XL4015 8-36V Step Down to 1.5-32V 5A DC-DC Converter Power Modul - Power + DVM

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AA270 XL4015 5A Power Module
Module parameters:
- Module Nature: non isolated step-down module (BUCK)
- Rectification Mode: non current rectification
- Input Voltage: 4-35V (please try not to exceed 38V)
- Output Voltage: 1.25-32V, continuously adjustable
- Output Current: 0-5A, recommended to be used within 3.5A
- Output Power: max 75W (more than 50W please add heatsink)
- Operating Temperature: -40 ~ +85 ºC
- Operating Frequency: 180kHz
- Load Adjustment Rate: S (I) ≤ 0.8%
- Voltage Regulation Rate: S (I) ≤ 0.8%
- Power Indicator: Yes
- Short Circuit Protection: Yes (limiting current 8A)
- Over Temperature Protection: Yes (automatic shutdown output after overtemperature)
- Input reverse connection protection: None (if necessary, please add a high current diode in series at the input)
- Installation Method: 2 pieces, 3mm screws
- Wiring Mode: welding, V-IN is input, V-OUT is output
- Module Size: 54 x 24 x 15mm

AA451 XL4015 5A Power Module + DVM
Module parameters:
- Module Properties: 5A High Power 75W DC-DC adjustable step-down module
- Input Voltage: 4.0~38VDC
- Output Voltage: 1.25V ~ 36VDC continuously adjustable (the input voltage must be higher than the output voltage 1.5V)
- Output Current: max 5A, recommended for use in the 4.5A.
- Output Power: max 75W (more than 50W please add heatsink)
- Voltmeter Error: ± 0.05V
- Measure Range: 0 ~ 40V (please ensure that the input voltage is 4.5V or more)
- Conversion Efficiency: up to 96%
- Load Regulation: S (I) < 0.8%
- Voltage Regulation: S (u) < 0.8%
- Protection: overheat protection and short circuit protection
- Dimensions: 6.6 x 3.7 x 1.5mm

AA369 XL4015 5A Power Module + Charger
Module parameters:
- Input Voltage: 8~36VDC
- Output Voltage: 1.25~32VDC
- Output Current: Adjustable maximum 5A
- Voltage Regulation: ± 2.5%
- Load Regulation: ± 0.5%
- Output Ripple: 50mV (max) 20M bandwidth
- Switching Frequency: 300KHz
- Conversion Efficiency: 95% (the highest)
- Rectification: non-synchronous rectification
- Module Properties: non-isolated constant current and voltage module
- Size: 51 x 26.3 x 14mm (LxWxH)
- Operating Temperature: -40 ~ +85 °C

Application:
1. Used as common step-down module with over-current protection capability
- Adjust the constant voltage potentiometer to make the output voltage reach the voltage value you want
- Use the 10A current gear of the multimeter to measure the output short circuit current (connect two probes directly to the output terminal), and adjust the constant current potentiometer to make the output current reach the predetermined overcurrent protection value.

2. Used as battery charger
The module without constant current function cannot be used to charge the battery.
Because the voltage difference between the battery and the charger is large, which leads to excessive charging current and battery damage, the battery should be charged with constant current at the beginning.
When the charging reaches a certain level, it will automatically switch back to constant voltage charging.

3. Used as a high-power LED constant current drive module
- Determine the working current and maximum working voltage of the LED you need to drive;
- Under no-load condition, the multimeter measures the output voltage, and adjust the constant voltage potentiometer to make the output voltage reach the highest working voltage of LED;
- Measure the output short circuit current with the 10A current gear of the multimeter, and adjust the constant current potentiometer to make the output current reach the predetermined LED working current;
- Connect the LED and test the machine.
(Steps 1, 2 and 3 are: the input is connected to the power supply, and the output is not connected to the LED light when the load is unloaded.)
Note: Please strengthen the heat dissipation when the module is used more than 3A and 35W!!!