Demand from various applications continues to drive up LED output value. According to estimates from Taiwan Research Institute Tuoba Industrial Research Institute, LEDTV's penetration rate for this year's TV market will reach 43%. By 2014, penetration rate is expected to reach 100%. %, shipments will increase from 36.95 million units to 260 million units. Furthermore, in the highly anticipated LED lighting, LED bulbs are expected to penetrate the global lighting market ahead of schedule in 2011 and will Become the first choice for general consumers to replace light sources. In addition to emerging applications, the penetration rate of small-size LED backlights in mobile phones and consumer electronics products has approached 100%, and various demands have increased. The output value of LEDs continues to rise. With the increase of LED output value, the demand for LED driver ICs is also rising. It is estimated that the global LED driver IC market will expand to 3.7 billion in 2010.
As far as the application is concerned, LED driver ICs currently have three major categories of market demand. The first one is for consumer electronics products. Its application feature is battery-powered, typically 4.2-8.4V, so low-voltage, low-current LED drivers are Currently the largest output and the most widely used products; the second is for automotive lighting products, because its power comes from the car battery, usually 48V, so the need for higher voltage step-down LED driver IC; Third, architectural decorative lighting and home lighting Therefore, it is necessary to convert the AC power directly to a DC LED driver IC. The main function is to convert the AC voltage to a DC power supply and simultaneously complete the matching with the voltage and current of the LED.
Overall, consumer electronics LED drivers have relatively mature technologies, products, and relatively mature markets. As for the number of LEDs used in automotive lighting products, the majority of them are string and parallel drives and require higher voltages. This is very convenient for power supplies from 48V car batteries.
The quality of the driver IC is related to the performance of the LED lighting. As a whole, the constant current technology that can achieve consistent brightness can be achieved. The pulse width modulation (PWM) integration technology that can integrate the brightness adjustment function is the consistent pursuit of various LED driver ICs. For lighting applications, compared to the general incandescent bulbs can be directly connected to the 220V AC, LED is 2-3 volts low voltage drive, you must design a complex conversion circuit, and whether the LED can operate efficiently for a long time, The quality of the driving power supply can be said to be one of the keys, and the importance of the LED driver IC can be seen.
The existing LED street lamps and home LED lighting solutions are basically divided into two parts, one part is to convert 220V mains to 24V or 48V AC-DC power adapter, and the other part is to provide drive current to the LED LED buck-boost controller. The products of the lighting LED driver IC industry also seek development in these two aspects.
On the whole, in all kinds of LED applications, the lighting field still belongs to various melee situations. Therefore, it has also become the focus of LED driver IC layout. Zhang Guocheng, deputy general manager and chief executive of Ritek Technology, an important developer of analog ICs in Asia, said that the company had previously prepared a series of LED general lighting applications. After the product lines and related solutions were prepared, it has now begun to bring real meaning to the company. As a result of the performance contribution, the company is happy to watch the development opportunity of the market. It is expected that Liye will have a good chance for development, and next year LED lighting products will see a certain percentage of single-digit revenue.
Reducing the usage and cost of driver ICs This year, the layout of LED lighting includes the LED lighting application driver IC-RT84 series that was introduced recently. Ritek stated that it is different from the hysteresis-controlled buck-type LED on the market. Drive ICs, Liye's full range of products use fixed-frequency control to reduce the inductance value by one-third of the hysteresis control, and the fixed-frequency control mode is also less accurate than the hysteresis control due to the changes in the input voltage and current. Worse. In addition, Li Qi also proposes different LED solutions for buck, boost, and buck-boost for different LED lighting applications. At present, product applications in the market mostly adopt step-down LED driver ICs for design. The advantage of this method is that the design concept is simple, but the number of LED drivers may be limited by the limitation of the step-down circuit so that a large number of step-down ICs need to be used. Ritek's boost driver ICs can significantly reduce the usage and cost of LED step-down driver ICs by more than half.
In addition to LED lighting, Zhang Guocheng pointed out that the driver ICs for LED backlighting continue to be developed for large-size applications. Some of the products have been designed-in to customers' large-size LEDTV products, and sales of TV application products are expected to increase in the coming year. It will grow and will become the focus of layout in the next 2-3 years.
Li Mingru, the chairman of Pei Heng Semiconductor, which is directly applied to AC power, also pointed out that the company's previous efforts to continuously deepen its R&D investment during the financial tsunami are expected to accelerate in the second half of the third quarter from this year. One of the major focuses is LED lighting. Li Mingru said that
The company has developed LED driver IC products for its Epistar partners that meet its specifications. It has a competitive advantage in terms of heat dissipation and output power, and it is currently available in small quantities. It is expected to be a new growth momentum next year.
