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NXP Semiconductors of the Netherlands held a briefing session for domestic media in Japan on November 17th, introducing the company's lighting driver IC business. The company's Stephane Curral (general manager of the power lighting production line) attended the meeting.
Stephane Curral's business unit mainly produces AC-DC converter ICs. At the briefing session, he mainly introduced notebook IC adapter ICs and lighting driver ICs. NXP Semiconductors is a semiconductor manufacturer separated from Royal Philips Electronics of the Netherlands, and its driving driver IC share ranks first in the world.
Stephane Curral also introduced high-frequency fluorescent lamps HF-TL (High Frequency Tube Lamp), HID (High Intensity Discharge) lamps used in automobiles, bulb-type fluorescent lamps, and LED lighting driver/controller ICs. The company is focused on achieving high growth rates for LED lighting and bulb-type fluorescent lamps in the future.
According to Stephane Curral, according to Datapoint Research, the market for LED lighting will reach $400 million by 2013. Now, many semiconductor manufacturers have been involved in the driver/control IC market. Stephane Curral pointed out that the advantages of NXP in the competition are as follows.
It can achieve a life of more than 7000 hours at 150 °C.
First, NXP is the "sole" semiconductor manufacturer that has announced the results of reliability tests that rival the life of LED products. “For example, most of the bulb-type LED lighting products have a lifespan of about 40,000 hours. However, there is no evidence that the ICs used have such long product life†(NXP Semiconductor Japan).
NXP carried out a reliability test on the company's LED driver IC (controller + driver FET) "SSL2101". The results show that when the ambient temperature is 105 °C, the estimated product life is more than 60,000 hours, when the ambient temperature is 115. At °C, the life of the product is estimated to be more than 35,000 hours. When the ambient temperature is 125 °C, the life of the product is estimated to be more than 20,000 hours. When the ambient temperature is 150 °C, the life of the product is estimated to be more than 7000 hours. "If the driver IC in the bulb-type LED lamp is broken, the life of the lamp will not be discussed. And our product will not be like this" (Curral).
The high level of support for dimmers is also a feature of new products. The product supports most of the triac dimmers and transistor dimmers and supports 10 to 90% deep dimming to achieve the same natural dimming curve as incandescent lamps. In addition, the size is highly integrated, and the external components are the least in the bulb type LED lamp IC. In addition, supporting an insulated flyback circuit structure and a non-insulated buck converter circuit structure is also a major feature.
Now, NXP has introduced LED driver ICs with dimming function, LED driver ICs without dimming function, and controller ICs for high-power LEDs such as street lamps.
Stephane Curral holds a bulb-type LED light with NXP IC in his right hand. Nikkei BP reporter photography
Product examples of driver ICs for LED lighting The above two types ("supporting dimming type" and "fixed output type") are driver ICs equipped with FETs.
The "high power LED driver" is the controller IC of the external FET. Data provided by NXP
LED lighting circuit development board red arrow refers to the driver IC "SSL2101". Nikkei BP reporter photography
Strive for the first share of ICs for bulb-type fluorescent lamps
It takes time to achieve widespread adoption of LED lighting. Prior to this, in the current environmental situation, the trend of replacing incandescent lamps with bulb-type fluorescent lamps has accelerated. According to Datapoint Research, sales of bulb-type fluorescent lamps will reach 5 billion by 2012. Curral believes that in this situation, bulb-type fluorescent lamps need to improve quality / reduce power consumption, which is an opportunity for NXP.
According to Stephane Curral, the company's driver ICs for bulb-type fluorescent lamps have the following features: miniaturization of FETs and cathode load diodes through built-in switches, support for dimming methods such as deep dimming and grading dimming, using proprietary technology Reduce lighting time, etc. According to Curral, NXP ranked second in the IC market for bulb-type fluorescent lamps and will rise to the top in 2009. 