Product Description

There have been recent customers said the output current is not adjustable, or the module burned . Later on, we got to know that they had it as a total mode to take the input and output, which resulted in the current sampling resistor to be bypassed; then it will not be able to control the output current, light load current is not adjustable, heavy load burned PWM chip. Therefore, please be sure that not confusing the connection of the input negative and the output negative!

Users who appied this module in a solar panels. Please note: This module can only raise the voltage but not raise the power. Besure that in any case, the input power is 1.1 times higher than the output power. The standard of the voltage and currentis short-circuit current, open circuit voltage, so that the calculated power is too vacuity.

The output power of the module is affacted by the power supply, the load and some other factors. the following data for the results measured by the professional equipment, regardless of other factors.

Parameters:

Input: the IN + , IN-

Output: OUT + , OUT-

Dimensions: Length 50 * W 37 * 13 (MM)

Module Properties: non-isolated step-down constant current module (CC CV) charging module

Application: Constant Current LED driver, lithium batteries (ferroelectric), 4V, 6V, 12V, 14V, 24V battery charging, rechargeable nickel-cadmium nickel-metal hydride batteries (battery pack), solar panels, wind turbines

1. Input voltage:4-35V

2. Output voltage: 
(1) adjustable (1.25-25V continuously adjustable)

(2) requires a fixed output

(3) Size: 50 * 37 * 13 (MM)

3. Connection: 

Input: IN + input is level. IN-Input Negative 
Output: OUT + output is level. OUT-output negative 

4. Module properties: non-isolated. Buck. Constant current. Constant pressure.   Module (CC CV) charging module

5. Scope: 

    1) High-power constant current LED driver. 

    2) lithium battery (including ferroelectric), 4V, 6V, 12V, 14V, 24V battery, nickel-cadmium nickel-metal hydride batteries (battery) charging.

    3) solar panels, wind generator voltage regulator circuit, the vehicle power supply, and other auto-buck regulator circuit.

6. Adjust the way: first pick the correct input power (4-35V between) and then a multimeter to monitor and adjust the potentiometer output voltage (typically clockwise turn boost, buck turn counterclockwise)

7. Output voltage: adjustable (1.25-30V no load adjustment) default voltage of 4.2V. For other voltages can be its own regulation. 

8. Output current: rated 3A, the largest 4A (15W install the heat sink over constant range :0-2A (adjustable) default adjusted 1A 

9. Turn the lamp current: constant current value * (1% -100%), turn the lamp current and constant value linkage, such as the constant value of 3A, turn the lamp current is set to constant current of 0.1 times (0.1 * 3A = 0.3A) When the time constant value adjustment to 2A, then turn the lamp current constant current of 0.1 times (0.1 * 2A = 0.2A). 

10. Adjusted to 0.1 times the default 

11. Output power: natural cooling 15W, 

12. Conversion efficiency: 80% (the higher the output voltage, the higher the efficiency) 

13. Operating temperature: Industrial (-40 ℃ to +85 ℃) (ambient temperature exceeds 40 degrees, lower power use, or to enhance heat dissipation) 

14. Full load temperature: 45 ℃ 

15. Indicator: Red LED constant current charging indicator light red, light blue charging is completed

16. Output short circuit protection: Yes, the constant current (constant current set value)

17. Connection: lead wire can be soldered directly on the PCB