DIODES AH1806-W-7

The AH1806 is a high- sensitivity, micro- power Omnipolar Hall effect switch IC, designed for portable and battery powered consumer to home appliance and industrial applications such as smart- meter magnetic tamper detection. Based on two sensitive Hall effect plates and a copper stabilized architecture the AH1806 provides a reliable solution over the whole operating range. To support portable and battery powered equipment, the design has been optimized to operate over the supply range of 2.5V to 5.5V and consumes only 24μW with a supply of 3V. The single- open- drain output can be switched on with either a North or South pole of sufficient field strength. When the magnetic flux density (B) perpendicular to the package is larger than operate point (Bop) the output is switched on (pulled low). The output is turned off when B becomes lower than the release point (Brp). The output will remain off when there is no magnetic field.

• Omnipolar (North or South Pole) Operation
• High Sensitivity
• Single Open Drain Output
• Micropower Operation
• 2.5V to 5.5V Operating Range
• Chopper Stabilized Design Provides:
  • Superior Temperature Stability
  • Minimal Switch Point Drift
  • Enhanced Immunity to Stress
  • Good RF Noise Immunity
• -40°C to +85°C Operating Temperature
• ESD (HBM) > 6KV
• Small Low Profile SOT553 and Industry Standard SC59, SIP-3 (Ammo Pack) and SIP-3 (Bulk Pack) Packages
• Totally Lead-Free & Fully RoHS Compliant
• Halogen and Antimony Free. "Green" Device

• Doors, Lids, Cover and Tray Position Detect Switches
• Display Switch for Portable PCs and Tablets
• On/Off Switch for PDAs and Digital Cameras
• Liquid Level Detection
• Smart Meters
• Position, Proximity and Level Detection Contact-Less Switch in Battery Powered Consumer, Home Appliances and Industrial Applications