IC manufacturers Texas Instruments

IC manufacturers (103)

Texas Instruments LM5109BMA | Demoboard TIDA-010042

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

Overview

TopologyHalf-Bridge Converter symmetrical isolated
IC revisionE2

Description

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

Typical applications

  • Solid State Motor Drives
  • Solid State Motor Drives
  • Current Fed Push-pull Converters / Half and Full Bridge Power Converters

More information

Products

Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
C
Tol. C
VR(V (DC))
Size
Operating Temperature
Q(%)
DF(%)
RISO
Ceramic Type
L(mm)
W(mm)
H(mm)
Fl(mm)
Packaging
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC max.(mΩ)
fres(MHz)
Wire Type
Samples
WCAP-CSGP MLCCs 10 V(DC), 220 pF, ±5%
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Capacitance220 pF
Capacitance±5% 
Rated Voltage10 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Q-Factor1000 %
Insulation Resistance10 GΩ
Ceramic TypeNP0 Class I 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
WCAP-CSGP MLCCs 16 V(DC), 100 nF, ±10%
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Capacitance100 nF
Capacitance±10% 
Rated Voltage16 V (DC)
Size0805 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor3.5 %
Insulation Resistance5 GΩ
Ceramic TypeX7R Class II 
Length2 mm
Width1.25 mm
Height0.8 mm
Pad Dimension0.5 mm
Packaging7" Tape & Reel 
WCAP-CSGP MLCCs 25 V(DC), 1 µF, ±10%
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Capacitance1 µF
Capacitance±10% 
Rated Voltage25 V (DC)
Size0805 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor5 %
Insulation Resistance0.5 GΩ
Ceramic TypeX7R Class II 
Length2 mm
Width1.25 mm
Height1.25 mm
Pad Dimension0.5 mm
Packaging7" Tape & Reel 
WE-HCF SMT High Current Inductor, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Size2818 
Operating Temperature -40 °C up to +125 °C
Length27 mm
Width28 mm
Height18.5 mm
Inductance22 µH
Performance Rated Current34.95 A
Saturation Current @ 10%15.5 A
Saturation Current @ 30%18 A
DC Resistance2.64 mΩ
Self Resonant Frequency9 MHz
Wire TypeFlat