SparkFun Soft Power Switch - JST 2mm

The SparkFun Soft Power Switch is a versatile and efficient hard on/off switch with software feedback and control, similar to a laptop's power button. A simple press activates the system, while another press, with microcontroller intervention, can turn it off. For emergencies, holding the button for around 10 seconds forces a power-down. Ideal for projects with enclosed batteries, this version features JST 2mm battery connectors and is based on a digital design from Texas Instruments. It includes a self-resetting 2A fuse for overcurrent protection, LEDs for visual feedback, and a low quiescent current draw to conserve battery life.

This switch is perfect for projects where space is tight and a reliable power button is essential. By connecting the PUSH and OFF pins to a microcontroller, you can monitor button activity and execute a controlled shutdown, ensuring your system powers down smoothly and safely. The ability to customize wake-up and power-down times allows you to tailor the user experience to your specific needs.

One of the standout features is its support for battery charging, enabling you to continue powering your project while simultaneously recharging the battery. This makes it an excellent choice for portable devices or remote installations where maintaining power is crucial. Operating with voltages up to 5.5V, it is specifically designed for DC loads, making it unsuitable for AC applications. The compact and efficient design ensures it integrates seamlessly into your project, providing reliable power management with minimal energy consumption.