AH1812
Description
The AH1812 is a high sensitivity micropower Omnipolar Hall effect switch IC with an open drain output. Designed for portable and battery powered equipment such as cellular phones and portable PCs, the average supply current is only 4.3µA at 1.85V. To support potable equipment the AH1812 can operate over the supply range of 1.6V to 3.6V and uses a hibernating clocking system to minimize the power consumption. To minimize PCB space the AH1812 is available in small low profile X1-DFN1216-4 package
The open drain output is activated with either a North or South pole of sufficient magnetic field strength. When the magnetic flux density (B) perpendicular to the package is larger than operate point (Bop), the output will be turned on (pulled low). The output is turned off when B bees lower than the release point (Brp). The output will remain off when there is no magnetic field.
Pin Assignments
(Top View)
VDD 1
4 OUTPUT
GND 2
3 NC
X1-DFN1216-4
Features
- Omnipolar...
