LED driver market prospects can be local power supplier IC intervention

For more attention with the global environmental protection and energy saving, the market demand for energy efficient electronic products is also increasing, the importance of rising power IC. Environmental protection, energy saving, energy saving and so on the concept of driving LED technology and its wide range of applications continue to expand, in particular, LED lighting has become the fastest growing applications of high brightness LED. LED advantages and broad market prospects to attract many power IC manufacturers have to intervene. The future trend of LED applications will be large size LCD TV, car LED, large panels, notebook backlighting, LED street lamps, indoor and outdoor lighting decoration, and even the development of home lighting market. With indoor and outdoor lighting, car headlights and LCD TV backlight driver LED applications such as the emergence of a large number of LED in 3C, and even 4C products have emerged enormous business opportunities, many manufacturers have the layout of power supply IC LED application market, set up R & D strength, actively develop program related products.

IIC China year (IIC-China) on the IC power supply manufacturers are one of the biggest highlights, this year is no exception, IIC-China2008 show the scene of many power IC manufacturers together, to display their new products. Among them, Shenzhen long express variety of PMIC and LED driver IC application program to attract many viewers stop.

As a professional engaged in pure analog circuits and mixed high-tech enterprise integrated circuit design, Shenzhen mayor Yun Tong (CYT) the design and development of chip Blx Ic Design Corp specializing in power management, LED drive products field. Product applications involving communications, household appliances, handheld digital products, toys, medical equipment, computers and other fields and energy-saving lighting. Among them, the power management chip flagship CYT brand has gained a good reputation in the industry, has been achieved from the provision of discrete components to complete sets of power management solutions.

Long express company, according to deputy general manager Ban Qian introduction, long express began to enter the LED driver chip design from 2005, 2006 to complete the process and small batch production, the product has become the direction of the rapid growth of express products. The high brightness LED lamp voltage driving control ICCYT2608 is a high efficiency, high brightness LED lamp is stable and reliable driving control of IC, the built-in high precision comparator, off-time control circuit, constant current drive control circuit, especially suitable for large power, a plurality of high brightness LED lamp string constant current drive.

Long express LED driver IC and application program.

The exhibition, in addition to the LED IC driver and application program, long express also show the digital TV set-top box and power management solutions, digital TV set-top box and power management solutions.

Figure: long express mobile solutions.

Figure: digital TV and set-top box power management solutions.

The touch screen control circuit of CYT2046 has been widely used, according to the engineer, the internal reference voltage source 2.5V, can be used as a reference voltage for temperature measurement, battery voltage measurement and auxiliary input chip. When not in use, the reference voltage can be in power saving mode. The internal reference voltage source can still work when the supply voltage is low to 2.7V. When not in use, the reference voltage can also be in power saving mode. The internal reference voltage can still work when the supply voltage is lower than 2.7V, and monitor the supply voltage in the range of 0V to 6V. Audio power amplifier CYT4990 is an audio power amplifier for mobile phones and portable communication devices. 5V voltage, the maximum driving power of 2W (4BTL load), the audio range of total harmonic distortion noise is less than 0.1% (1 ~ 20KHz). The leakage current of power down mode is less than 0.1uA, and the wide operating voltage range is 2.2V - 5.5V.

In process of packaging and testing, at present can express long according to different process design of IC products, covering all kinds of design process models and process form. Long express has been working closely with ROHM, UMC, AMPI to ensure that the product has good consistency. In addition, all products of long express IC wafer and packaging finished 100% testing to ensure that the delivery of high standard products to customers. At present, many domestic and foreign manufacturers have become an important user express, such as Lenovo, founder, HUAWEI, digital China, ZTE, TCL, BYD, China microelectronics, Taiwan Proview, Samsung, LG and other companies.

Source: Electronic Engineering album