DC DC CONSTANT CURRENT MODULE LM2596 7V-35V STEP-DOWN

Features:

1.Fixed turn the lamp current to 0.1 times the value of the constant current (charge when used to identify whether the battery is full);
2. Increased input reverse polarity protection diode;
3. Using dedicated reference IC, and high-precision sampling resistor, so that the constant current is more stable, (20 degrees to 100 degrees, the constant current 1A, when the temperature drift of less than 1%).

Particularly suitable for LED driver

*High-power LED constant current drive
*Lithium battery charger (including ferroelectric)
*4V, 6V, 12V, 14V, 24V battery charger
*Nickel cadmium, nickel metal hydride battery pack charger
*Solar panels and wind turbines
 
Specifications:

*Module Properties: non-isolated constant current and voltage module
*Rectification: non-synchronous rectification
*Input voltage: 7V-35V
*Output voltage: 1.25V-30V
*Output current: adjustable maximum 3A
*Conversion efficiency: 92% (the highest)
*Switching frequency: 150KHz
*Output ripple: 50mV (max) 20M bandwidth
*Load Regulation: ± 0.5%
*Voltage Regulation: ± 2.5%
*Operating Temperature: -40 ° to +85 °
 
Battery use:

* Make sure of the voltage and current of the battery you need to charge
* Adjust the constant voltage potentiometer to make the output voltage same to the charge voltage
* Potentiometer Adjustment Direction: Clockwise (increase), counterclockwise (decrease)
*Use the multimeter in 10A current scale to measure output short-circuit current, and adjust the current potentiometer to make sure the output current to the expected charging current value
* The charge current of transfer lamp is default 0.1 times of the charging current (constant current value)
* Connected to the battery and try to charging (for previous 5 steps, module input terminal is connected to power source, output load is NOT connected to batteries).
 
LED Constant Current Driver Use:

* Make sure operating current and Max operating Voltage of the LED you need to drive.
* Adjust the constant voltage potentiometer to make sure the output Voltage is up to LED Max operating Voltage.
*Use the multimeter in 10A current scale to measure output short-circuit current, and adjust the current potentiometer. To make sure the output current to the expected LED operating current.
* Join LED, test (For the above 3 steps, module input terminal is connected to power source, output load is NOT connected to LED).