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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
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 | CN3165 | 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 |
Features |
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 |