As it is known, bluetooth charging case for earphones is a convenient accessory that provides an easy and portable way to keep Bluetooth earphones charged and ready for use especially when they are on the move. With the increasing popularity of Bluetooth earphone, the demanding for  compact, lightweight and reliable charging case solution is also on the rise.

Chip Selection

The portable charging case here uses a JL chip-AD6973D3, designed to be easy to use, with a simple command set and development tools that make it easy to integrate into existing designs. By customization of firmware, it allows for realization of versatile functions and features.

Typical features such as:

1. Supporting 1A charging and discharging, load recognition, control, dual-channel independent discharging.

2. Supporting multiple LED displays, such as 188 segment display.

3. Dual detection of voltage and current at the same time, allowing charging to above 4.2V.

4. The input has built-in OVP, with a long-term withstand voltage of up to 32V

5. Output load recognition, identifying adjustable current and voltage.

6. Independent detection and protection of left and right earplug insertion and removal.

7. Left and right earplug status output.

8. Low battery warning and protection.

9. Dual-channel standby current<10uA.

YFM provides a range of Bluetooth ICs to choose from for various electronic design. If any innovative ideas in mind, let us help to bring it to life!