Constant current constant voltage LED driving lithium ion battery charging module (LM2596)

Description

This module is an adjustable step-down module. The output voltage can be changed by adjusting the blue adjustable resistance on the module. The input and output voltage difference is 2V, and the minimum output voltage is 1.23V.In – (input negative), IN + (input positive), OUT – (output negative), OUT + (output positive) must be correctly connected, otherwise it may lead to module damage.

Features

• The module uses domestic high-quality LM2596 chip, high efficiency (up to 92%), at the same time small heat, can easily reach more than 3A current, with the TI’s op amp control output current, so that the overall output is very stable.
• This module uses a low ESR filter capacitor, can make the ripple voltage as low as 50mV.
• This module uses a machine patch and reflow soldering. At the same time, each module undergoes a two-hour aging test before shipment to ensure high reliability.
• Easy to install, convenient disassembly. Using excellent raw materials, the power consumption is lower.

 Specification

• Dimension: 48mm x 23mm.
• Module properties: Non-isolated constant current and voltage module.
• Rectification: Non-synchronous rectification.
• Input voltage: 7V-35V.
• Output voltage: 1.25V-30V.
• Output current: Adjustable maximum 3A.
• Conversion efficiency: 92% (the highest).
• Switching frequency: 150KHz.
• Output ripple: 50mV (max) 20M Bandwidth.
• Load regulation: ± 0.5%.
• Voltage regulation: ± 2.5%.
• Operating temperature: -40 ℃ to +85 ℃.

Applications

• High-power (up to 3A) LED or laser diode constant current driver.
• Lithium battery charger.
• 4V, 6V, 12V, 14V or 24V nickel cadmium or nickel metal hydride battery charger.
• High conversion efficiency when used with car 12V battery input.
• Adjustable laboratory voltage source or current source.
• Dimming devices.
• Regulate output of solar panels and wind turbines.
• DIY mobile power supply.
• Vehicle power supply.
• Communication equipment power supply.
• All kinds of occasions (such as aeromodelling, etc) which have strict requirements on volume and weight.