Reference Designs
Ultra-low Standby Power Reference Design for Wireless Earbud Battery
Texas Instruments
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
End Equipment Reference Diagrams
Application Area
End Equipment