General Description

AH1801 is a Micropower, Ultra-sensitive Hall Effect Switch, which is with two Hall effect plates and a output driver, mainly designed for battery–operation, hand-held equipment (such as Cellular and Cordless Phone, PDA). The total operation power is down to 24uW in the 3V supply.

Features

• Micropower operation

• Operation with North or South Pole

• 2.5V to 5.5V battery operation

• Inverted Output-on without Magnet present

• Chopper stabilized

• Superior temperature stability

• Extremely Low Switch-Point Drift

• Insensitive to Physical Stress

• Good RF noise immunity

• -40°C to 85°C operating temperature

• Low profile 3 pin SC59 (commonly known as SOT23 in Asia) and DFN2020-3, DFN2020-6 package

• ESD (HBM) ＞ 5KV for DFN2020-3 and DFN2020-6

＞ 6KV for SC59

• SC59, DFN2020-3 and DFN2020-6: Available in “Green” Molding Compound (No Br, Sb)

• Lead Free Finish / RoHS Compliant (Note 1)

Applications

• Cellular phone

• PDA

• Cordless phone