Home
Design & development
Reference designs

TIDA-01556

Maximum Power Point Tracking Algorithm for Low Power Solar Battery Charging Reference Design

Design files

TIDA-01556

Design files

Overview

This reference design is a software implementation of a basic maximum power point tracking algorithm for a single-cell battery charging system using a solar panel input. This design removes the requirement for extra circuitry and complex firmware by using integrated features of the charger to achieve maximized charging current all through a simple I²C-based control scheme.

Features
  • Integrated 7-bit ADC to monitor input voltage, battery voltage, and charge current
  • Adjustable input voltage limit with 100-mV resolution
  • High charge efficiency with 93% at 2A and 91% at 3A
  • Wide input voltage operating range from 3.9V to 14V
  • Integrated reverse blocking FET for solar input protection
  • Input high-impedance mode for open circuit voltage measurement
Download View video with transcript Video

Design files & products

Design files

Download ready-to-use system files to speed your design process.

download Design guide — TIDA-01556
TIDUDJ2.PDF (679 KB)

Reference design overview and verified performance test data

download Schematic — TIDA-01556
TIDRVD5.PDF (74 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

Low-power MCUs

MSP430FR4133 — 16 MHz MCU with 16KB FRAM, 2KB SRAM, 10-bit ADC, LCD, UART/SPI/I2C, IR logic, timer

Data sheet: PDF | HTML
Battery charger ICs

BQ25895 — I2C 1cell 5A buck battery charger with high input voltage and 3.1-A boost with HVDCP enabled

Data sheet: PDF | HTML

Start development

Hardware development

Evaluation board

BQ25895EVM-664 — BQ25895 Complete Charger Evaluation Module

This reference design is a software implementation of a basic maximum power point tracking algorithm for a single-cell battery charging system using a solar panel input. This design removes the requirement for extra circuitry and complex firmware by using integrated features of the charger to (...)
EVM user’s guide: PDF | HTML
Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDA-00589 — I2C Controlled Single Cell 5A Fast Charger with MaxCharge and 3.1A Boost Operation for Power Bank TIDA-01556 — Maximum Power Point Tracking Algorithm for Low Power Solar Battery Charging Reference Design
In stock
Limit:
Out of stock on TI.com
Not available on TI.com

BQ25895EVM-664 — BQ25895 Complete Charger Evaluation Module

close
Latest version
Version: null
Release date:
open-in-new

View all versions

Hardware development
Reference design
TIDA-00589 — I2C Controlled Single Cell 5A Fast Charger with MaxCharge and 3.1A Boost Operation for Power Bank TIDA-01556 — Maximum Power Point Tracking Algorithm for Low Power Solar Battery Charging Reference Design
Development kit

MSP-EXP430FR4133 — MSP430FR4133 LaunchPad Development Kit

This reference design is a software implementation of a basic maximum power point tracking algorithm for a single-cell battery charging system using a solar panel input. This design removes the requirement for extra circuitry and complex firmware by using integrated features of the charger to (...)
EVM user’s guide: PDF | HTML
Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDA-00980 — RGB LED Signal Tower With IO-Link Interface Reference Design TIDA-01556 — Maximum Power Point Tracking Algorithm for Low Power Solar Battery Charging Reference Design TIDC-MULTIBAND-WMBUS — Multiband (169, 433 and 868MHz) wM-Bus RF sub-system with Segmented LCD Reference Design TIDM-FRAM-THERMOSTAT — Thermostat Implementation with MSP430 Microcontroller Reference Design TIDM-FRAM-WATERMETER — Low-Cost Water Meter Implementation with FRAM Microcontroller Reference Design TIDM-REMOTE-CONTROLLER-FOR-AC — Remote Controller of Air Conditioner using Low Power Microcontroller
In stock
Limit:
Out of stock on TI.com
Not available on TI.com

MSP-EXP430FR4133 — MSP430FR4133 LaunchPad Development Kit

close
Latest version
Version: null
Release date:
open-in-new

View all versions

Hardware development
Reference design
TIDA-00980 — RGB LED Signal Tower With IO-Link Interface Reference Design TIDA-01556 — Maximum Power Point Tracking Algorithm for Low Power Solar Battery Charging Reference Design TIDC-MULTIBAND-WMBUS — Multiband (169, 433 and 868MHz) wM-Bus RF sub-system with Segmented LCD Reference Design TIDM-FRAM-THERMOSTAT — Thermostat Implementation with MSP430 Microcontroller Reference Design TIDM-FRAM-WATERMETER — Low-Cost Water Meter Implementation with FRAM Microcontroller Reference Design TIDM-REMOTE-CONTROLLER-FOR-AC — Remote Controller of Air Conditioner using Low Power Microcontroller
TI’s Standard Terms and Conditions for Evaluation Items apply.

Software development

Support software

TIDCEF9 — bq25895 Solar Battery Charging MPPT

Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDA-01556 — Maximum Power Point Tracking Algorithm for Low Power Solar Battery Charging Reference Design
Download options

TIDCEF9 — bq25895 Solar Battery Charging MPPT

close
Latest version
Version: 01.00.00.00
Release date: Jan 7, 2018
open-in-new

View all versions

lock

bq25895 Solar Battery Charging MPPT (zip)  — 167 K

SHA-256 checksum
lock = Requires export approval (1 minute)
Hardware development
Reference design
TIDA-01556 — Maximum Power Point Tracking Algorithm for Low Power Solar Battery Charging Reference Design

Release Information

The design resource accessed as www.ti.com/lit/zip/tidcef9 or www.ti.com/lit/xx/tidcef9/tidcef9.zip has been migrated to a new user experience at www.ti.com/tool/download/TIDCEF9. Please update any bookmarks accordingly.

Technical documentation

star
= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 1
Top documentation Type Title Format options Date
* Design guide Maximum Power Point Tracking Algorithm for Solar Battery Charging Ref Design Aug 28, 2017

Related design resources

Reference designs

REFERENCE DESIGN
TIDA-03029 — Optimizing Efficiency by Handshaking Adjustable Adapters and Battery Chargers Reference Design

Software development

IDE, CONFIGURATION, COMPILER OR DEBUGGER
CCSTUDIO — CCStudio™ integrated development environment (IDE)

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support.

Videos
Disclaimer
See the important notice and disclaimer covering reference designs and other TI resources.