. The output has an over current limit and a Zener clamp.

The single open drain output can be switched on with South pole of sufficient strength. When the magnetic flux density (B) perpendicular to the package is larger than the operate point (Bop) the output is switched on (pulled low) and is held on until magnetic flux density B is lower than the release point (Brp). The output remains switched off for North pole fields to or no magnetic fields.

The magnetic operating and release polarity is opposite for SOT23 and SC59 packages. SOT23 and SIP-3 packages require south pole to the part marking side to operate while SC59 requires south pole to the non-part marking side.

Application(s)

  • Position and Proximity Sensing in Consumer Home Appliances, Building Automation, Office Equipments and Industrial Applications
  • Open and Close Detect
  • Position Detect
  • Level Detect
  • Flow Meters
  • Contact-less switches

Feature(s)

  • Unipolar Operation
  • High Sensitivity: Bop and Brp of +30G and +20G Typical
  • Single Open Drain Output with Over Current Limit
  • 3.0V to 28V Operating Voltage Range
  • Chopper Stabilized Design Provides
  • Superior Temperature Stability
  • Minimal Switch Point Drift
  • Enhanced Immunity to Stress
  • Good RF Noise Immunity
  • Reverse Blocking Diode
  • Zener Clamp on Supply and Output Pins
  • -40°C to +125°C Operating Temperature
  • ESD: HBM > 6kV
  • Industry Standard SC59, SOT23 and SIP-3 Packages
  • Totally Lead-Free & Fully RoHS Compliant
  • Halogen and Antimony Free. “Green” Device

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Standard
Qualified to AEC-Q10x No
Output Type Single Open Drain, Active Low
Operating Voltage (V) 3 to 28 V
Average Supply Current (µA) 3 mA
Operating Point Bop (Bops +ve/ Bopn -ve) Gauss (Min) 15
Operating Point Bop (Bops +ve/ Bopn -ve) Gauss (Typ) 30
Operating Point Bop (Bops +ve/ Bopn -ve) Gauss (Max) 45
Release Point Brp (Brps +ve/Brpn -ve) Gauss (Min) 5
Release Point Brp (Brps +ve/Brpn -ve) Gauss (Typ) 20
Release Point Brp (Brps +ve/Brpn -ve) Gauss (Max) 35
Operating Ambient Temperature (°C) -40 to 125 °C

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Orderable Part Number Buy from Distributor / Contact Sales Request Samples
AH3372-P-B

AH3372-P-B

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 10 9/19/2021 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample
AH3372-SA-7

AH3372-SA-7

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Arrow Electronics 3000 9/19/2021 United States Buy Now
Request Sample