sursa regulator DC-DC LM2596 Step-down adjustabila LED 3-35v 3A 3 reglaje
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Produs:Nou, Fără garanție
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Numar articol:204293520
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Disponibilitate:Indisponibil
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Preț:21,00 Lei
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Anuntul a expirat la:10.11.2020, 00:30
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Specificatii
Weight:13
g
Color: as
picture show
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 1%).
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.
Package Included:
- 1 x LM2596 DC-DC Step-down Adjustable Power Supply Module Converter LED driver
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