what is a super bright light emitting diode?

Last Update Time: 2018-10-26 16:22:18

what is a super bright light emitting diode?

The common L.ED luminescence intensity has developed from several mned to dozens of med. ultra high brightness LED to hundreds of Med to thousands of MED even up to tens of thousands of med.ultra high brightness LED can be used for internal or external lighting,the production of large outdoor displays (station square or playground),only panel indicator lights,car headlights (You Yuliang) It can increase traffic safety, traffic lights and traffic signs (such as red and green lights,highway traffic signs, etc.), billboards and signs,bus stop stations, etc.

The new type of ultra high brightness LED is commonly used in TLC-58 series.The size of the package is basically the same as that of the general 5LED,the long pin is the anode and the short pin is the cathode.The series has four kinds of luminous colors,namely red,yellow,pure green and blue,and the models are TLCR58,TLCY58,TLCTG58 and TLCB58 in turn.The series is a diameter of 5,without diffusing transparent resin package. The key technology is to add AllnGaP (red and yellow LED) on GaAs and add InGaN (pure green and blue LED) on SiC.Very small launch angle 4 degrees provides ultra high brightness. In addition,it can resist static discharge: material AllnGaP is 2kV, material InGaN is 1kV.The limit parameters of the new ultra-high brightness LED are as follows : 

TL. CR58 and TLCY58 the main limit parameters:reverse voltage Vk = 5V;forward current Ir 50 mA ( TmB85C );forward Surge Current IrsM 1A ( 1p10pus ); power consumption Pv = 135 mW ( Tamb85C );junction Temperature 125C; operating temperature range 40C ~ + 100. The main limiting parameters of TLCTG58 and TLCB58 : reverse voltage VR = 5V;forward current I = 30mA ( TmB60C ); forward inrush current IrsM = 0.1 A ( tp10ps ); power consumption Pv-135mW ( Tmb60C );junction temperature 100C; operating temperature range 40 C ~ + 100C.The allowable maximum power consumption of the LED is related to the ambient temperature,and the allowable forward current Ip of the LED is also related to the ambient temperature.For example,the maximum allowable power dissipation of the red LED at T85 is 135 mW, and decreases to 80 mW at 100C; at T85,the forward current can reach 50 mA, but decrease to 30mA at 100 " C ".It should be noted that the working current of the general LED is 2 / 3 of the maximum working current, that is,red and yellow LEDs take the working current between 15 and 35 mA,and the pure green, blue LED its working current is between 15 ~ 20mA.In order to work safely,in the LED circuit must be series current limiting resistor R,the current limiting resistor can also be calculated according to R = ( Vxc-VpXn ) / IF.Vee is the supply voltage;vF is the forward voltage of LED,2.1V for red and yellow LED,Vp,3.9V for pure green,blue LED,Vp; n is the number of LEDs in series;ip is the forward current of the LED,generally taking 10 ~ 20mA. For example:VCC = 12V,series 5 red LED, IF15mA,current limiting resistor R = ( 8V-2.1 VX5 ) / 15mA = 10082 desirable R = 1002.If you have a decimal number, you should take an integer or an approximation.