N3065 Solar Charging Board

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.

• 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

Instructions for use:

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.

CN3791Solar Charging Board

This is a solar charger used for single cell lithium battery maximum power point tracking (MPPT). This MPPT solar charger enables you to get as much power as possible from solar panels or other photovoltaic devices and install it in a rechargeable lithium battery. It is very easy to use, just insert the solar panel into one side of the solar charger, and then insert the battery into the other side, you can start charging!

High-brightness LED driver module with solar charging

This LED driver board integrates the solar charging chip CN3163 and the high-brightness LED driver chip CN5711. It can be used for DIY production of solar charging LED lights, solar street lights, lighting fixtures, etc.

Just plug in a 5v solar charging board, a rechargeable lithium battery and a 3.7V LED lamp ring to easily form a solar charging LED lighting.

CN5711 is a current modulation integrated circuit with a constant output current of up to 1.5A, which can be used to drive various types of light-emitting diodes including white light-emitting diodes. The LED terminal current of CN5711 is set by an external resistor, and the current range is 30mA to 1.5A. The power transistor is integrated inside the chip, which greatly reduces the number of external components. Other functions include chip temperature modulation, chip enable input and so on. CN3163 is a single-cell lithium battery charging management chip that can be powered by solar panels. The internal charging current adaptive module can automatically adjust the charging current according to the current output capacity of the input power supply. The user does not need to consider the worst case, and can maximize the current output capacity of the input power supply. It is very suitable for using solar panels and other limited current output capabilities. Lithium battery charging application with power supply. The internal fixed constant voltage charging voltage is 4.2V. The maximum charging current is 0.99A (~1A).

Product parameters:

*CN5711 working voltage: 3.7 or 4.2V (the same voltage as the connected lithium battery)

*CN5711LED pin output current can reach 1A

*CN5711 has overcurrent protection function

*CN3163 input voltage range: 4.4V to 6V

*CN3163 constant voltage charging voltage: 4.2V

*CN3163 can be used as a voltage source

* CN3163 internal soft start circuit

* CN3163 continuous constant current charging current can reach 0.99A (1A)

*CN3163 dual indicator output for charging status and charging end status

*CN3163 automatic recharge

*Size: 20* 40mm

*Interface: PH2.0