Description:

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 Deg C to 8 Deg C)(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)

• size (Approx. 1.95 x1.6 x 0.51 inch / 5 x 4 x 1.3cm), portable and easy to install.
• It is a LM2577 / LM2596 automatic step-up and step-down power supply module with charging constant current and constant voltage function.
• Double layer PCB,and using LM2596S and LM2577S ICs,it will be stable and effective when you raise or reduce the voltage.
• Wide input voltage range:4-35V
• Output voltage range:1.25-25V(continuously adjustable)
• Max output current:4A.
• It is a good choice for DIY solar panel, car/motorcycle battery charging , and 4s4p li-ion battery pack. charging

Color: Red