Solar MPPT Charge Controller

(ACTIVE) TIDA-00120

Description & Features

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Key Document

Description

This design is a 20A Maximum Power Point Tracking (MPPT) solar charge controller created for solar panel inputs corresponding to 12V and 24V panels. The design is targeted for small and medium power solar charger solutions and is capable of operating with 12V/24V panels and 12V/24V batteries up to 20A output current. Designed with scalability in mind, it can easily be adapted to a 48V system by changing the MOSFETs to 100V rated parts. The user can also increase the current to 40A by using the TO-220 package version of same MOSFETs used currently. The Solar MPPT Charge Controller was created with real world considerations, including reverse battery protection and software programmable alarms and indications provided in hardware but were left non-configured. The design has an operating efficiency of above 97% at full load in a 24V system. For 12V systems the efficiency is above 96% and includes losses in the reverse battery protection MOSFETs.

Features
  • More than 96% efficiency at full load in 12V and 24V systems
  • Supports Wide Input Voltage Range: 15VDC - 44VDC
  • Flexible design supports both 12V or 24V solar panels
  • Output Current: 20A max
  • Small Board Form Factor: 130 mm x 84 mm x 22 mm

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


  

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TI Devices (7)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD18502Q5B  40-V, N-Channel NexFET™ Power MOSFET  Power MOSFET  Sample & Buy Not Available
CSD18532Q5B  60-V, N-Channel NexFET™ Power MOSFET  Power MOSFET  Sample & Buy View Design Kits & Evaluation Modules
INA271  80V, Low-/High-side, High-Speed, Voltage Output Current Shunt Monitor with Simplified Filter Inputs  Current Sense Amplifiers  Sample & Buy Not Available
LM5019  7.5-100V Wide Vin, 100mA Constant On-Time Synchronous Buck Regulator  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules
MSP430F5132  MSP430F51x2 Mixed Signal Microcontroller  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
SM72295  3A Full Bridge Gate Driver with integrated Current Sense Amplifier SM72295  MOSFET and IGBT Gate Drivers  Sample & Buy View Design Kits & Evaluation Modules
TLV704  24-V Input Voltage, 150-mA, Ultralow IQ Low-Dropout Regulators  Linear Regulator (LDO)  Sample & Buy View Design Kits & Evaluation Modules

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 1350 29 Jan 2014 2,457
Design files (2)
Title Abstract Type Size (KB) Date Views
ZIP 28 29 Jan 2014 641
PDF 54 29 Jan 2014 3,586
Related Tools & Software

Software (2)




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