Energy Harvesting and Fault Indicator Subsystem for Overhead Fault Indicators Reference Design
TIDA-00998
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Key Document
Description
The TIDA-00998 TI Design shows multiple architectures for extending primary battery life using a secondary battery or supercapacitor with energy harvested from a current transformer (CT) or solar cells. Optimal Power management is done using efficient LED Drivers to drive series or parallel strings of LEDs to control intensity for uniform 360° visibility.
Features
- Solar energy harvesting to charge li-ion battery, autoswitching between primary and secondary battery to power LED driver and fault indicator AFE
- Interface to CT based load current harvesting subsystem to charge supercapacitor; PowerMux to autoswitch between supercapacitor and primary battery
- Drives up to six independent LEDs and three channels paralled to drive high current LED using LP55231
- Drives series connected LED strings using LM3509
- Three level intensity control based on ambient light sensed using OPT3001
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Schematic/Block Diagram
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Design Guide
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TI Devices (11)
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| Sample & Buy |
Design Kits & Evaluation Modules |
| ATL431 |
2.5-V low-IQ adjustable precision shunt regulator |
Voltage references |
Sample & Buy |
View Design Kits & Evaluation Modules |
| BQ25505 |
Ultra low power harvester power management IC with boost charger, and autonomous power multiplexor |
Battery management ICs |
Sample & Buy |
Not Available |
| CSD13202Q2 |
12V, N ch NexFET MOSFET™, single SON2x2, 9.3mOhm |
MOSFETs |
Sample & Buy |
Not Available |
| CSD25310Q2 |
-20V, P ch NexFET MOSFET™, single SON 2x2, 23.9mOhm |
MOSFETs |
Sample & Buy |
Not Available |
| LM3509 |
High efficiency boost for white LED's and/or OLED displays with dual current sinks |
LED drivers |
Sample & Buy |
View Design Kits & Evaluation Modules |
| LP55231 |
9 channel RGB / White LED driver with internal program memory and integrated charge Pump - WQFN |
LED drivers |
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| OPT3001 |
Digital ambient light sensor (ALS) with high-precision human-eye response |
Specialty sensors |
Sample & Buy |
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| PCA9306 |
2-bit bidirectional I2C bus and SMBus voltage-level shifter |
I2C ICs |
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| TLV3492 |
Dual Nanopower Push-Pull Output Comparator |
Amplifiers |
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Not Available |
| TPS2113A |
2.8-5.5-V, 84-mΩ, 1.25-A, power mux with automatic switchover and status output |
Power switches |
Sample & Buy |
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| TPS61021A |
3-A Boost Converter with 0.5-V Ultra Low Input Voltage |
Step-up (boost) regulators |
Sample & Buy |
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CAD/CAE symbols
Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.
Step 1: Download and install the free download.
Step 2: Download the Symbol and Footprint from the CAD.bxl file table.
Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.
Step 1: Download and install the free download.
Step 2: Download the Symbol and Footprint from the CAD.bxl file table.
Step 3: Open the .bxl file with the Ultra Librarian software.
You can always access the complete CAD/CAE Symbols database at https://webench.ti.com/cad/
Both PCB footprints and schematic symbols are available for download in a vendor neutral format, which can then be exported to the leading EDA CAD/CAE design tools using the Ultra Librarian Reader. The reader is available as a (free download.).
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Technical documentation
See the Important Notice and Disclaimer covering reference designs and other TI resources.
Application notes (1)
| Title | Type | Size (KB) | Date |
| | PDF | 119 |
27 Nov 2018
|
User guides (1)
| Title | Type | Size (KB) | Date |
| | PDF | 3713 |
25 May 2017
|
Design files (12)
| | ZIP | 988 |
05 Apr 2017
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| | ZIP | 2632 |
05 Apr 2017
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| | ZIP | 1351 |
05 Apr 2017
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| | ZIP | 1561 |
05 Apr 2017
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| | PDF | 747 |
05 Apr 2017
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| | PDF | 1252 |
05 Apr 2017
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| | PDF | 184 |
05 Apr 2017
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| | PDF | 466 |
05 Apr 2017
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| | PDF | 94 |
05 Apr 2017
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| | PDF | 98 |
05 Apr 2017
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| | PDF | 283 |
05 Apr 2017
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| | PDF | 388 |
05 Apr 2017
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