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LD0515ME DC2.5V-5V 1200MA Multifunctional LED Controller Working Mode Current Can be Set ON/OFF Flashing SOS Flashlight USB Lighting Lamp

LD0515ME DC2.5V-5V 1200MA Multifunctional LED Controller Working Mode Current Can be Set ON/OFF Flashing SOS Flashlight USB Lighting Lamp

LD0515ME

1000 in stock

$1.99
$1.42 $1.99
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Product Name : DC 2.5V-5V 1200MA Button Switch LED Driver ON/OFF Flashing SOS Controller for USB Mobile Power 18650 Lithium Battery

Packing list:
(According to the version and quantity you choose)
Description:
Working voltage : DC 2.5-5V(Perfect for 3.3V 3.7V 4.2V 5V LED Driver)
Output Current: <=1200MA
Maximum output power: 6W
Work efficiency up to 92%
Turn off consumption is only 30uA
Anti-battery reverse polarity protection function
Anti-load short-circuit protection function
V
Size : 23mm x 12mm x 6mm
Weight : about 1g


Working Mode(You can move the resistor to change the working mode):
When power on, the LED is OFF;
First trigger button,the LED is ON 100%;
Second trigger button,the LED is ON 25%;
Third trigger button,the LED is 8HZ flashes;
Fourth trigger button,the LED is OFF.
Press and hold the button for 3 seconds, SOS function


Pin Description:
IN+: Power Supply+ (DC 2.5-5V)
IN+: Power Supply-
KEY: Switch(button) port
L+ : LED Output +
L1-: LED Output 1- (Direct output)
L2-: LED Output 2- (Onboard 1.6Ω current limiting resistor)
L3-: LED Output 3- (Onboard 0.8Ω current limiting resistor)

Note: This product has no current limiting function, the maximum load current cannot exceed 1.5A, otherwise the chip will be burned.


LED Drive Current Setting
The LED driving current can be realized by adjusting the value of the current limiting resistor R
The value of resistor R can be adjusted according to the required current:

ILED=(VIN-VF-0.3)/R

(VIN is supply voltage, VF is LED forward voltage)

Example 1 (L2- Port): Power supply voltage 3.8V, VF=3V, R=1.6Ω,
Then ILED=(3.8-3-0.3)/1.6= 0.3125MA

Example 2 (L3- Port):Power supply voltage 3.8V, VF=3V, R=0.8Ω,
Then ILED=(3.8-3-0.3)/0.8= 0.625MA


3.5-5V White LED light bar:

Color : White
Working Voltage: DC 3.5-5V
Working Current: <225mA(220Ma at 5V;100mA at 3.7V)
Wavelength(nm): 6500
Brightness (mcd): 1500
Angle: 120

Size : 36x8.7x1.7mm
Weight : 0.7g





 
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