High current 5A constant current constant voltage LED driven lithium-ion battery charging power module
5A constant voltage and current module
When using this product, please do not use the input ground and output ground of the module together, which will cause the high-power current sampling resistance of the board to be bypassed, so that the module cannot adjust the output current, and the power supply chip on the module is easy to burn when connected to the load.
This module is easy to use and powerful!!! One module has 3 functions, which can be used in most occasions!!!
Module highlights:
1. High power, high efficiency, 5A, low ripple;
2. Three in one:
(1) It is used as a common voltage reduction module with over-current protection capability;
(2) It is used as charger for lithium battery, battery, nickel cadmium nickel hydrogen battery (battery pack) of various voltage values, and used for solar panel, wind turbine and other occasions;
(3) Used as a high-power LED constant current drive module;
3. There are two modes: constant voltage and constant current. There is an indicator light to indicate which mode the module is currently in;
4. When used as a lithium battery charger, the floating charge voltage and charging current can be set, and there is an indicator
Indicates whether it is being charged or fully charged;
5.With current limiting protection function, the module will not be burnt even if the output is short circuited.
Module parameters
Input voltage: 4-38V
Output voltage: 1.25-36V, continuously adjustable
Output current: adjustable, maximum 5A
Output power: maximum 75W
Operating temperature: - 40~+85 ºC
Operating frequency: 180KHz
Conversion efficiency: 96% maximum
Short circuit protection: Yes (limiting current 8A)
Overtemperature protection: Yes (automatic shutdown output after overtemperature)
Input reverse connection protection: None, (if necessary, please connect the high current diode in series at the input)
Installation method: 4 3mm screws
Wiring mode: wiring terminal or welding terminal, V-IN is input, V-OUT is output
Module size: 51.2mm long, 26.2mm wide, 15mm high
Weight: 23g
Scope of application
1. It is used as a common step-down module with over-current protection capability
usage method:
(1) Adjust the constant voltage potentiometer to make the output voltage reach the voltage value you want
(2) 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. (For example, if the current value displayed by the multimeter is 4A, the maximum current when you use the module can only reach 4A. When the current reaches 4A, the red constant voltage and constant current indicator will be on, otherwise the indicator will be off)
Note: When using in this state, since the output terminal has a current sampling resistance of 0.05 Ω, there will be a voltage drop of 0~0.3V after the load is connected, which is normal! This voltage drop is not pulled down by your load, but is reduced to the sampling resistance.
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.
usage method:
(1) Determine the floating charge voltage and charging current of the battery you need to charge; (If the lithium battery parameter is 3.7V/2200mAh, the floating charge voltage is 4.2V, and the maximum charge current is 1C, that is, 2200mA)
(2) Under no-load condition, the multimeter measures the output voltage, and adjust the constant voltage potentiometer to make the output voltage reach the floating charge voltage; (If the 3.7V lithium battery is charged, adjust the output voltage to 4.2V)
(3) Measure the output short circuit current with the 10A current gear of the multimeter (connect two probes directly to the output terminal), and adjust the constant current potentiometer to make the output current reach the predetermined charging current value;
(4) By default, the charging turn lamp current is 0.1 times of the charging current from the factory; (During the charging process, the current of the battery decreases gradually, and gradually changes from constant current charging to constant voltage charging. If the charging current is set to 1A, then when the charging current is less than 0.1A, the blue light will go off and the green light will go on, and the battery is charged.)
(5) Connect the battery and charge it.
(Steps 1, 2, 3 and 4 are: the input terminal is connected to the power supply, and the output terminal is unloaded without battery)
3. Used as a high-power LED constant current drive module
(1) Determine the working current and maximum working voltage of the LED you need to drive;
(2) 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;
(3) 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;
(4) 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!!!
Packing & Delivery
Company Profile
With being OEM manufacturer specializing in PCB&PCBA with 19-year, nowadays,we have built up our strong product research and development center and we are devoting ourselves to electronics smart product.
Our core value: Customers first,fast and efficient,continuous innovation,and grow together. Enterprise tenet: Uphold operation principles of integrity,efficiency,good quality,innovation,service Establilsh a good work atmosphere of unit,confraternity provide the high-quality products and service for customers. Enterprise goals: Attention to customer needs,quickly and efficiently provide the high-quality products and service for customers. We treat our customer as "partner relationship"to grow up together.
Delivery Time (Normally)
1. Product in stock: 1-3Days.
2. Large quantity: Around 10-15Days
3.Customized product: Depends on the prograss for the project and neogiate when project confirmed
1. who are we?
We are based in Guangdong, China, start from 2003,sell to North America(30.00%),Western Europe(30.00%),Eastern Europe(13.00%),Eastern Asia(13.00%),South America(8.00%),Southern Europe(6.00%). There are total about 11-50 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
PCB & PCBA
How can I place an order?
A4: (1) Agreement is achieved on the product price and product specifications.
(2) We make proforma invoice for your confirmation.
(3) When you agree on the proforma invoice, you make the payment.
(4) We deliver the goods after we receive your payment.
What is your lead time?
A5: Sample: Immediately, normally within 1day after payment received.
Small order: About 3-5 working days after payment received.
Bulk order: About 5-7 working days after payment received.
Q6. What are your terms of payment?
A6: Wire Transfer(T/T), Western Union, PayPal, Ali Pay, Transfer in WeChat, Credit Card, Trade Assurance, etc.
Q7. How about the shipping?
A7: Usually, we will deliver the goods via Express like FedEx, DHL, TNT, UPS, China Post and so on. Shipping price will depend on the goods quantity volume and weight.
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High current 5A constant current constant voltage LED driven lithium-ion battery charging power module
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