5A DC-DC Constant Current for LED Driver Lithium-ion Battery Power Supply Module

Specifications: Input voltage: 4-38V Output voltage: 1.25-36V (continuously adjustable) Output current: Max. 5A (adjustable) Output power: Max. 75W Working temperature: -40degree Celsius~+85degree Celsius Operating frequency: 180KHz Conversion efficiency: up to 96% Short circuit protection: Yes (limited current 8A) Over-temperature protection: Yes (automatic shutdown output if over-temperature) Reverse input protection: No Installation method: 4 *3mm screws Wiring: terminal or soldering terminal V-IN is input V-OUT is output Module dimension: approx. 51.2mm *26.2mm *15mm Instructions: 1. Use as an ordinary module with over current protection (1) Adjust the constant voltage leveler so that the output voltage reaches your desired voltage level. (2) Measure the output short-circuit current with the 10A current meter of the multi-meter 2. Use as a battery charger The module without constant current function can not be used to charge the battery. Because the voltage difference between the battery and the charger that consumes electricity is very large the charging current is too large and the battery is damaged. Therefore the battery must be used at the beginning. Stream charging automatically switches back to constant voltage charging when charging to a certain degree. Usage: (1) Make sure you need the float charge voltage and charge current of the rechargeable battery; (if the lithium battery parameter is 3.7V/2200mAh then the float voltage is 4.2V the maximum charge current is 1C ie 2200mA) (2) Under no-load conditions the multimeter measures the output voltage and adjusts the constant voltage leveler so that the output voltage reaches the float voltage; (If the 3.7V lithium battery is charged adjust the output voltage to 4.2V) (3) Measure the output short-circuit current with the multimeter 10A current range (directly connect the two test leads to the output terminal) and adjust the constant current potentiometer to make the output current reach the preset charging current value; (4) The charge turn lamp current factory default is 0.1 times the charge current; (battery in the charging process the current is gradually reduced and gradually from constant current charging to constant voltage charging if the charging current is set to 1A then When the charge current is less than 0.1A the blue light is off and the green light is on. At this point the battery is fully charged.) (5) Connect the battery and charge it. 3. Use as high-power LED constant current drive module 1) Make sure that you need to drive the LED s operating current and maximum operating voltage; 2) Under no-load conditions the multimeter measures the output voltage and adjusts the constant voltage leveler so that the output voltage reaches the maximum LED operating voltage; 3) Measure the output short-circuit current with the 10A current meter of the multimeter and adjust the constant-current potentiometer at the same time to make the output current reach the predetermined LED operating current; 4) Connect the LED test machine. ATTENTION: When this module is used in excess of 3A and 35W please enhance heat dissipation!