DC-DC Adjustable Step Down Power Module Supply 4V-35V

Description:

• 1piece of DC-DC adjustable step-down power supply module
• Input Voltage: 4-35V
• Output Voltage: Continuously adjustable(1.25-25V)
• Output Current: Rated 3A ,Max 4A (power over 15W, please install a heat sink)
• Constant Current Range: 0-4A (Adjustable)
• Output Power:15W by nature cooling
• Minimum Voltage Difference:2V
• Full Load Temperature Rise: 45 deg C
• Working Temprature:Industrial grade (from -40 ℃ to +85 ℃)(when ambient temprature is over 40 deg C, please step down power or add one heatsink)
• Size (L x W x H): Approx. 1.95 x1.6 x 0.51 inch / 5 x 4 x 1.3cm
• Indicator Light
  • Constant current indicator (red LED)
  • Charging indicator(light red)
  • Charged full (Light Blue)

Applications:

• High-power LED constant current driver
• Lithium battery charger (including ferroelectric),4V, 6V, 12V, 14V, 24V battery charger,Nickel cadmium, nickel metal hydride battery pack charger
• Solar panels and wind driven generator.

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 being up to About 3V
• 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
• Charging turn the light of current default value is 0.1 times of the charging current.(if you need current adjustment, please turn potentiometer adjustment)
• Adjust constant voltage potentiometer to make the output voltage reach float charge voltage
• Final Step, Connected to the battery, try charging,have sufficent

Package Includes:

• 1 x Adjustable DC-DC Step Down Power Supply Module