Dfr0559 Sunflower Solar Power Manager Cn3065 Itytarg

DFRobot Sunflower is a new series focusing on high-efficiency small power solar energy harvesting
and management for makers, low-power applications and IoT projects. 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.

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: -40Ԩ～85Ԩ
· 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

Datasheet

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