TIDA-00100
Indoor Light Energy Harvesting Reference Design for Bluetooth Low Energy (BLE) Beacon Subsystem
TIDA-00100
Overview
The Indoor Light Energy Harvesting Reference Design for Bluetooth Low Energy (BLE) Beacon Subsystem provides a solution where by with just the power of the typical indoor lighting in a retail environment (greater than 250 LUX) the Bluetooth Low Energy chip can broadcast BLE beacons.
This subsystem reference design is highly differentiated over existing solutions as it incorporates no batteries, thus eliminating the hassle of battery replacement, battery charging, and saving costs associated with battery maintenance. This solution also ensures that there are no constraints around installation as long as there is typical indoor lighting available. There is also no ON/OFF switch; the entire load connection and disconnection is handled by the power management IC therefore ensuring that the solution is self managing.
Features
- Solar cell (Cymbet) optimized to work in indoor lighting
- Ultra-low power with high efficiency DC/DC boost converter/charger that manages solar cell
- Continuous energy harvesting from low input sources: VIN ≥ 80-mV(Typical)
- Ultra-low quiescent current: Iq < 330-nA (typ) of the power management IC and 1-uA of BLE chip
- Cold-start voltage: VIN ≥ 330 mV (Typical)
- Programmable dynamic Maximum Power Point Tracking (MPPT)
SPECIAL NOTE: The design documentation shows the CSD75205W1015 which is no longer recommended for new deisgn (NRND). The functional equivalent is the CSD75207W15.
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
Design files & products
Design files
Download ready-to-use system files to speed your design process.
TIDU235A.PDF (1916 K)
Reference design overview and verified performance test data
TIDC349.ZIP (3898 K)
Detailed schematic diagram for design layout and components
TIDR489.PDF (164 K)
Detailed schematic diagram for design layout and components
TIDR490A.PDF (60 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDU276.PDF (199 K)
Detailed overview of design layout for component placement
TIDU277.PDF (288 K)
Detailed overview of design layout for component placement
TIDC347.ZIP (368 K)
Design file that contains information on physical board layer of design PCB
TIDU275.PDF (1406 K)
PCB layer plot file used for generating PCB design layout
Products
Includes TI products in the design and potential alternatives.
P-channel MOSFETs
CSD75207W15 — -20-V, P channel NexFET™ power MOSFET, dual Common Source WLP 1.5 mm x 1.5 mm, 27 mOhm, gate ESD pro
Data sheet: PDF | HTMLStart development
Technical documentation
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| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | Indoor Light Energy Harvesting for BLE Beacon Subsystem Design Guide (Rev. A) | Sep. 25, 2014 | |
| Technical article | Energy harvesting for smarter cities | Apr. 28, 2015 | ||
| Technical article | Energy harvesting is not new - so why isn’t everybody using it? | Mar. 23, 2015 | ||
| More literature | TIDA-00100 Firmware | Mar. 28, 2014 |
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