NMH1000 Description
The NMH1000 is a hall effect magnetic field switch. The switch is most sensitive to a vertical field passing through the top-to-bottom surfaces, orthogonal to the plane of the application printed circuit board. The switch operates at low voltage, low current, low output data rate, and is a small physical size.
NMH1000 Key Features
- Threshold selection 3-state hardware pin
- Threshold selection data bit(s) in an I2C accessible register
- Sample rate selection 3-state hardware pin
- Sample rate selection data bit(s) in an I2C accessible register
- Mode selection hardware pin to select between standalone or I2C serial interface
- Mode selection data bit(s) in an I2C accessible register
- Two types of output indicate the absence of a magnetic field as pared to an internally set threshold
- Binary state hardware pin
- Binary state data bit(s), configurable as assert-high or assert-low, in an I2C accessible register
NMH1000 Applications
- Electronic system wake-up: Detecting the proximity vs. lack of proximity to an included magnet when the electronics are removed from its delivery packaging, to
- Laptop lid open / closed: Detecting the proximity vs. lack of proximity to a magnet mounted to laptop lid, to trigger a status change, for example turn on / off
- Door or window open / closed: Detecting the proximity vs. lack of proximity to a magnet mounted to a door, lid, or window, to trigger a status change, for examp