DC 5V-35V to 1.25V-30V Constant Current LED Driver Step-down Module

  • Item ID #090442
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List Price: $9.00 Our Price: $4.50Save 50%

Price(per unit)
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$4.50
2-4
$4.28
5-19
$4.05
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$3.83
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$3.60
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This module is adjustable 5-35V to 1.25-30V step-down module, using the LM2596 chip, can be easily up to 3A current, It is a very good constant current led driver.


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Feature:
  • Modules nature: Non-isolated Buck, Constant Current, Constant Voltage
  • Rectification: Non-synchronous rectification
  • Input voltage: DC 5-35V
  • Output voltage: DC 1.25-30V, the Input voltage Must Higher 2V than output Voltage
  • Output current: 3A (Adjustable)
  • Power: If power greater than 10W, please install HEATSINK
  • Conversion efficiency: 92% (MAX)
  • Switching frequency: 150KHz
  • Output ripple: 50mV (max), 20M Bandwidth
  • Load regulation: ± 0.5%
  • Voltage regulation: ± 2.5%
  • Operating Temperature: -40 ° C to +85 ° C
  • Dimension: 48 x 23 x 14 mm

constant current led driver

Some Applications:
  • Rechargeable lithium-ion battery:
  • Drive high power LEDs
  • Charging curve as shown below: red for the current, blue for voltage

constant current led driver

Battery Charging method:
  • 1. Make sure the recharge battery float voltage and charge current, input voltage of the module.
  • 2. adjust constant voltage regulator, the output voltage about 5V.
  • 3. With a multimeter ( to 10A) Measuring output Short-circuit current, Also adjust the constant regulator allows Output current reaches a predetermined charge current value;
  • 4. Adjust Constant regulator allows Output voltage reaches the float voltage;
  • 5. connected to the battery, try charging.
  • (1,2,3,4 step input connect power, output do not connect battery.)
LED constant current driver Usage:
  • 1. Make sure LED current and the maximum operating voltage;
  • 2. adjust constant voltage regulator, the output voltage about 5V.
  • 3. With a multimeter ( to 10A) Measuring output Short-circuit current, Also adjust the constant regulator allows Output current reaches a predetermined LED working current value;
  • 4. Adjust Constant regulator allows Output voltage Reach LED maximum working voltage;
  • 5. Connected to the LED, test.
  • (1,2,3,4 take steps input connect power, output do not connected LED.)
Package includes:
  • 1x DC Converter

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DC 5V-35V to 1.25V-30V Constant Current LED Driver Step-down Module
(1Reviews )5 of 5 Stars!

  • 8
    Zachrey Helmberger
    10/22/2013

    What a wonderful converter!

    I haven't thoroughly tested it yet, but initial impression is WOW! IT WORKS! Adjustable voltage output AND adjustable current limit! What a boon for the off-the-grid tinkerer! I now have a variable power supply with current limit and should be abl
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