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Sunflower: Solar Power Manager 9V/12V/18V
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DFRobot is launching a brand new series - Sunflower, focusing on high-efficiency, small power solar energy management for IoT projects and renewable energy applications.
INTRODUCTION
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 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.
Board Overview
Solar Power Manager interfaces (front)
Solar Power Manager interfaces (back)
Solar Power Manager interfaces (back)
Connection Diagram
Build a solar powered system
FEATURES
- 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
APPLICATIONS
- Smart solar environment monitor system
- Solar powered robot
- Small solar street lamp
- Solar power bank
SPECIFICATION
- 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: over charge /over discharge /over current /reverse connection protection
? OUT1-OUT3/USB OUT: short circuit/over current/over heat protection
? SOLAR IN: reverse connection protection - Operation temperature?-40??85?
- Dimension?78.0mm*68.0mm
DOCUMENTS
SHIPPING LIST
- Sunflower: Solar Power Manager x1
- Black Jumper x3
- M3 nylon pillar x4
- M3 stainless steel screw x4
- 14mm*14mm Aluminum cooling fin x1
- 14mm*14mm Thermal conductive silicone pad x1
- Female DC power jack adapter x1
DF-DFR0535
DFRobot is launching a brand new series - Sunflower, focusing on high-efficiency, small power solar energy management for IoT projects and renewable energy applications.