XL4015 BC Battery Charge Module

XL4015 BC Battery Charge Module

5A Adjustable Voltage and Current Controlled Power Supply ( Steps Voltage Down )

DC DC Step-Down Led Driver

        It is a power supply module with adjustable voltage and current. The XL4015 IC is used on the board. It is a ready-made circuit whose output voltage can be adjusted very precisely (for example 5.05V) between 1.25V and 36V. The input voltage goes up to 38V at most. It has the capacity to drive a 5A load. Thanks to its very small dimensions, it is suitable for use in all kinds of circuits. It is designed in a structure that can largely solve your EMC problems.

     The input voltage must always be higher ( Min 1.5V ) than the output voltage. With this product you can only step the voltage down. When you first receive the product, you may need to turn it 20 full turns counterclockwise to lower the voltage. Running the module with high currents requires extra external cooling.

Features:

•     IC: XL4015
•     Input voltage: DC 4V / 38V  ( above 38V the product is damaged )
•     Output voltage: Adjustable DC 1.25-36V ( Attention = The input voltage must be 1.5V higher than the output. )
•     Output current: Maximum 5A ( Above 3A an external heatsink must be used. )
•     Output current adjustable. 0-5A  %1 -  %100
•     Output power: 75W ( Above 35W you need to use an external heatsink. )
•     2 way terminal block input output sockets
•     Left pot: Voltage adjustment
•     Right pot Current adjustment
•     It can charge batteries in the 1.23V /  28V range.
•     Constant current indicator led
•     Battery charging in progress indicator led
•     Full charge indicator led
•     Can be used as a led driver
•     Constant current voltage indicator led
•     Switching frequency: 180 KHz
•     Operating temperature: -20C /  85C
•     Efficiency: higher than %95
•     Over temperature protection
•     Over current protection
•     Short circuit protection
•     4 Pieces 2.5mm mounting holes
•     Dimensions: 62mm x 26mm x 12mm
•     Weight 20gr

Led Description:

•     Green: Charge finished indicator led.
•     Blue: Charging in progress indicator led
•     Red: Constant current status indicator led

Pin Description:

Pot Usage:

• The pots are multi-turn. They can turn 20-30 turns in both directions. Usually people turn them too little and make the mistake of thinking the products do not work. It is necessary to turn a lot to see the effect.
• Turning clockwise; increases the value for the relevant parameter. For example the voltage increases.
• Turning counterclockwise; decreases the value for the relevant parameter. For example the voltage drops.

Battery Charge Usage Settings:

•     Remember that on the city mains there is continuously enough energy to charge any battery you use in 1 second. Nevertheless we charge these devices over long periods.
•     When batteries are depleted their voltages are at low levels. If you connect a battery directly to a power supply without current limiting while charging, it charges with the maximum current the supply can deliver. This situation damages the battery. The battery may explode due to excessive heating. In addition, if batteries are charged with a current higher than the one specified by the manufacturer, the battery life decreases. As an example, a battery that can be charged and discharged 500 times in total will become unusable after a much lower number of uses. For this reason batteries must be charged with a charge current at a ratio such as 1/10  2/10 of their current capacities.
•     Calculate / determine / find out the required charge voltage and charge current for the battery to be charged.
•     Current adjustment: Set the output voltage as 5V. Set the voltmeter as an ammeter and connect the probes to the module output. The device will be short circuited over the ammeter. At this stage, seeing the current on the ammeter, adjust it to the required current value with the current adjustment pot.
•     Then disconnect the voltmeter from the module. By bringing the module to the voltage you want with the voltage pot, you can use it with the output current you determined in the previous stage.

LED Driver Usage Settings:

•     Before using the module, calculate / determine / find out the led driving voltage and current.
•     Current adjustment: Set the output voltage as 5V. Set the voltmeter as an ammeter and connect the probes to the module output. The device will be short circuited over the ammeter. At this stage, seeing the current on the ammeter, adjust it to the required current value with the current adjustment pot.
•     Then disconnect the voltmeter from the module. By bringing the module to the voltage you want with the voltage pot, you can use it with the output current you determined in the previous stage.

Package Contents :

•     1 Piece XL4015 Battery Charge Module