มินิ โซล่าชาร์จเจอร์ MINI charging module 500MA mini solar lithium battery charging board solar charger

The N3065 is a single-cell lithium battery charge management chip that can be powered by solar panels. 
    The device includes a power transistor internally that does not require an external current sense resistor and blocking diode.
    The internal 8-bit analog-to-digital conversion circuit can automatically adjust the charging current according to the current output capability of the input voltage source.
    The user does not need to consider the worst case, and can maximize the current output capability of the input voltage source, which is very suitable for using solar panels.
Lithium battery charging applications powered by voltage sources with limited current output capability.
    The CN3065 requires very few peripheral components and is compliant with USB bus specifications, making it ideal for portable applications.
    The thermal modulation circuit can control the temperature of the chip within a safe range when the power consumption of the device is relatively large or the ambient temperature is relatively high.
    The internal fixed constant voltage charging voltage is 4.2V, which can also be adjusted by an external resistor.
   The charging current is set by an external resistor. When the input voltage is powered down, the CN3065 automatically enters a low-power sleep mode where the battery current draw is less than 3 microamps.
   Other features include input voltage under-latch, automatic recharge, battery temperature monitoring, and charge status/charge end status indication.

Parameter:

• Input voltage range: 4.4V to 6V
• Maximum charging current: 500mA
• Working temperature: -40 ° C to 85 ° C
• Size: 2cm x 4cm
• PH2.0X2P socket

• SOLAR PH2.0X2P socket +- and the left two pads +- are conductive, connected to the solar panel;
• BATT IN +-, the right two pads +- and SYS OUT +- are conductive, BATT IN +- connected to the lithium battery,
• SYS OUT +- connected to the load;
• MicroUSB is connected to the input voltage source

When charging the battery, it takes priority to take power from the external power supply. However, when the load consumption current is greater than the charging current, it will also take power from the battery. In the end, if the input is not enough, the battery will be slowly consumed. If the load is small, the battery will slowly fill up.