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.

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 Li-Polymer/Li-ion Battery



Charge Current (USB/SOLAR IN): 900mA Max Trickle Charging, Constant Current, Constant

Voltage Three Phases Charging



Charge 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



Dimension: 33.0mm*63.0mm/1.3 * 2.48 inches

Applications



Smart Solar Powered Environment Monitor System



Solar Powered Robots



Small Solar Street Lamp



Solar Power Bank