Diodes Incorporated — Analog and discrete power solutions
SC59

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AH9251

Micropower Omnipolar Hall Effect Switch

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Description

The AH9251 is a medium sensitivity micropower Omnipolar hall-effect switch ICs, specifically designed for portable and battery powered consumer equipment, to home appliances and industrial applications.

Based on High/Medium sensitivity hall effect plates and chopper stabilized architecture, the AH9251 provides a reliable solution over the whole operating range.

The high and Medium sensitivity hall effect switches have been optimized to operate over the supply range of 2.5V to 5.5V and use a micropower sleep function to give an average supply current of only 8uA.

AH9251 has push pull output for flexibility.They are small low profile industry standard SC59 and TO92S packages.

Feature(s)

  • Omnipolar Operation (Switching with North or South Poles)
  • Micropower Operation
  • Built in Pull-up Resistor on the Output
  • 2.5V to 5.5V Power Supply
  • Stabilized Chopper
  • Superior Temperature Stability
  • Digital Output Signal
  • -40°C to +85°C Operating Temperature
  • ESD (HBM): 5000V
  • Small Low Profile Industry Standard SC59 and TO92S Packages
  • Totally Lead-Free & Fully RoHS Compliant
  • Halogen and Antimony Free. “Green” Device

Application(s)

  • Handheld Wireless Application Awake Switch
  • Doors, Lids, Covers and Tray Position Detect Switches
  • Liquid Level Detection
  • Battery Powered Consumer, Home Appliances and Industrial Applications

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP) Standard
AEC Qualified No
Type Omnipolar
Outputs Single
Output Type Pull-Up Resistor
Active Output State (B > Bop) Low
Inactive Output State (B < Brp) High
Operating Voltage (V) 2.5 to 5.5
Average Supply Current (mA) 0.008
Min Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) 40
Typ Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) 60
Max Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) 80
Min Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) 30
Typ Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) 50
Max Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) 70
Operating Ambient Temperature (°C) -40 to 85

Related Content

Packages

Applications

Technical Documents

Recommended Soldering Techniques

TN1.pdf

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-2695 2024-10-11 2025-01-10 Additional Wafer Source (JKFAB), AT Site (JCET), BOM and POD
PCN-2512 2021-04-16 2021-07-16 Qualified Additional Assembly & Test (A/T) Site