DC-DC Buck Converter 7-35V to 1.25-30V  Step Down Power Module QS-2405CCBDA-15W

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DC-DC Buck Converter 7-35V to 1.25-30V Step Down Power Module QS-2405CCBDA-15W

https://www.satisled.com/web/image/product.template/6691/image_1920?unique=ea656d2
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    Brand: QSKJ

    Model:  QS-2405CCBDA-15W

    Features:

    • Input voltage:DC 7-35V

    • Output voltage:DC 1.25-30V(Continuously adjustable)

    • Output current:Max 3A(high than 15W need heat sink)

    • Constant current range:0-3A(Adjustable)

    • Transfers lamp electric current:Constant current value * 0.1.

    • The lowest voltage difference:2V

    • Output power: natural cooling 15W, add heat sink 25W.

    • Conversion efficiency:Max 90%(the higher output voltage,the higher efficiency)

    • Output ripple:20M bandwidth (only for reference)

    • Input 12V output 5V 3A 60mV(MAX)

    • Full load temperature rise:45°C

    • No-load current: typical 10mA(12V to 4.2V)

    • Load regulation:±1%

    • Voltage Regulation:±0.5%

    • Dynamic response speed:5% 200uS

    • Output short circuit protection:Yes,Constant current value.

    • Input reverse polarity protection:Yes.

    • Output backflow prevention:Yes.Series connection backflow prevention diode in internal.

    • Wiring: Welding,Plus pin can be directly soldered to the PCB.

    • Size:49(L)*23.4(W)*11.4(H) mm(Exclude potentiometer)

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

    • Indicator: two-color indicator, when charging indicator is red, charging is completed indicator is green(no load connect then the indicator is green).

    • Potentiometer adjustment direction: clockwise (increase), counterclockwise (decrease) near the potentiometer input is a voltage regulator (CV), near the potentiometer output is a current regulator (CC).

    • Constant current accuracy and temperature:The actual test, the module temperature changes from 20 degrees to 100 degrees, the constant current value varies by less than 1% (constant value 1A)

    • Operating temperature: Industrial (-40 °C to +85 °C) (ambient temperature exceeds 40 degrees, lower power use, or to enhance heat dissipation)

    Battery charging method:

    • You need to Confirm the battery float voltage and charging current, the input voltage of the module.

    • Adjust the constant voltage potentiometer, the output voltage adjust to about 5V.

    • Use multimeter 10A measuring the output short-circuit current,then adjust the constant current potentiometer to make the output current reaches a predetermined charge current value.

    • Adjust the constant voltage potentiometer to make the output voltage reaches the float voltage.

    • Connected to the battery, try to charge. (1, 2, 3, 4 steps for the module input power, output no-load is not connected to the battery).

    LED constant current drive method:

    • You need to Confirm LED drive working current and maximum operating voltage

    • Adjust the constant voltage potentiometer, the output voltage adjust to about 5V.

    • Use multimeter 10A measuring the output short-circuit current,then adjust the constant current potentiometer to make the output current reaches LED working current.

    • Adjust the constant voltage potentiometer to make the output voltage reaches LED maximum operating voltage.

    • Connect LED,Try (1, 2, 3, 4 steps for the module input power, output no-load is not connected to the LED lights)

    Applications:

    • High Power LED constant current Driver

    • Lithium battery (including ferroelectric) Charging,

    • 4V,6V,12V,14V,24V battery charging,

    • Nickel cadmium nickel hydrogen battery charging,

    • Solar panels,

    • Wind turbines.