Sunflower Solar Power Manager 5V

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. Apart from serving as a solar charger, the module can provide up to 900mA charging current to 3.7V Li battery with USB charger. 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, such as 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.

NOTE: This board does not have over-discharge protection circuits, please use a 3.7V Lipo battery with protection circuits.

Features:

• 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
• Various protection functions
• USB connector with ESD shell

Specifications:

• 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%
• USB IN voltage: 5V
• Regulated power supply: 5V 1A
• Regulated power supply efficiency (3.7V battery IN)
  5V/USB OUT: 89%@10%Load, 86%@50%Load, 83%@90%Load
• USB/solar charge efficiency: 73%@3.7V 900mA BAT IN
• Maximum quiescent current: <1 mA
• Protection functions
  • BAT IN: over charge/reverse connection protection
  • 5V/USB OUT: short circuit/over current/over heat protection
  • SOLAR IN: reverse connection protection
• Operation temperature: -40℃～85℃

Documents:

• Product wiki

Dimension: 33.0mm*63.0mm