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 is a complete small power and high-efficiency solar power management module. It features as MPPT (Maximum Power Point Tracking) function, maximizing the efficiency of the solar panel. Apart from serving as a solar charger, the module can provide up to 2A charging current to 3.7V Li battery with AC adapter (within 30V) or USB charger, three individual ON/OFF controllable DC-DC converters with 5V 1.5A, 3.3V 1A and 9V/12V 0.5A outputs. These features satisfy the needs of various solar power projects and low-power applications. The module also employs various protect functions, such as Li battery protection, battery/solar panel reverse connection protection, output over temperature and over current/short circuit protection, which greatly improves the stability and safety of the system.
Solar Power Manager
- Constant voltage MPPT algorithm, maximizing solar panel efficiency
- 7V~30V wide solar panel input voltage
- Various charging mode: solar/AC adapter/USB charger (2A max charge current)
- Three individual ON/OFF controllable regulated power supply for low-power applications
- All multi-layer ceramic capacitors (MLCC), safe, stable and high-efficiency
- Various protection functions
- USB connector with ESD shell
APPLICATIONSSmart solar environment monitor systemSolar powered robotSmall solar street lampSolar power bank
SPECIFICATIONSolar power management IC: LTC3652Solar input voltage (SOLAR IN): 7V~30VBattery input (BAT IN): 3.7V single cell Li-polymer/Li-ion batteryCharge current(USB/SOLAR IN): 2A MaxCharging cutoff voltage(USB/SOLAR IN): 4.2V±1%MPPT setting voltages：OFF/9V/12V/18VUSB IN voltage: 5VRegulated power supply: OUT1=5V 1.5A; OUT2=3.3V 1A; OUT3=9V/12V 0.5ARegulated power supply efficiency (3.7V battery IN)
OUT3 (9V OUT): 89%@50%LoadUSB charge efficiency: 84%@1ASolar charge efficiency (18V SOLAR IN)：78%@1AMaximum quiescent current: <3 mAProtections
BAT IN: over charge /over discharge /over current /reverse connection protection
OUT1-OUT3/USB OUT: short circuit/over current/over heat protection
SOLAR IN: reverse connection protectionOperation temperature：-40℃～85℃Dimension：78.0mm*68.0mm