The series of lighting LED driver ICs that Pei Heng officially launched today can implement different structural designs for different applications, including products designed for MR16, decorative xenon lamps, and T8 lamps and other related applications. Pei Heng and said that currently on the market general LED products are mostly DCLED, must use rectifier transformers. In this regard, Pei Heng has introduced LED driver ICs that are directly applied to AC power supplies, which can save 15-30% of the power consumption of LEDs in the past when converting between DC and AC power, and does not require any external capacitor. This product can accept input voltage. Up to 80V, the drive current is also available with 20mA and 30mA, which can be used to provide LED dimming, which not only meets the requirements of energy saving and carbon reduction, but also greatly reduces the heat dissipation problem. It is suitable for the design requirements of bulb lamps and signal lamps.
In addition, Pei Heng has also successfully developed a dedicated chip for MR16-compatible LED spotlights in recent days. Pei Heng said that this chip can reduce the size and weight of the lamp neck part of the PCB, while reducing the overall cost of lighting equipment manufacturing.
The single-chip solution comes out in addition, because the discrete solution not only needs more components, but also takes up a lot of space. Therefore, there are also industry-wide single-chip solutions, such as NXP (NXP) to facilitate the development of an integrated single-chip solution SSL2101. NXP said this is the world's first integrated dimmable mains LED driver, a small size switch mode The power supply (SMPS) controller IC is designed to drive LED devices and provides dimmable capability to further improve the energy efficiency of LED lighting. SSL2101 can drive a variety of lighting systems with different power requirements, including LED retrofit lamps, LED modules, LED spotlights, spotlights, and LED light strings for store displays.
2012 is a key year for the LED lighting market, according to research firm StrategiesUnlimited, which estimates that LED lighting will reach $5 billion in 2012. Philips, the lighting faucet maker, also estimated that LED lighting will cause structural changes to the existing lighting market. It is estimated that the LED lighting output will exceed traditional lighting by 2014-2015 at the earliest, becoming the mainstream lighting fixtures, and the latest will be in 2017. It will happen in 2018, and by 2020, the penetration rate of global LED lighting in the overall lighting market will reach 80%, and the business opportunities will be as high as 100 billion US dollars. Philips points out that the lighting market grows by 5% each year, but LED lighting will take annual More than 50% growth rate is replacing the traditional lighting market.
Furthermore, LED die leader Jingdian believes that LEDTV's growth rate will begin to slow down after two years, and LED lighting will be expected to be able to successfully take over LED lighting in 2012. On the whole, the industry generally believes that 2012 will be the key year for the development of LED lighting, and 2015-2018 will be the fastest growing stage. Take it for granted, LED lighting driver IC will also burst out huge demand at this stage. It is worthwhile to have a positive layout.
As far as the application is concerned, LED driver ICs currently have three major categories of market demand. The first one is for consumer electronics products. Its application feature is battery-powered, typically 4.2-8.4V, so low-voltage, low-current LED drivers are Currently the largest output and the most widely used products; the second is for automotive lighting products, because its power comes from the car battery, usually 48V, so the need for higher voltage step-down LED driver IC; Third, architectural decorative lighting and home lighting Therefore, it is necessary to convert the AC power directly to a DC LED driver IC. The main function is to convert the AC voltage to a DC power supply and simultaneously complete the matching with the voltage and current of the LED.
Overall, consumer electronics LED drivers have relatively mature technologies, products, and relatively mature markets. As for the number of LEDs used in automotive lighting products, the majority of them are string and parallel drives and require higher voltages. This is very convenient for power supplies from 48V car batteries.
The quality of the driver IC is related to the performance of the LED lighting. As a whole, the constant current technology that can achieve consistent brightness can be achieved. The pulse width modulation (PWM) integration technology that can integrate the brightness adjustment function is the consistent pursuit of various LED driver ICs. For lighting applications, compared to the general incandescent bulbs can be directly connected to the 220V AC, LED is 2-3 volts low voltage drive, you must design a complex conversion circuit, and whether the LED can operate efficiently for a long time, The quality of the driving power supply can be said to be one of the keys, and the importance of the LED driver IC can be seen.
The existing LED street lamps and home LED lighting solutions are basically divided into two parts, one part is to convert 220V mains to 24V or 48V AC-DC power adapter, and the other part is to provide drive current to the LED LED buck-boost controller. The products of the lighting LED driver IC industry also seek development in these two aspects.
