5V Solar Charge Controller

The DFRobot Solar Power Manager series is designed for IoT projects and renewable energy applications, providing safe and highly efficient integrated modules for solar energy management for manufacturers and application engineers.

5V Solar Energy Management Module is a small, powerful, and highly effective module designed for controlling solar energy using a 5V solar panel.
It features MPPT (Maximum Power Point Tracking) functionality which maximizes the efficiency of the solar panel. The module can provide up to 900mA of charging current to a 3.7V Li battery using a USB charger or solar panel. The ON/OFF DC-DC converter outputs 5V at 1A to meet the needs of various solar projects and low-power applications. Additionally, the module incorporates various protection features for the battery, solar panel, and output, significantly enhancing the stability and safety of your solar projects.

FEATURES

• Constant voltage MPPT algorithm maximizing solar panel efficiency
• Designed for 5V solar panels
• Dual charging mode: solar/USB charger (maximum charge current of 900 mA)
• 5V ON/OFF power supply for low power applications
• Versatile protection functions
• USB connector with ESD protection

APPLICATIONS

• Smart solar environment monitoring system
• Solar-powered robot
• Small solar street lamp
• Solar power bank

Name	Solar Power Manager	Solar Power Manager 5V	Solar Power Manager Micro	Solar Power Manager
Model	DFR0535	DFR0559	DFR0579	DFR0580
IC for Solar Energy Management	LTC3652	CN3065	SPV1050	CN3767
Input Solar Voltage	7V-30V	4.4V-6V	0.5V-4V	15V-25V
Maximum Charging Current	2A(Solar/USB)	900mA(Solar/USB)	70mA(Solar)/100mA(USB)	4A(Solar)
Topology	DC-DC Buck	Linear Regulator	DC-DC Boost	DC-DC Buck
Battery	3.7V Lithium Battery	3.7V Lithium Battery	3.7V Lithium Battery	12V Lead-Acid Battery
MPPT	9V/12V/18V Optional	5V Fixed	75% Open Voltage	Fixed 18V
Battery Protections	Overcharging, over-discharging, overcurrent, reverse polarity	Overcharging, over-discharging, overcurrent, reverse polarity	Overcharging, over-discharging, reverse polarity	Overcharging, over-discharging, reverse polarity
Output Protections	Short circuit, overcurrent, thermal protection	Short circuit, overcurrent	Short circuit, overcurrent	Short circuit, overcurrent, thermal protection
USB Charging IN	Yes	Yes	Yes	No
USB OUT	5V 1.5A	5V 1A	No	5V 2.5A x2
Regulated OUT	Three regulated outputs 3.3V 1A; 5V 1.5A; 9V/12V 0.5A	One regulated output 5V 1A	One regulated output 3.3V 90mA	Two outputs 5V 5A; 12V 8A
Dimensions	78.0mm×68.0mm	33.0mm×63.0mm	30.0mm×30.0mm	68.0mm×68.0mm
Features	Complete multifunctional solar energy management module. Usage: Small solar street lamp, solar robots For 9V/12V/18V solar panels up to 20W	Small and easy-to-use 5V solar energy management module. Applications: Solar Power Bank, Solar Environment Monitors For 5V solar panels up to 10W	Solar energy management module for microelectronic power supply for low-power sensors and controllers. Applications: Wireless Sensor Network, BLE iBeacon For 1V/2V/3V solar panels up to 0.5W	Mid-power solar control module for 12V lead-acid batteries. Usage: Street lighting, smart agriculture, environmental monitoring stations, UPS For 18V solar panels up to 100W

SPECIFICATIONS

• Model: DFR0559
• IC for solar energy management: CN3165
• Input solar voltage (SOLAR IN): 4.5V~6V
• Battery (BAT IN): 3.7V lithium battery
• Maximum charging current (USB/SOLAR IN): 900mA
• Overcharge protection threshold: 4.2V±1%
• Regulated power output: 5V 1A

• Regulated power supply efficiency (3.7V BAT IN): 86% @ 50% load

• USB/solar charging efficiency: 73% @ 3.7V 900mA BAT IN
• Quiescent current:
• Topology: Linear Regulator
• Protection functions
  • INPUT: Overcharge, over-discharge, overcurrent, reverse polarity
  • OUTPUT: Short circuit, overcurrent
• USB charging input: yes
• USB output: 5V 1A
• Operating temperature: -40℃～85℃
• Dimensions: 30.0 mm * 63.0 mm

PACKAGE CONTENTS

• 5V Solar Energy Management Module x1
• Black jumper 2.54 mm x1
• M3 * 10 mm nylon standoff nuts x4
• M3*5mm stainless steel screws x4
• 14*14*7mm black aluminum heat sink x1
• 14*14*0.5mm thermally conductive silicone pad x1