Description

AH180 is a micro-power Omnipolar Hall-Effect switch designed for portable and battery powered equipment such cellular phones, PDAs and portable PCs. Based on two Hall-Effect plates and a chopper stabilized architecture the AH180 provides a reliable solution over the whole operating ange. 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 24uW with a supply of 3V.

Features

• Omnipolar (north or south pole) operation

• Micropower operation

• Single open drain output

• 2.5V to 5.5V operating voltage

• 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) ＞5KV for DFN2020-6, DFN2020-3 ＞6KV for SIP-3L and SC59

• SIP-3L, SC59 (commonly known as SOT23 in Asia) DFN2020-6, DFN2020-3 packages

• Green Molding Compound (No Br, Sb)

Applications

• Cover switch in clam-shell cellular phones

• Cover switch in Notebook PC/PDA

• Contact-less switch in consumer products