LM2577S Step Up Down Boost Buck Voltage Module CC CV LM2596S UK NEW

£6.43

5 in stock


Step Down Boost Buck Voltage Converter LM2577S
Constant Current, Constant Voltage



Remember this is UK Stock from a UK Seller

This Module is a non-isolated step-down constant current, constant voltage (CC CV) charging module

Specifications:
Input Voltage: 4-35V
Output voltage: Adjustable from 1.25V to 25V on no-load
Output current: 3A Max, Please use optional Heat Sink if exceeding 15W.
CC range: 0-2A (adjustable)
Charging light current: CC value * (1%-100%), Resolution 0.1 times
Minimum voltage difference: 2V from Input to output
Output power: Natural Cooling 15W
Conversion efficiency: 80% (the higher the output voltage, the higher the efficiency)
Operating Temperature: -40 ℃ to +85 ℃ for ambient temperature greater than 40℃, lower the power use, or add optional heat sink.
Full load temperature rise: 45 ℃
Indicator: CC indicator is Red, charging indicator is Red, charging completed the indicator is Blue.
Output short circuit protection: Yes, constant current.
Connect method: Solder wire onto the PCB
Input: IN+ input Positive is, IN- input negative
Output: OUT+ output is positive, OUT- output negative
Module Size: 49 x 37 x 12mm

 Application Examples:

    High-power LED constant current driver.
    Lithium batteries (including ferroelectric), 4V, 6V, 12V, 14V, 24V battery charging, nickel-cadmium nickel-metal hydride batteries (battery) charge.
    Solar panels, wind generator voltage regulator circuit board power supply, such as automatic buck regulator circuit.

        Battery use:

    Make sure of the voltage and current of the battery you need to charge
    Adjust the constant voltage potentiometer to make sure the output Voltage is approximately 5V.
    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)
    Adjust the constant voltage potentiometer to make sure the output Voltage is up to floating Voltage.
    Connected to the battery and try to chargie (for previous 5 steps, module input terminal is connected to power source, output load is NOT connected to batteries).

        LED Constant Current Driver Use:

    Make sure operating current and Max operating Voltage of the LED you need to drive.
    Adjust the constant voltage potentiometer to make sure the output Voltage is approximately 5V.
    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 LED operating current.
    Adjust the constant voltage potentiometer to make sure the output Voltage is up to LED Max operating Voltage.
    Join LED, test (For the above 3 steps, module input terminal is connected to power source, output load is NOT connected to LED).

 
Important
Note Before you decide to Buy:
This item is provided with NO
instructions or data sheets. We are unable to provide any technical
support
, it is therefore essential that you have the resources available
to make use of this item and how it operates within the electrical
specifications. We check and test each module, we are therefore unable
to accept any returns based on a faulty module.

This item will be fully tested prior to despatch. Buy with confidence. 


 

 

Please read and note the following before ordering:
1) My Shipping is for UK Mainland ONLY. No Scotish Highland, Northern Ireland, Isle of Wight or other Isles. Some areas may incur additional costs, if you are unsure please contact me prior to ordering.
2) Please ensure you have a valid contact phone number, I may pass this number onto the Carrier for delivery. No refund for carriage cost will be offered, if delivery is delayed as a result of no valid contact number being provided.
3) I welcome collection for orders,please select collection on checkout otherwise your order will be despatched. Once your order has been picked and tested if applicable. We will then inform you of a date and time for collection. Please bring your payment card for verification when collecting your order. No order will be released without card verification.
4) I am unable to provide ANY technical support, please ensure you fully understand how this item works by checking for any datasheets (not provided with the item), to enable the product to be used within your application / project.
5) VERY IMPORTANT >> Do not make ANY permanent connections. Please test the item BEFORE making any permanent connections e.g. soldering to the item. Please ensure you have the means to test the item WITHOUT applying ANY solder to the item. If an item has any solder applied I will NOT accept any return.
6) When upgrading to 1st class post, (if the option is available), please note this is sent via Royal Mail and is not a guaranteed next day service. If you need a 48hr courier service please select courier delivery. No weekend or public bank holiday deliveries.
7) We attempt to send out all orders received before 12.00pm. This excludes weekends and public holidays.
8) Customers placing multiple orders. – I may ship all the orders as one, please do not ask for a refund of shipping cost after you have placed your orders. Please do not place your orders if you want a refund of shipping cost.
9) Some items may have a "Warranty Void if removed" sticker, please DO NOT tamper or remove these stickers. I will not accept any rertuns with tampered or removed sticker. Some buyers have tried to send back items that I have not supplied.

**** Important note **** Some sellers claim the stock is in the UK, please be careful, the seller is often in China and sends the item to a UK agent who then forwards the item on with a UK stamp. Check where the seller is located not just the item location. All my items are physically with me, here in the UK and I offer a quick delivery and communication within the UK.

During busy periods there maybe a delay in delivering your package by Royal Mail. I apologies in adavnce for any inconvenience but would like to point this out before you place your order.