YUANNENGJI There are many models and specifications of LED chips:
Слишком много моделей светодиодных чипов., включая тип прямой вставки, Тип поверхностного монтажа, and high-power lamp bead type. The lamp bead current ranges from tens of milliamperes to several amperes, и напряжение относительно стабильное, mostly above three volts, so there is no way to generalize.
Roughly speaking, they are divided into direct-insert type, Тип поверхностного монтажа, and piranha type according to the package, and divided into high, середина, and low power according to the power.
High-power white LED (например, XML-T6 компании CREE) имеет одиночную мощность 10 Вт, напряжение 3,3в, и ток 3А. Low-power red LED (например, обычный тип с прямой вставкой диаметром 5 мм.) имеет напряжение 2 В и ток 15 мА.. If you really can’t find the component model, you can infer the working voltage based on the light color:
Red light 1.8~2.2v
Yellow light 2.0~2.4v
Green light 2.2~2.8v
Blue and white light 2.8~3.5v
SMD package is 0805, 1206 and other low-power tubes, the working voltage is 10mA, но есть исключения;
SMD package is 3014, 3528, 3535 and other low-power tubes, the working current is 20~50mA, но есть исключения;
SMD package is 5050, 5060, 5630 and other medium-power tubes, the working current is 50~150mA, но есть исключения;
Все мощные светодиоды имеют корпус SMD., and the parameters of different brands and company series vary greatly; but the general working current of the nominal 1W is 350mA
Low-power direct-plug LED chip are generally divided into models according to diameter, 3мм 4мм 5мм 8мм 10мм 12мм, regardless of the diameter, the working voltage and working current are the same, color classification: red light
yellow light 1.7–2.1В
white light blue light warm white light pink light purple light 2.8–3.6В
green light 2.6–3.4В
LED chips have a variety of specifications
1. 0.06Вт, напряжение 2,5-3,5В, ток 20 мА.
2. 0.5Вт, напряжение 2,5-3,77В, ток 150 мА.
3, 1Вт, напряжение 2,79-3,99В, ток 350 мА.
4, 3Вт, voltage 3.05-4.47V, ток 700 мА.
5, 5Вт, напряжение 3,16-4,88В, ток 1000 мА.
1W lamp bead current: 320-350мА, the driver generally chooses 300mA current, and the chip size is 30mil, 35мил, 40мил, and 45mil.
3W lamp bead current: 700мА, the driver generally chooses 600mA, and the chip size is 45mil.
1W and 3W voltages are between 3.0-3.6V, and 3.2-3.4V is better.
As for a single 5W chip, the chip is generally more than 50mil.
LED chip for general lighting are 0.5w-5w, and the operating voltage is around 3-3.2V.
What are the parameters of 1-watt white light светодиодные лампы-бусины? We generally design them to be 3.6—4.2В, 0.2—0.3A. There are many 15W lamp beads now, you can refer to them. Например, cree mce, cree t6.
Напряжение: 3.2-3.6v, current 300-350ma, luminous flux: 100-120 lumens, цветовая температура: white light 6000-7000K.
Methods to identify LED chips are:
1. Посмотрите на яркость, то есть, Яркость при токе управления 350 мА и напряжении 3,0-3,6 В. Чем выше, тем лучше.
2. Look at the chip brand. There are many LED chip brands on the market. It is very important to choose a reliable chip company
3. Look at BIN, то есть, color temperature partition and voltage BIN, the finer the better.
4. Look at attenuation. Требуется тест на старение. Чем меньше затухание света, тем лучше.
5. Посмотрите на реальное приложение, такие как: хорошо иметь на рынке подходящие и дешевые линзы и алюминиевые подложки. If the lens and aluminum substrate need to be molded, the investment will be large. 1Высокая мощность, текущий: 350ма, Напряжение: 2.8-4.0Яркость V: 80-130Цветовая температура ЛМ: 3000-12000K.