The TIDA-00720 reference design shows a method to extend battery life by power cycling. The power cycling concept consist in time interval period that enables the power management devices for just enough time for the microcontroller to execute the program, transmit data or collect data. Some of the MCUs have sleep modes with low stand-by currents, but the power management devices will continue to dissipate power if they are left enabled. The current leakage is higher during the enabled mode and will add up to the total power waste during the MCU sleep cycles.
This design is ideal for systems that operate for various years without replacing the battery; these systems do not need to run constantly instead they operate in periodic intervals of seconds, minutes or even an hour in between operating time.
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
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 | Power Cycling to Extend Battery Life Using an Ultra-Low IQ LDO Design Guide | Sep. 22, 2015 | |
| Technical article | How LDOs contribute to power efficiency | PDF | HTML | May 13, 2016 |
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