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Solar Power Manager 5V

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114.52 TL



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    The DFRobot Solar Power Manager series are designed for IoT projects and renewable energy projects, providing safe and high-efficiency embedded solar power management modules for makers and application engineers.

    Solar Power Manager 5V is a small power and high-efficiency solar power management module designed for 5V solar panel.
    It features as MPPT (Maximum Power Point Tracking) function, maximizing the efficiency of the solar panel. The module can provide up to 900mA charging current to 3.7V Li battery with USB charger or solar panel. The ON/OFF controllable DC-DC converters with 5V 1A output satisfies the needs of various solar power projects and low-power applications. The module also employs various protection functions for battery, solar panel and output, which greatly improves the stability and safety of your solar projects.
    Check the brief specification for all Solar Power Manager Series Products.
    Version History
    V1.0: It is highly recommended to use a 3.7V lipo battery with protection circuits to improve battery safety.
    V1.1(Newest): Battery (BAT IN) overcurrent and overdischarge protection is added to improve battery safety. It can be use for 3.7 lipo battery no matter it is packed with protection circuits or not.

    Board Overview

    Solar Power Manager 5V Board Overview 
    Solar Power Manager 5V 
    Connection Diagram
    Solar Power Manager 5V Connection Diagram
    Build a solar powered system

    Solar Power Manager Series
    Solar Power Manager Micro (2V 160mA Solar Panel Included)
    Name Solar Power Manager v1.0 Solar Power Manager 5v v1.1 Solar Power Manager Micro v1.0 Solar Power Manager v1.0
    SKU DFR0535 DFR0559 DFR0579 DFR0580
    Solar Power Management IC LTC3652 CN3065 SPV1050 CN3767
    Solar Input Voltage 7V-30V 4.4V-6V 0.5V-4V 15V-25V
    Maximum Charge 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 Over Charge/Over Discharge/Over Current/Reverse Connection Protections Over Charge/Over Discharge/Over Current/Reverse Connection Protections Over Charge/Over Discharge/Reverse Connection Protections Over Charge/Over Discharge/Reverse Connection Protections
    Output Protections Short Circuit/Over Current/Over Heat Protections Short Circuit/Over Current Protections Short Circuit/Over Current Protections Short Circuit/Over Current/Over Heat Protections
    USB Charge 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
    Dimension 78.0mm×68.0mm 33.0mm×63.0mm 30.0mm×30.0mm 68.0mm×68.0mm

    A complete multifunction solar power management module.

    Applications: Small Solar Street Lamp, Solar Powered Robots 

    For 9V/12V/18V Solar Panels within20w

    A small and easy-to-use 5V solar power management module.

    Applications: Solar Power Bank, Solar Environment Monitors

    For 5V Solar Panels within 10W

    A micro power solar power management module for low-power sensors and controllers.

    Applications: Wireless Sensor Network, BLE iBecon

    For 1V/2V/3V Solar Panels within 0.5W

    A medium power solar management module for 12V lead-acid batteries.

    Applications: Street lighting, intelligent agriculture, environmental monitoring station, UPS

    For 18V Solar Panels within 100W


    • Constant voltage MPPT algorithm, maximizing solar panel efficiency
    • Designed for 5V solar panel
    • Double charging mode: solar/USB charger (900mA max charge current)
    • 5V ON/OFF controllable regulated power supply for low-power applications
    • All-round protection functions
    • USB connector with ESD shell


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


    • Solar Power Management IC: CN3065
    • Solar Input Voltage (SOLAR IN): 4.5V~6V
    • Battery Input (BAT IN): 3.7V Single cell Li-polymer/Li-ion Battery
    • Charge Current(USB/SOLAR IN): 900mA Max trickle charging, constant current, constant voltage three phases charging
    • Charging Cutoff Voltage (USB/SOLAR IN): 4.2V±1%
    • Regulated Power Supply: 5V 1A
    • Regulated Power Supply Efficiency (3.7V BAT IN): 86%@50%Load
    • USB/Solar Charge Efficiency: 73%@3.7V 900mA BAT IN
    • Quiescent Current: <1 mA
    • Operation Temperature: -40℃~85℃
    • Dimension: 33.0mm*63.0mm
    • Protection Functions:
    1. BAT IN: over charge/over discharge/over current/reverse connection protection
    2. 5V/USB OUT: short circuit/over current/over heat protection
    3. SOLAR IN: reverse connection protection



    • Solar Power Manager 5V                                              x1
    • 2.54mm Black Jumper                                                  x1
    • M3*10mm Nylon Pillar                                                   x4
    • M3*5mm Stainless Steel Screw                                    x4
    • 14*14*7mm Black Aluminum Cooling Fin                      x1
    • 14*14*0.5mm Thermal Conductive Silicone Pad           x1
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