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

SKU: 1941688

1.36 1.22 Piece 1.22 USD

¥ 9.50

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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.