TIDA-050007 Reference Design

Texas Instruments

Ultra-low Standby Power Reference Design for Wireless Earbud Battery

Description

New: completely wireless earbuds are charged by the battery inside their carrying case—a unique 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
  • 18-µA ultra-low standby currentSupports up to 1.5 A fast charging current in the charging caseSupports pass-through mode when input higher than the outputHigher than 85% charging efficiencySmall solution sizeSupports down to 1mA charging accuracy in the earbuds
Applications
  • Headsets/headphones & earbuds
  • Hearing aid
  • Augmented reality glasses
  • Beauty & grooming
  • Consumer wireless module
  • Eye
  • ear
  • nose & throat exam
  • Electric toothbrush
  • Digital stethoscope
Product Categories
  • Power management