The Holtek BA76220 is a highly integrated passive infrared (PIR) human detection IC, ideal for smart doorbells, motion-sensing switches, PIR lamps, and home automation devices. It offers adjustable sensitivity, configurable lighting time, and day/night mode, which can be set via external circuits or a single-wire MCU/programmer interface, simplifying design and improving system efficiency.

With a built-in LDO regulator and ultra-low standby current of 12µA, the BA76220 delivers reliable detection while extending battery life for energy-sensitive applications. The high-active output and effective trigger width >24ms ensure precise human detection.

Key Benefits:

   *  Low-power, long battery life

   *  Flexible sensitivity and timing control

   *  Simplified external circuitry for faster development

   *  Suitable for smart home, security, and energy-saving applications

Package & Specs: 16-pin NSOP, VDD 2.2–5.5V, adjustable sensitivity, <3s CDS debounce time

AXTEK, as Holtek's official solution partner, provides sample requests and development support, helping you bring your smart home and security projects to life faster.