Omnipolar Hall Effect Sensor
AH180-WG-7 Diodes Omnipolar Hall Effect Sensor 3-Pin-SIP-3L Package
AH180-WG-7 Diodes Omnipolar Hall Effect Sensor 3-Pin-SIP-3L Package AH180 is a micro-power Omnipolar Hall-Effect switch designed for portable and battery-powered equipment such as 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 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 24uW with a supply of 3V. The single open-drain output switches on with either a north or south pole of sufficient strength. When the magnetic flux density (B) is larger than the operate point (Bop), the output is switched on (Output pin is 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.
Applications:
- Sensing & Instrumentation
- Communications & Networking
- Computers & Computer Peripherals
- Consumer Electronics
- Cover switch in clam-shell cellular phones
- Cover switch in Notebook PC/PDA
- Contact-less switch in consumer products
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