Solar Street Light with Integrated MPPT Charger Reference Design

(ACTIVE) TIDA-00121

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Key Document

Description

This design is a 12A Maximum Power Point Tracking (MPPT) solar charge controller with a 700mA LED driver. It is targeted for low power solar charger and LED driver solutions such as solar street lights. This design is capable of charging 12V batteries with up to 10A output current from 12V panels. However, it can be easily adapted to 24V systems by just changing the MOSFETs to 60V rated parts. Also, the design can drive up to 15 LEDs in series with 700mA of current. It is possible to adapt the design for LED currents up to 1.1A with minimum change in hardware. TI provides a complete solar inverting system for low power loads. Additionally this design takes real world considerations in to account, such as reverse battery protection, built-in battery charge profile for 12V Pb-acid batteries, and a highly efficient design. Together these provide new market entrants and faster time to market for their design.

Features
  • High efficiency: >95% for MPPT charger and >90% for LED driver
  • Supports 15VDC - 22VDC Input Voltage Range
  • Built in charge profile for 12V Pb-acid battery
  • Flexible design adapts to 24V panels by only changing to 60V MOSFETs
  • Capable of driving upto 15 LEDs with 700mA current
  • Board Form Factor: 100 mm x 45 mm x 32 mm

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Schematic/Block Diagram

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Design Files

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Bill of Materials (BOM)

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TI Devices (6)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD18533Q5A  60V N-Channel NexFET Power MOSFET  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
CSD18534Q5A  60V N-Channel NexFET Power™ MOSFET  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
LM25101  3A, 2A and 1A High Voltage, High-Side and Low-Side Gate Drivers  Gate Drivers  Sample & Buy Not Available
MSP430F5132  25MHz MCU with Two 16-bit High Res Timers, 8KB flash, 1KB RAM, 10-bit ADC, 16-channel Comparator  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
TLV704  24V Input Voltage, 150mA, Ultra-Low-Iq Low-Dropout (LDO) Regulators  Power management  Sample & Buy View Design Kits & Evaluation Modules
UCC27517  4A/4A Single Channel High-speed Low-side Gate Driver  Gate Drivers  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD18533Q5A VSONP (DQJ)| 8 Download
CSD18534Q5A VSONP (DQJ)| 8 Download
LM25101 Download
Download
Download
Download Download
Download
MSP430F5132 Download -
Download -
Download Download
TLV704 Download Download
UCC27517 Download

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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 1254 29 Jan 2014 108
Design files (4)
Title Abstract Type Size (KB) Date Views
ZIP 797 04 Jun 2018 48
ZIP 268 29 Jan 2014 36
ZIP 28 29 Jan 2014 40
PDF 48 29 Jan 2014 140
Related Tools & Software

Software (1)


  • TIDA-00121
    (ZIP, 178 KB)    64 views, 04 Jun 2018

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