LDC0851HDSGR

The LDC0851HDSGR from Texas Instruments is a close-range inductive switch designed for simple, contactless applications like presence detection and event counting. It triggers when a conductive object enters the sensing coil's proximity. The differential implementation ensures reliable switching by preventing false triggers due to environmental factors like temperature or humidity.

This inductive switch operates with a supply voltage range of 1.8V to 3.3V and has an operating temperature range of -40°C to 125°C. Key electrical features include an average supply current of less than 20µA at 10sps, a shutdown supply current of 140nA, and a sample rate up to 4ksps. The output type is push-pull, and the threshold tolerance is less than 1% of the coil diameter.

Inductive sensing technology provides reliable and accurate sensing even in harsh environments with dirt, oil, or moisture. The solid-state switching eliminates failures associated with mechanical switches. The LDC0851HDSGR is housed in an 8-WDFN Exposed Pad package suitable for surface mounting.

This device is ideal for applications requiring simple, robust sensing without the need for a microcontroller. Its design is insensitive to DC magnetic fields, further enhancing its reliability in various conditions.