LM2596 DC-DC Step-down Adjustable CC/CV Power Supply Module Converter LED driver

• Constant adjustable current light flow at 0.1 times the value of the constant flow (charging to determine if the battery is full)
• Enhanced protection from reverse input polarity
• Use of a special reference integrated circuit and high-precision sampling resistor for more stable constant flow (from 20 to 100 degrees, the constant flow at 1A with a temperature deviation of less than 1%)
• Suitable for LED driver
• Driving high-power LED with a constant flow
• Lithium charger (including ferromagnetic)
• Battery charger for 4V, 6V, 12V, 14V, 24V
• Nickel-cadmium and nickel-metal hydride battery charger
• Solar panels and wind turbines

Specifications:

• Module properties: non-isolated constant current and voltage module
• Rectification process: non-synchronous rectification
• Input voltage: 7V-35V
• Output voltage: 1.25V-30V
• Output flow: adjustable maximum 3A
• Conversion efficiency: 92% (highest)
• Switching frequency: 150KHz
• Output ripple: 50mV (max) 20M bandwidth
• Load regulation: ± 0.5%
• Voltage regulation: ± 2.5%
• Operating temperature: -40 ℃ to +85 ℃

Using with batteries:

• Ensure the voltage and flow of the battery you need to charge
• Adjust the constant voltage regulator so the output is the same as the charging voltage
• Regulator adjustment direction: Clockwise torque (increase), counterclockwise (decrease)
• Use the multimeter on the 10A scale to measure the short-circuit flow and adjust the flow regulator to ensure that the output flow is the expected charging flow
• The charging lamp current is preset to 0.1 times the charging flow
• Connect the battery and test the charging

Using as a constant current LED driver:

• Ensure the operating flow and the maximum operating voltage of the LED you need
• Adjust the constant voltage regulator so the output reaches the maximum operating voltage of the LED
• Use the multimeter to measure the short-circuit flow and adjust the flow regulator to ensure that the flow is as expected for the LED operation
• Connect the LED, test

Application field:

• Charging lithium-ion batteries when the battery voltage is low. Initially use constant current charging before constant voltage to avoid battery damage due to excessive pressure.
• The charging curve shows the voltage and flow.