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High PFC THD ODM Dimmable 4KV Anti - Surge Linear LED Driver Solutions Satisfied Certification Requirements

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High PFC THD ODM Dimmable 4KV Anti - Surge Linear LED Driver Solutions Satisfied Certification Requirements

China High PFC THD ODM Dimmable 4KV Anti - Surge Linear LED Driver Solutions Satisfied Certification Requirements supplier
High PFC THD ODM Dimmable 4KV Anti - Surge Linear LED Driver Solutions Satisfied Certification Requirements supplier High PFC THD ODM Dimmable 4KV Anti - Surge Linear LED Driver Solutions Satisfied Certification Requirements supplier High PFC THD ODM Dimmable 4KV Anti - Surge Linear LED Driver Solutions Satisfied Certification Requirements supplier

Large Image :  High PFC THD ODM Dimmable 4KV Anti - Surge Linear LED Driver Solutions Satisfied Certification Requirements

Product Details:

Brand Name: AOLITTEL
Model Number: F7110+F5111/F5112

Payment & Shipping Terms:

Minimum Order Quantity: 100PCS
Price: Negotiable
Packaging Details: Bulk
Delivery Time: 2 Weeks
Payment Terms: T/T
Supply Ability: 100,000PCS Per Month
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Detailed Product Description
Name: Linear LED Driver Solutions Anti-surge: 4KV
Voltage: 110V/220V Max. Current: 350mA
IEC6100-3-2: Meet Package: SOP-8, SOT-89, TO-252

 

High PFC THD ODM Dimmable 4KV Anti-surge Linear LED Driver Solutions Satisfied Certification Requirements

 

 

Features

 

Made of 500V high pressure process

External power MOS output current up to 350mA

Input AC voltage 110V/220V

With line voltage compensation

Support analog voltage dimming function

With VS pin is energy control

Support multiple sets of parallel use to increase output power

Support multi-segment series operation mode to improve PFC/THD

With temperature foldback -10% / °C function

Overvoltage (adjustable) protection

Support multi-segment series operation mode to improve PFC/THD

Each harmonic complies with IEC6100-3-2

Anti-surge 4KV or more

Start current protection

Low voltage start function

Package form SOP-8, SOT-89, TO-252

High-power downlights, bulbs, floodlights, LED lamps for certification requirements

 

 

F Linear Series Chip Matching Selection Table

 

NO. P/N Function&Features MOSFET I(mA) LED VF value Package
1 3*F7112 Full voltage lamps less than 15W, constant power, temperature reentry Internal 60-100 126/126 ESOP-8
2 3*F7110 High power full voltage constant power high voltage linear scheme External 350 126/126 ESOP-8
3 F7110+F5111/2 High-power linear solution that meets certification requirements External 350 252 SOP-8+TO-252
4 F7111/2+F2552 Full voltage lamps less than 10W, no constant power, temperature reentry Internal 60-100 126/126 PDFN+ESOP+8

 

 

Product Specification

 

High PFC THD ODM Dimmable 4KV Anti - Surge Linear LED Driver Solutions Satisfied Certification Requirements

 

 

What is the Constant Power Design of LED Driver?

 

Driving LED by constant power mode has recently been a popular topic. Why do LEDs must be driven by the constant current? Why not with a constant power source?

Before discussing the above issue, we must understand why the LED must be driven by a constant current. As shown in Figure (a) LED I-V curve, when the LED forward voltage changed about 2.5%, the current through the LED will correspondingly change about 16%, and forward voltage of the LED is easily affected by junction temperature. The change of high and low temperature may even make the voltage change as high as 20% or more. The brightness of the LED is proportional to the forward current of the LED. If the current varies in big scale, so is the brightness. Therefore, LED must be driven by a constant current source. However, can the LED be driven by constant power? To further discuss this topic, first, we should neglect whether constant power is equivalent to constant brightness or not. Via I-V and temperature curve of LED, the design of a constant power driver seems workable. If the answer is yes, why do LED driver manufacturers not develop the constant power LED driver? It is not difficult to design a driver with constant power design as long as the implementation of the MCU ( Micro Controller Unit ) is carried out in LED driver, which control output power refers to the PWM ( Pulse Width Modulation )duty cycle.

In order to control PWM duty cycle, the microcontroller is in charge of the calculation between feedback signals of the output voltage and current and drives the output to refer to constant power curve in blue of Figure (b), so that the constant power output can be achieved. However, to manufacture a constant power led driver not only cost a certain amount of money but also causing another issue that the output current will increase due to the damage of LED, which can further make the situation even worse. As the LED is a negative temperature coefficient component, reducing the output current to maintain the high life performance of the LED is expected when the temperature is higher. Nevertheless, the constant power method is in conflict with this consideration. The constant power design LED driver will increase the output current refer to lower output voltage for high-temperature application. In sum, considering various factors, providing “ resemble constant power” led driver with a wide range of output voltage and current is the most effective solution.

The constant power LED drivers made by MEAN WELL are specially designed, providing customers with a wide range of voltage and current. To avoid unnecessary cost due to over-design, the misusage because of LED’s characteristic, and causing damage to the lamps, offering a wide range, resemble constant power is currently the most sufficient solution.

 

Contact Details
Aolittel Technology Co.,Ltd

Contact Person: eric.lye

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