YUANNENGJI There are many models and specifications of LED chips:
Има твърде много модели LED чипове, включително тип директно вмъкване, Тип SMD, and high-power lamp bead type. The lamp bead current ranges from tens of milliamperes to several amperes, и напрежението е относително постоянно, mostly above three volts, so there is no way to generalize.
Roughly speaking, they are divided into direct-insert type, Тип SMD, and piranha type according to the package, and divided into high, medium, and low power according to the power.
High-power white LED (като XML-T6 на CREE) има единична мощност от 10W, напрежение 3.3v, и ток 3А. Low-power red LED (като обикновения тип 5MM директно вмъкване) има напрежение 2v и ток 15mA. 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 има и изключения;
SMD package is 3014, 3528, 3535 and other low-power tubes, the working current is 20~50mA, но има и изключения;
SMD package is 5050, 5060, 5630 and other medium-power tubes, the working current is 50~150mA, но има и изключения;
Всички светодиоди с висока мощност са SMD пакети, 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 4 мм 5 мм 8 мм 10 мм 12 мм, regardless of the diameter, the working voltage and working current are the same, color classification: red light
yellow light 1.7–2.1V
white light blue light warm white light pink light purple light 2.8–3.6V
green light 2.6–3.4V
LED chips have a variety of specifications
1. 0.06W, напрежение 2.5-3.5V, ток 20mA.
2. 0.5W, напрежение 2.5-3.77V, ток 150mA.
3, 1W, напрежение 2.79-3.99V, ток 350mA.
4, 3W, напрежение 3.05-4.47V, ток 700mA.
5, 5W, напрежение 3.16-4.88V, ток 1000mA.
1W lamp bead current: 320-350mA, the driver generally chooses 300mA current, and the chip size is 30mil, 35мил, 40мил, and 45mil.
3W lamp bead current: 700mA, 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 Мъниста за LED лампа? We generally design them to be 3.6—4.2V, 0.2—0.3Една. There are many 15W lamp beads now, you can refer to them. Например, cree mce, cree t6.
Voltage: 3.2-3.6v, current 300-350ma, luminous flux: 100-120 lumens, цветна температура: white light 6000-7000K.
Methods to identify LED chips are:
1. Вижте яркостта, Тоест, яркостта, когато управляващият ток е 350mA и напрежението е между 3.0-3.6V. Колкото по-високо, толкова по-добре.
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, Тоест, color temperature partition and voltage BIN, the finer the better.
4. Look at attenuation. Необходим е тест за стареене. Колкото по-малко е затихването на светлината, толкова по-добре.
5. Вижте действителното приложение, such as: добре е на пазара да има подходящи и евтини лещи и алуминиеви подложки. If the lens and aluminum substrate need to be molded, the investment will be large. 1W висока мощност, ток: 350ма, напрежение: 2.8-4.0V яркост: 80-130LM цветна температура: 3000-12000K.