Constant current constant voltage high current 5A lithium ion battery charging LED driver XL4015 step-down power module -79133

Module Properties: non-isolated constant current and voltage module

Rectification: non-synchronous rectification

Input voltage: 5V-32V

Output voltage: 0.8V-30V

Output current: adjustable maximum 5A

Conversion efficiency: 95% (the highest)

Switching frequency: 300KHz

Output ripple: 50mV (max) 20M bandwidth

Load Regulation: ± 0.5%

Voltage Regulation: ± 2.5%

Operating Temperature: -40 °c to +85 °c

This module is an adjustable step-down module. The output voltage can be changed by adjusting the blue adjustable resistor on the module. The input and output voltage difference is 1V, and the minimum voltage can be 0.8V.

The IN- (input negative), IN+ (input positive), OUT- (output negative), and OUT+ (output positive) marked on the module must be connected correctly, otherwise the module may be damaged.

Battery charging method of use:
1. Determine the float voltage and charging current of the rechargeable battery you need, and the input voltage of the module;
2. Adjust the constant voltage potentiometer to adjust the output voltage to about 5V.
3. Measure the output short-circuit current with a multimeter 10A current block, and adjust the constant current potentiometer to make the output current reach the predetermined charging current value;
4. The default shipping current of the charging lamp is 0.1 times the charging current (constant current value).
5. Adjust the constant voltage potentiometer to make the output voltage reach the float voltage;
6. Connect the battery and try charging.
(Steps 1, 2, 3, 4, and 5 are to connect the input of the module to the power supply, and the output does not connect to the battery without load.)

LED constant current drive How to use:
1. Determine the operating current and maximum operating voltage you need to drive the LED;
2. Adjust the constant voltage potentiometer to adjust the output voltage to about 5V.
3. Measure the output short-circuit current with the 10A current block of a multimeter, and adjust the constant current potentiometer to make the output current reach the predetermined LED working current;
4. Adjust the constant voltage potentiometer to make the output voltage reach the highest working voltage of LED;
5. Connect the LED and test the machine.
(Steps 1, 2, 3, and 4 are to connect the module input to the power supply, and the output is no-load without LED lights.)