On the whole, in all kinds of LED applications, the lighting field still belongs to various melee situations. Therefore, it has also become the focus of LED driver IC layout. Zhang Guocheng, deputy general manager and chief executive of Ritek Technology, an important developer of analog ICs in Asia, said that the company had previously prepared a series of LED general lighting applications. After the product lines and related solutions were prepared, it has now begun to bring real meaning to the company. As a result of the performance contribution, the company is happy to watch the development opportunity of the market. It is expected that Liye will have a good chance for development, and next year LED lighting products will see a certain percentage of single-digit revenue.
Reducing the usage and cost of driver ICs This year, the layout of LED lighting includes the LED lighting application driver IC-RT84 series that was introduced recently. Ritek stated that it is different from the hysteresis-controlled buck-type LED on the market. Drive ICs, Liye's full range of products use fixed-frequency control to reduce the inductance value by one-third of the hysteresis control, and the fixed-frequency control mode is also less accurate than the hysteresis control due to the changes in the input voltage and current. Worse. In addition, Li Qi also proposes different LED solutions for buck, boost, and buck-boost for different LED lighting applications. At present, product applications in the market mostly adopt step-down LED driver ICs for design. The advantage of this method is that the design concept is simple, but the number of LED drivers may be limited by the limitation of the step-down circuit so that a large number of step-down ICs need to be used. Ritek's boost driver ICs can significantly reduce the usage and cost of LED step-down driver ICs by more than half.
In addition to LED lighting, Zhang Guocheng pointed out that the driver ICs for LED backlighting continue to be developed for large-size applications. Some of the products have been designed-in to customers' large-size LEDTV products, and sales of TV application products are expected to increase in the coming year. It will grow and will become the focus of layout in the next 2-3 years.
Li Mingru, the chairman of Pei Heng Semiconductor, which is directly applied to AC power, also pointed out that the company's previous efforts to continuously deepen its R&D investment during the financial tsunami are expected to accelerate in the second half of the third quarter from this year. One of the major focuses is LED lighting. Li Mingru said that
The company has developed LED driver IC products for its Epistar partners that meet its specifications. It has a competitive advantage in terms of heat dissipation and output power, and it is currently available in small quantities. It is expected to be a new growth momentum next year.
The series of lighting LED driver ICs that Pei Heng officially launched today can implement different structural designs for different applications, including products designed for MR16, decorative xenon lamps, and T8 lamps and other related applications. Pei Heng and said that currently on the market general LED products are mostly DCLED, must use rectifier transformers. In this regard, Pei Heng has introduced LED driver ICs that are directly applied to AC power supplies, which can save 15-30% of the power consumption of LEDs in the past when converting between DC and AC power, and does not require any external capacitor. This product can accept input voltage. Up to 80V, the drive current is also available with 20mA and 30mA, which can be used to provide LED dimming, which not only meets the requirements of energy saving and carbon reduction, but also greatly reduces the heat dissipation problem. It is suitable for the design requirements of bulb lamps and signal lamps.
In addition, Pei Heng has also successfully developed a dedicated chip for MR16-compatible LED spotlights in recent days. Pei Heng said that this chip can reduce the size and weight of the lamp neck part of the PCB, while reducing the overall cost of lighting equipment manufacturing.
The single-chip solution comes out in addition, because the discrete solution not only needs more components, but also takes up a lot of space. Therefore, there are also industry-wide single-chip solutions, such as NXP (NXP) to facilitate the development of an integrated single-chip solution SSL2101. NXP said this is the world's first integrated dimmable mains LED driver, a small size switch mode The power supply (SMPS) controller IC is designed to drive LED devices and provides dimmable capability to further improve the energy efficiency of LED lighting. SSL2101 can drive a variety of lighting systems with different power requirements, including LED retrofit lamps, LED modules, LED spotlights, spotlights, and LED light strings for store displays.
2012 is a key year for the LED lighting market, according to research firm StrategiesUnlimited, which estimates that LED lighting will reach $5 billion in 2012. Philips, the lighting faucet maker, also estimated that LED lighting will cause structural changes to the existing lighting market. It is estimated that the LED lighting output will exceed traditional lighting by 2014-2015 at the earliest, becoming the mainstream lighting fixtures, and the latest will be in 2017. It will happen in 2018, and by 2020, the penetration rate of global LED lighting in the overall lighting market will reach 80%, and the business opportunities will be as high as 100 billion US dollars. Philips points out that the lighting market grows by 5% each year, but LED lighting will take annual More than 50% growth rate is replacing the traditional lighting market.
Furthermore, LED die leader Jingdian believes that LEDTV's growth rate will begin to slow down after two years, and LED lighting will be expected to be able to successfully take over LED lighting in 2012. On the whole, the industry generally believes that 2012 will be the key year for the development of LED lighting, and 2015-2018 will be the fastest growing stage. Take it for granted, LED lighting driver IC will also burst out huge demand at this stage. It is worthwhile to have a positive layout.
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