AH1884 Datasheet | Diodes Incorporated

MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Description Pin Assignments AH1884 is with two Hall effect plates and dual CMOS output driver, mainly designed for battery- operation, hand-held equipment (such as Cellular and Cordless Phone, PDA). The total operation power is down to 15u W in the 1.8V supply. 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 operate point (Bop), the output will be turned on (low), the output is held until B is lower than release point (Brp), then turned off. ( Top View ) Out 2 1 5 Out 1 GND 2 NC 3 4 Vdd SOT553 Features Applications - Micropower operation - Operation with North or South Pole - 1.65V to 3.3V battery operation - 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 - ESD ＞ 4KV in human body mode - Package: SOT553 - “Green” Molding pound Typical Application Circuit - Cellular phone - PDA - Cordless...