Precise details:
Instructions for use:
For safety, please leave some margin as much as possible. The maximum voltage when the battery is fully charged should be considered for the input and connection of the battery. The output voltage must not be adjusted to more than 35v, and the output power ( the product of voltage and current) should not exceed 10w; Please dissipate heat.
1. The fixed lamp current is 0.1 times of the constant current value (used to identify whether the battery is full when charging);
2. The input reverse connection protection diode is added. After the input is reversed, the reverse connection protection diode forms a loop, which consumes the reverse connection energy and protects the module; if the reverse connection energy is too large, the current surges, then the s-shaped trace on F1 on the PCB will be It is blown out to form an open circuit, which further protects the module; at this time, only a thin copper wire is connected to the F1 position to restore the output, and if an overcurrent protector is added to the F1 position, it can automatically restore. (Note: Some manufacturers claim to add a diode to the module, but not F1, so it is still impossible to protect the module!)
Parameter:
Module nature: non-isolated step-down constant current, constant voltage module (CC CV) charging module
Input voltage: 5-55V (limit voltage 55v)
Output voltage: 1.25-30V adjustable
Minimum voltage difference 2V: The input voltage must be higher than the output voltage by 2V or more, and it cannot be boosted
Output current: 12V to 5V maximum 3A (output other voltage is calculated at 15W, formula 15/output voltage=output current
Output power: maximum 15W, (if the temperature is high, please install a heat sink)
Conversion efficiency: 80% (the higher the output voltage, the higher the efficiency)
Working temperature: industrial grade (-40°C to +85°C) (the ambient temperature exceeds 40°C, please reduce the power to use, or strengthen the heat dissipation)
Full load temperature rise: 45°C
No-load current: typical 10mA (48V to 4.2V)
Potentiometer adjustment direction: generally clockwise (increase), counterclockwise (decrease)
Indicator light: two-color indicator light, red during charging, green when charging is complete (green if no load is connected)
Module size: 48 (length) * 24 (width) * 11.4 (height) without potentiometer (including potentiometer height 13MM)
Package included:
1 x Step-down Power Module