LM2596 DC-DC Step Down Power Supply Module / LED Driver Battery Charger Adjustable LM2596S Constant Current Voltage

Description:

• Input voltage: 7-35V

• Output voltage: 1.25-30V adjustable

• Dropout voltage: input voltage must be higher than output voltage of 2V

• Output current: 0-3A, 3A maximum

• Output power: 15W(If the temperature is high, please strengthen heat dissipation)

• Conversion efficiency: 92% maximum (the higher the output voltage, the higher the efficiency)

• Turn lamp current: constant current value * (1% -100%), turn lamp current and constant current value linkage, such as constant current value is 3A, turn the lamp current is set to 0.1 times that of the constant current (0.1 * 3 A = 0.1A), when the value of the constant current regulation into 2A, turn lamp current is 0.1 times that of the constant current (0.1 * 2A = 0.2A). The default shipment has to adjust to the 0.1 times

Indicator light:

• Constant current cc indicator light red,

• Charging indicator light red,

• Full-charged indicator light blue

• The output ripple: 20M bandwidth (for reference only)

• Input 12V output 5V 3A 60mV (MAX)

• Working temperature: industrial grade (- 40 -- + 85 celsius degree) (when temperature is more than 40 degrees, please reduce power, or enhance heat dissipation)

• Full load temperature rise: 45 celsius degree

• No-load current: 10mA typical (12V to 4.2V)

• Load regulation: ± 1%

• Voltage regulation: ± 0.5%

• Dynamic response speed: 5% 200uS

• Output short circuit protection: yes, constant current (current setting constant current value)

• Connection mode: can lead directly welding on the PCB

Battery charging methods:

• 1. Determine the float voltage and charging current that you need to charge battery and module's input voltage. 

• 2. Adjustable constant voltage potentiometer, the output voltage is regulated to about 5V. 

• 3.Use multimeter 10A current block measurement output short circuit current, meanwhile adjusting the constant current potentiometer to make output current reaches predetermined current value. 

• 4.The charging turn lamp current default is 0.1 times of charging current (current value ).If you need, adjust turn lamp current potentiometer please (generally do not adjust). 

• 5. Adjustable constant voltage potentiometer to make the output voltage to the floating charge voltage. 

• 6.Connect battery, to try charging (1, 2, 3, 4, 5 steps is the module input power, output no-load not connected to the battery). 

LED constant current driving use methods:

• 1. Determine you need to drive LED operation current and maximum working voltage. 

• 2. Adjustable constant voltage potentiometer, the output voltage is regulated to about 5V. 

• 3.Use multimeter 10A current block measurement output short circuit current, meanwhile adjusting the constant current potentiometer to make output current reaches LED operating current. 

• 4.Adjustable constant voltage potentiometer to make the output voltage to the LED maximum working voltage. 

• 5.Connected to the LED, try test machine. (1, 2, 3, 4 steps is the module input power, output no-load not connected to the LED lamps).