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AH180 is comprised of two Hall effect plates and an open-drain output driver, mainly designed for battery-operation, hand-held equipment (such as Cellular and Cordless Phone, PDA). The total power consumption in normal operation is typically 24µW with a 3V power source. Either north or south pole of sufficient strength will turn the output on. The output will be turned off under no magnetic field. While the magnetic flux density (B) is larger than operating point (Bop), the output will be turned on (low), the output is held until B is lower than release point (Brp), then turned off.
Cover switch in clam-shell cellular phones
Cover switch in Notebook PC/PDA
Contact-less switch in consumer products
Compliance(Only Automotive supports PPAP)
Active Output State
(B > Bop)
(B < Brp)
2.5 to 5.5
Average Supply Current (mA)
Typ Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss)
Max Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss)
Min Release Point Brp (Brps +ve/ Brpn -ve) (Gauss)
Typ Release Point Brp (Brps +ve/ Brpn -ve) (Gauss)