Info
Info
News Article

Seoul Semi Reveals LED Chips In Popular Power Packages

The firm's nitride MJT series enables lighting manufacturers to deliver fixture level performance up to 100 lumens per watt. Also, the MJT series is designed on widely used 5630 and 3528 packages and improves compatibility with conventional dimmers
A big advantage of Seoul Semiconductor's the MJT series is that its 5630 and 3528 packages offer LED lighting manufacturers easier production with the standard (module) size and enable lighting fixtures to deliver world-class performance up to 100 lumens per watt.



MJT (Multi-Junction Technology)

MJT, or "Multi Junction Technology", can be driven at a higher voltage than conventional DC LEDs.

While high voltage LEDs in the market are designed with complicated circuit connecting many LED chips physically, MJT uses multiple cell integrated chips to produce various voltage types.

Unlike the conventional method that requires complicated circuitry to connect multiple LED chips, the MJT series is designed to operate at various voltage levels, which allow operation at high voltage levels using only one LED chip of which cells connected by multi-junction technology. 

Using one LED chip, rather than multiple LED chips, reduces the failure rate and optimised chip design help to achieve 100lm/W light efficiency on lighting fixture level.



 

A chip of MJT series designed by multi Junction technology; several cells are connected by junctions as a chip

The MJT is claimed to require the least amount of circuitry to be highly compatible with conventional dimmers. This reduces the cost for the system (LED and driver).



MJT series 5630 (left), 3528 (right) package

Seoul Semiconductor’s John Bae says, “Since the high price of LED lighting is a major hindrance to extend LED market, LED lighting designers make an effort to develop higher performance and lower cost LED lightings for end users to reduce payback period. MJT series meets those demands by reducing the over all system costs. This trend is also followed by the global top lighting manufacturers".

Seoul Semiconductor’s MJT mid power series runs at 19V, 22V and 32V and offers a wide range of colour temperatures (2700K-6500K). They are also optimised for general LED lightings such as A19, PAR and down lights.



AngelTech Live III: Join us on 12 April 2021!

AngelTech Live III will be broadcast on 12 April 2021, 10am BST, rebroadcast on 14 April (10am CTT) and 16 April (10am PST) and will feature online versions of the market-leading physical events: CS International and PIC International PLUS a brand new Silicon Semiconductor International Track!

Thanks to the great diversity of the semiconductor industry, we are always chasing new markets and developing a range of exciting technologies.

2021 is no different. Over the last few months interest in deep-UV LEDs has rocketed, due to its capability to disinfect and sanitise areas and combat Covid-19. We shall consider a roadmap for this device, along with technologies for boosting its output.

We shall also look at microLEDs, a display with many wonderful attributes, identifying processes for handling the mass transfer of tiny emitters that hold the key to commercialisation of this technology.

We shall also discuss electrification of transportation, underpinned by wide bandgap power electronics and supported by blue lasers that are ideal for processing copper.

Additional areas we will cover include the development of GaN ICs, to improve the reach of power electronics; the great strides that have been made with gallium oxide; and a look at new materials, such as cubic GaN and AlScN.

Having attracted 1500 delegates over the last 2 online summits, the 3rd event promises to be even bigger and better – with 3 interactive sessions over 1 day and will once again prove to be a key event across the semiconductor and photonic integrated circuits calendar.

So make sure you sign up today and discover the latest cutting edge developments across the compound semiconductor and integrated photonics value chain.

REGISTER FOR FREE

VIEW SESSIONS

Info
×
Search the news archive

To close this popup you can press escape or click the close icon.
×
Logo
×
Register - Step 1

You may choose to subscribe to the Compound Semiconductor Magazine, the Compound Semiconductor Newsletter, or both. You may also request additional information if required, before submitting your application.


Please subscribe me to:

 

You chose the industry type of "Other"

Please enter the industry that you work in:
Please enter the industry that you work in:
 
X
Info
X
Info
{taasPodcastNotification}
Live Event