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LN4912

Part Number	LN4912
Manufacturer	natlinear
Description	Ultra-Sensitive Hall Effect Switch
Published	Dec 4, 2018
Detailed Description	Micropower, Ultra-Sensitive Hall Effect Switch LN4912 ■ General Description LN4912 is with two Hall effect plates and ...
Datasheet	LN4912 PDF File

Overview

Micropower, Ultra-Sensitive Hall Effect Switch LN4912 ■ General Description LN4912 is with two Hall effect plates and a CMOS output driver, mainly designed for battery–powered, hand-held equipment (such as Cellular and Cordless Phone, PDA).
E.
g.
as an On/Off switch in Cellular Flip-Phones, with battery operating voltages of 2.
4V-5.
5V.
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.
■ Typical Application Circuit VDD 1uF LN49...

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