Power

Power reference design for wireless earbud battery

1st October 2018
Lanna Deamer
0

 

New, completely wireless earbuds are charged by the battery inside their carrying case - a design that requires small solution sizes and efficient power components.

Additionally, the large demands in this market are increasing the need to deliver equivalent functionality more economically.

This ultra-low power reference design exhibits a charging case battery and boost converter powered from USB input.

Features

  • 18µA ultra-low standby current
  • Supports up to 1.5A fast charging current in the charging case
  • Supports pass-through mode when input higher than the output
  • Higher than 85% charging efficiency
  • Small solution size
  • Supports down to 1mA charging accuracy in the earbuds

Click here for more information.

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