TIDA-010042

MPPT charge controller reference design for 12-V, 24-V and 48-V solar panels

Design files

TIDA-010042

Design files

Overview

This reference design is a Maximum Power Point Tracking (MPPT) solar charge controller for 12-V and 24-V solar panels. This compact reference design targets small and medium power solar charger solutions and is capable of operating with 15- to 60-V solar panel modules, 12- or 24-V batteries and providing upwards of 20 A output current. The design uses a two-phase interleaved buck converter to step down the panel voltage to the battery voltage. The buck converter and its connected gate drivers are controlled by a microcontroller unit (MCU), which calculates the maximum power point using the perturb and observe method. The solar MPPT charge controller is created with real-world considerations, including reverse battery protection, software programmable alarms and indications, and surge and ESD protection.

Features

96% efficiency in 12-V systems and 97% efficiency in 24-V systems
Wide input voltage range: 15 V to 60 V
High rated output current: 20A
Battery reverse polarity, over-charge and over-discharge protections
System over-temperature and ambient light detection capabilities
Small board form factor: 130 mm x 82 mm x 38 mm

Industrial

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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.

Design guide — TIDA-010042

TIDUEJ8A.PDF (5260 K)

Reference design overview and verified performance test data

Schematic — TIDA-010042

TIDRYU8.PDF (601 K)

Detailed schematic diagram for design layout and components

Bill of materials (BOM) — TIDA-010042

TIDRYU9.PDF (93 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

Assembly drawing — TIDA-010042

TIDRYV0.PDF (321 K)

Detailed overview of design layout for component placement

CAD/CAE symbol — TIDA-010042

TIDRYV2.ZIP (2093 K)

Files used for 3D models or 2D drawings of IC components

Gerber file — TIDA-010042

TIDCF96.ZIP (322 K)

Design file that contains information on physical board layer of design PCB

PCB layout — TIDA-010042

TIDRYV1.PDF (1700 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Ambient light sensors

OPT3001 — Digital ambient light sensor (ALS) with high-precision human-eye response

Data sheet: PDF | HTML

Analog current-sense amplifiers

INA240 — -4 to 80V, bidirectional, ultra-precise current sense amplifier with enhanced PWM rejection

Data sheet: PDF | HTML

Buck converters (integrated switch)

LM5009 — 9.5-95V Wide Vin, 150mA Constant On-Time Non-Synchronous Buck Regulator

Data sheet: PDF | HTML

ESD protection diodes

TPD2E007 — Dual 10-pF, ±13-V, ±8-kV ESD protection diode for AC Signal Data Interfaces

Data sheet: PDF | HTML

Half-bridge drivers

LM5109 — 100V / 1A peak half bridge gate driver

Data sheet: PDF

Linear & low-dropout (LDO) regulators

TLV704 — 150-mA 24-V ultra-low-IQ low-dropout (LDO) voltage regulator

Data sheet: PDF | HTML

Low-side drivers

UCC27517 — 4-A/4-A single-channel gate driver with 5-V UVLO and 13-ns prop delay in SOT-23 package

Data sheet: PDF | HTML

MSP430 microcontrollers

MSP430F5132 — 25 MHz MCU with 8KB Flash, 1KB SRAM, 10-bit ADC, comparator, DMA, 16-bit High Resolution timer

Data sheet: PDF | HTML

N-channel MOSFETs

CSD18540Q5B — 60-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 2.2 mOhm

Data sheet: PDF | HTML

N-channel MOSFETs

CSD19531Q5A — 100-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 6.4 mOhm

Data sheet: PDF | HTML

TVS diodes

TVS3300 — 33V flat-clamp surge protection device

Data sheet: PDF | HTML

Temperature switches

TMP303 — Factory Programmed Temperature Window Comparator

Data sheet: PDF | HTML

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Software

Support software

TIDCFD5 — TIDA-010042 Software

TIDCFD5 — TIDA-010042 Software

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Latest version

Version: 01.00.00.0A

Release date: 08 Jan 2020

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TIDA-010042 Software (zip) — 300 K

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Technical documentation

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	Type	Title		Date
*	Design guide	MPPT Charge Controller Reference Design for 12-V, 24-V and 48-V Solar Panels (Rev. A)		Jan. 15, 2020

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