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Operation modes in R2A20134SP LED controller

Posted: 30 Dec 2011     Print Version  Bookmark and Share

Keywords:control IC  LED lighting  Critical Conduction mode 

Renesas Electronics' R2A20134SP is a control IC for LED lighting. It has two operation modes, critical conduction mode (CRM) and fixed switching frequency mode. User can choose one suitable mode for their purpose.

At CRM, this IC can control LED current precisely and correct power factor and achieve high efficiency by zero-current switching. At fixed-frequency mode, user can reduce the external components dramatically. At peak current control mode applying fixed switching frequency mode realised the minimum numbers of external components, smallest packaging and low BOM cost. Also this allows the isolated flyback operation.

View the PDF document for more information.

Originally published by Renesas Electronics at as "R2A20134SP: Application Note".

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