LM2596 DC-DC Step-down Adjustable CC/CV Power Supply.Module Converter h3
Size:46mmx23mmx10mm/1.81\"x0.91\"x0.39\"(inch) (approx) Features: 1.Fixed turn
the lamp current to 0.1 times the value of the constant current (charge when
used to identify whether the battery is full); 2. Increased input reverse
polarity protection diode; 3. Using dedicated reference IC, and high-precision
sampling resistor, so that the constant current is more stable, (20 degrees to
100 degrees, the constant current 1A, when the temperature drift of less than
Particularly suitable for LED driver
High-power LED constant current drive *Lithium battery charger (including
ferroelectric) *4V, 6V, 12V, 14V, 24V battery charger *Nickel cadmium, nickel
metal hydride battery pack charger *Solar panels and wind turbines
Specifications: *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 ℃
Battery use: * Make sure of the voltage and current of the battery you need to
charge * Adjust the constant voltage potentiometer to make the output voltage
same to the charge voltage * Potentiometer Adjustment Direction: Clockwise
increase), counterclockwise (decrease) *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) * Connected to the battery and try to
charging (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 up to LED Max operating
Voltage. *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. * Join LED, test (For the
above 3 steps, module input terminal is connected to power source, output load
is NOT connected to LED).
The scope of application: Charging for lithium ion batteries: when the lithium
ion battery voltage is low. If use the constant voltage charging directly. Due
to pressure is too large, leading to the battery damage. So from the beginning
to use the constant current charging. When charging to a certain, automatic
switch back to the constant voltage charging.
Charging curve as shown below: red is current, blue is voltage.
1 x LM2596 DC-DC Step-down Adjustable Power Supply Module Converter LED driver
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On 02-Aug-21 at 04:42:33 EDT, seller added the following information: