YUANNENGJI There are many models and specifications of LED chips:
LED 칩 모델이 너무 많습니다, 직접 삽입형을 포함하여, SMD형, and high-power lamp bead type. The lamp bead current ranges from tens of milliamperes to several amperes, 전압은 상대적으로 일정하고, mostly above three volts, so there is no way to generalize.
Roughly speaking, they are divided into direct-insert type, SMD형, and piranha type according to the package, and divided into high, medium, and low power according to the power.
High-power white LED (CREE의 XML-T6과 같은) 단일 전력은 10W입니다, 전압은 3.3v, 전류는 3A. Low-power red LED (일반적인 5MM 직접 삽입형과 같은) 전압이 2v이고 전류가 15mA입니다. 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, 그러나 예외가 있습니다;
SMD package is 3014, 3528, 3535 and other low-power tubes, the working current is 20~50mA, 그러나 예외가 있습니다;
SMD package is 5050, 5060, 5630 and other medium-power tubes, the working current is 50~150mA, 그러나 예외가 있습니다;
고전력 LED는 모두 SMD 패키지입니다., 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, 3mm 4mm 5mm 8mm 10mm 12mm, 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. 0.06여, 전압 2.5-3.5V, 현재 20mA.
2. 0.5여, 전압 2.5-3.77V, 현재 150mA.
3, 1여, 전압 2.79-3.99V, 현재 350mA.
4, 3여, 전압 3.05-4.47V, 현재 700mA.
5, 5여, 전압 3.16-4.88V, 현재 1000mA.
1W lamp bead current: 320-350mA, the driver generally chooses 300mA current, and the chip size is 30mil, 35밀, 40밀, 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 LED lamp beads? We generally design them to be 3.6—4.2V, 0.2—0.3A. There are many 15W lamp beads now, you can refer to them. 예를 들어, cree mce, cree t6.
Voltage: 3.2-3.6v, current 300-350ma, luminous flux: 100-120 lumens, color temperature: white light 6000-7000K.
Methods to identify LED chips are:
1. 밝기 좀 보세요, 즉, 구동 전류가 350mA이고 전압이 3.0-3.6V 사이일 때의 밝기. 높을수록 좋습니다.
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, 즉, color temperature partition and voltage BIN, the finer the better.
4. Look at attenuation. 노화 테스트가 필요합니다. 빛 감쇠가 작을수록, 더 나은.
5. 실제 응용 프로그램을 살펴보세요, ~와 같은: 적합하고 저렴한 렌즈와 알루미늄 기판을 시중에 판매하는 것이 좋습니다.. If the lens and aluminum substrate need to be molded, the investment will be large. 1W하이파워, 현재의: 350엄마, 전압: 2.8-4.0V 밝기: 80-130LM 색온도: 3000-12000K.