DC-DC 9A 300W step-down module DC 5-40V to 1.2-35V with constant current XL4016 converter module

Products > Module > DC-DC 9A 300W step-down module DC 5-40V to 1.2-35V with constant current XL4016 converter module

DC-DC 9A 300W step-down module DC 5-40V to 1.2-35V with constant current XL4016 converter module

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Module ParametersScope of application: high-power LED constant current drive, lithium battery charging (including ferroelectricity), 4V, 6V, 12V, 14V, 24V battery charging, nickel cadmium nickel hydrogen battery (battery pack) charging, solar panels, wind turbinesInput voltage: 7-32V (without constant current 5-32V)Output voltage: (1) Continuously adjustable (0.8-28V) (2) Fixed output (optional between 0.8-28V), please let us know when purchasing. (For the time being, only for bulk customers, all samples will be sent in adjustable types) (3) If you need a higher voltage, please contact me directlyOutput current: Maximum 12A (If the temperature of the power tube exceeds 65 degrees, please add a fan for heat dissipation. For open environments within 6A from 24V to 12V, a fan is generally not required)Constant current range: 0.2-9A (adjustable)Rotating lamp current: constant current value * (0.1), the rotating lamp current is linked to the constant current value. For example, if the constant current value is 3A, the rotating lamp current is set to 0.1 times the constant current (0.1 * 3A=0.3A). When the constant current value is adjusted to 2A, the rotating lamp current is 0.1 times the constant current (0.1 * 2A=0.2A) The second version is a fixed 0.1 times (the actual light current is not very accurate) for indicating whether the charging is fully charged.Minimum pressure difference: 1VOutput power: The maximum power is about 300W. If the temperature of the power tube exceeds 65 degrees, please add a fan.Conversion efficiency: up to about 95% (the higher the output voltage, the higher the efficiency)Working frequency: 300KHZOutput ripple: 20M bandwidth (for reference only) Input 24V output 12V 5A ripple around 50mV (excluding noise)Working temperature: Industrial grade (-40 ℃ to+85 ℃) (Please pay attention to the temperature of the power tube during actual use. If the temperature is too high, please strengthen heat dissipation)No load current: Typical 20mA (24V to 12V)Load adjustment rate: ± 1% (constant voltage)Voltage adjustment rate: ± 1% Constant current accuracy and temperature: In actual testing, the temperature on the module changed from 25 degrees to 60 degrees, and the change in constant current value was less than 5% (constant current value 5A)Dynamic response speed: 5% 200uS Direction of potentiometer adjustment: clockwise (increase), counterclockwise (decrease). The potentiometer near the input is voltage regulation (CV), and the potentiometer near the output is current regulation (CC)Indicator light: Dual color indicator light, red indicator light during charging, green indicator light after charging (green when not connected to load), red indicator light without constant current. Output short-circuit protection: Yes, constant current (currently set constant current value)Wiring method: Wiring terminals

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Battery charging usage method:

1. Determine the float voltage and charging current of the battery you need to charge, as well as the input voltage of the module;

2. Adjust the constant voltage potentiometer to adjust the output voltage to around 5V.

3. Use a multimeter to measure the output short-circuit current in the 10A current range, and adjust the constant current potentiometer to reach the predetermined charging current value; 4. Adjust the constant voltage potentiometer to achieve a float voltage output voltage;

5. Connect the battery and try charging. (Steps 1, 2, 3, and 4 are to connect the module input to the power supply and output to no load without connecting to the battery.)