STMicroelectronics NMH1000
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.FEATURES
● Standalone switch functionality (no external MCU required) with ultra‑low power consumption down to 48 nA● 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 outputs indicate the state of the switch: – Binary state hardware pin – Binary state data bit(s) in an I²C accessible register
APPLICATIONS
● Electronic system wake-up: To automatically wake an electronic device when its magnet-equipped package is opened.● Laptop lid open / closed: To trigger an action when a magnet-equipped lid of a laptop is opened or closed.
● Door or window open / closed: To trigger an action when a window or door opens or closes, or to check whether it is currently open or closed.
DESCRIPTION
DS15148 - Rev 2 - July 2026 For further information, contact your local STMicroelectronics sales office.