DFRobot is launching a brand new series - Sunflower, focusing on high-efficiency, small power solar energy management for IoT projects and renewable energy applications. Solar Power Manager is 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.
Board Overview
Solar Power Manager interfaces (front)
Solar Power Manager interfaces (back)
Connection Diagram
Build a solar powered systemConstant 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 Smart solar environment monitor system Solar powered robot Small solar street lamp Solar power bank Solar power management IC: LTC3652 Solar input voltage (SOLAR IN): 7V~30V Battery input (BAT IN): 3.7V single cell Li-polymer/Li-ion battery Charge current(USB/SOLAR IN): 2A Max Charging cutoff voltage(USB/SOLAR IN): 4.2V±1% MPPT setting voltages:OFF/9V/12V/18V USB IN voltage: 5V Regulated power supply: OUT1=5V 1.5A; OUT2=3.3V 1A; OUT3=9V/12V 0.5A Regulated power supply efficiency (3.7V battery IN)
OUT1: 86%@50%Load
OUT2: 92%@50%Load
OUT3 (9V OUT): 89%@50%Load USB charge efficiency: 84%@1A Solar charge efficiency (18V SOLAR IN):78%@1A Maximum quiescent current: <3 mA Protections
BAT IN: overcharge /over discharge /over current /reverse connection protection
OUT1-OUT3/USB OUT: short circuit/over current/overheat protection
SOLAR IN: reverse connection protection Operation temperature:-40℃~85℃ Dimension:78.0mm*68.0mm Product wiki More Documents Sunflower: Solar Power Managerx1 Black Jumperx3 M3 nylon pillarx4 M3 stainless steel screwx4 14mm*14mm Aluminum cooling finx1 14mm*14mm Thermal conductive silicone padx1 Female DC power jack adapterx1
Board Overview
Solar Power Manager interfaces (front)
Solar Power Manager interfaces (back)
Build a solar powered system
Features:
Applications:
Specification:
OUT1: 86%@50%Load
OUT2: 92%@50%Load
OUT3 (9V OUT): 89%@50%Load
BAT IN: overcharge /over discharge /over current /reverse connection protection
OUT1-OUT3/USB OUT: short circuit/over current/overheat protection
SOLAR IN: reverse connection protection
Documents:
Product Includes:
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