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Fairchild's LED drivers integrate MOSFETs to cut board space

Posted: 25 Jul 2012     Print Version  Bookmark and Share

Keywords:LED driver  board space  low power 

Fairchild Semiconductor expanded its LED lighting driver solutions portfolio to include an optimised low-power offering that meets limited circuit board footprints, circuit protection and system reliability demands while maintaining global energy regulation compliance.

 Integrated MOSFET LED drivers

The FLS0116, FLS3217 and FLS3247 with integrated MOSFET and power factor correction (PFC) are designed for low-power LED applications. With the addition of the integrated power MOSFET, these devices help to minimise board space and overall component count while decreasing design time. Equipped with cycle-by-cycle current limiting and integrated protection features such as over temperature protection (OTP) and under-voltage lockout (UVLO) these devices help to significantly improve LED lamp system reliability.

The FLS0116 utilises an "adopted digital" technique that automatically detects AC and DC input voltage conditions, enabling and disabling PFC functions while also offering programmable oscillation frequency and analogue dimming and soft-start functions. The FLS3217 and FLS3247 with primary-side regulation (PSR) can support isolated flyback converter and non-isolated DC-DC converter applications. Additionally, the devices regulate accurate output current by using a precise constant-current control (CC) function and increase efficiency for an easier design with linear frequency control.

Fairchild's LED solutions for low-, mid-, and high-power designs reduce external components to save space, provide high reliability, and enhance overall system efficiency. Featuring integrated components in a single IC, Fairchild utilises proven, highly efficient and effective technologies to power ranges that are 1W and higher. With multiple topology offerings that provide energy efficient solutions, Fairchild helps designers achieve high power factor and low total harmonic distortion while meeting global energy regulations. Additionally, the company provides the system expertise and design resources needed to help designers get their LED IC-based products to market faster.





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