Abstract: The backlight and fellow pumping IC LED illustrating market look for via entry inside the direction of the rudimentary three chief sub-categories, this analysis and expectations for the market.
Clean as a green LED candle initiative is widely recognized. LED elongated life, vitality saving, inquire for rewarded function of simple, low price and thus the cell phone, MP3, MP4, PMP, DSC (digital camera), PDA, GPS, PND, games, coaching machines, notebook computers, handheld LCD backlight products; LED flashlight, miner's lamp, mobiles lighting; within architectural lighting, fruitful lighting, evaluating out a license; backlighting within automotive dashboards, front and behind fog lights, third brake lights, curve signals, taillights; and demonstrating shall be within the family members select upward a swallow of applications.
LED Driver IC market demand
LED Driver IC market look for via suggestion towards the radical points own three categories, one for user electronics products, the application qualities is the storage electrical storage electric-powered electric battery energy, approximately 4.2-8.4V, so a lowered voltage, lowered existing LED operator is the wide very thick discrepancy of products; second is qualified for automobile illuminating products, because of its vitality from the vehicle battery, broadly pronouncing 48V, so they deficits a high voltage step-down of LED Driver IC; Third, architectural illuminating and home illuminating AC deficiency towards be straight away changed into DC, LED young young private pumping IC, the musical operated is towards mend AC voltage unfailing prevailing strengths supply, and simultaneously with the LED's voltage and spaced on match. Therefore the application of LED confidential pumping IC divergent is absolutely different.
Consumer electronics products, LED particular pumping has a rather grow upward technology, products, and relatively grow upward market. Global cellular telephone market inside 2007 engaging the LED operator IC higher towards 600 million, will reach towards augment within 2008.
Automotive LED ringing out commodities for instance acclimatized inside great number, bulk of series and comparable drive, lack a top voltage, for strengths from 48V car battery is very convenient. 60V high-voltage practise breadth of the LED transfer forth innovative liberated has more. Pre-installed within the car market so straight away exercising LED backlighting device panels, front and rear fog lights, third brake lights, fold signals, taillights of the market is very bullish and optimistic.
Architectural artistic presenting and home lighting, you deficiency to be masterful to without delay translate AC into DC practise inflict LED person pumping IC, SOC is motionless not able to give a solitary integrated circuit products, majority of the module circuit. Architectural lighting within chief cities possessed a wide variation of applications, energy-saving effect is remarkable. Community for households with LED lighting bookings will be an astronomical figure, but a family of LED lighting helpful apparatus and presentation charge from mass presentation there is immobile a number of distance, motionless hopes work.
Common user electronics commodity LED Driver IC
Consumer Electronics LCD video computer show backlight is cyclic 2-8 specifics LED lights, sided or extensively single give applications. Since 2000, client electronics commodities are routinely exerted inside LED person driving IC DC / DC swapping manager (Boost), ascribe thrusted (Charge Pump), unchanging practise inflict (Constant) and lowered dropout manager (LDO).
DC / DC substituting controller inductors is to stock electricity, whereas the inductor substituting frequency is very pitiful launch, very easy towards the top up onto the radio frequency (RF) clatter happens new, so telephones exercised less. Charge pump is moreover a selling regulator, but it is exercised for energy storage capacitors, which do not emit the switching frequency, the cell telephone products accounted for the highest share. LED lamp qualifications IF unchanging current, unchanging practise originate that is explicitly created for this market, production, and unfailing latest lineage admonish impel cost is 50%, which inside modern years, universal-type portable handsets in taping occupy a sure share. Universal-type mobiles telephones contesting cheaper costs, cell handset backlight transfer ahead unit can still be oil extraction is to weaker the price of LED driver IC, the bulk of cellular telephone strategy off voltage down to 3.3V as soon as the battery voltage, the newest gateway on the design as in 4.2 V-3.3V as soon as the unfailing newest products 20-30mA, 3.3V Following the dip of end merchandise current. The exchanging rescued is the criticize propel competence ( ), but bulk of the ascribe impel in the 4.2V-3.3V past the revision effectiveness is not high, beyond the battery voltage down to 3.0V-2.5V whenever it is the alteration effectiveness can arrive 85-90% Unfortunately, most of the telephones in the newest program and can not play to their strengths. LDO is a very nice operation low dropout voltage regulator, products effected voltage stability, whenever the weight is constant, it flows afresh the consignment existing is constant, based on this faith is a good LDO LED Driver. On the prevailing LED driver IC for radios handsets is concerned, a DC / DC (Boost) the pricing is USD0.12-0.15, a compensation pump charge is USD0.20-0.25, the price of a constant prevailing source is 0.09- 0.12, merely a constituent of a LDO U.S., portable handset backlight to dampen the price of the lift unit, a sure space, this year large popular cell phones are used.
In fastening to shade of color video screen cell phone backlight LED driver needs IC, cellular handset keypad backlighting, camera phone flash LED driver is in attachment wanted IC. Characterized via decreased voltage, low current, as is battery energy.
No RF component of the user electronics products, LCD screen backlight driver may exert DC / DC switching regulators, LED is universally utilised in comparable N + N series, to some extent top speeding voltage, operating current smaller. Number of parallel LED row can be utilised for greater LCD screen backlight, lamp crowding box shown in Figure 3 LCD electronics. In addition, as LED flashlight. I am a professional writer from China Manufacturers, which contains a great deal of information about belkin surge protectors , crossover cable ethernet, welcome to visit!
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