This reference design is for smartwatch battery management solution (BMS). It is suitable for low-power wearable devices like smartwatch applications. The design includes an ultra-low current 1 cell Li-ion linear charger; a highly integrated Qi-compliant wireless power receiver; a cost-effective voltage and current protection integrated circuit; a system-side with integrated sense resistor battery fuel gauge and a booster with output up to 28 V for LCD display devices.
The design is implemented in a small size (20 mm x 29 mm) PCB; its input power can be either from a micro-USB connector or Qi-compliant wireless power transmitter and the wireless power transmitter will be turned off whenever 5-V power supply from micro-USB connector is detected.
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Reference design overview and verified performance test data
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Detailed overview of design layout for component placement
Files used for 3D models or 2D drawings of IC components
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | Battery Management for Smartwatch and Wearable Applications Design Guide | Nov. 09, 2015 |
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