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LEDs AC Mains Drivers for Architectural Lighting & Street Illumination


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System Overview

AC supplied light sources have so far been fitted mainly with incandescent and halogen lamps. Today's advances in LED technology allow the use of new high-power LEDs not only for specially designed light fixtures, but also as a general lighting replacement. With suitable electronic control, LEDs are not only strong light sources, but also outperform their incandescent predecessors in terms of lifetime and size. The following diagram proposes a wide range of products applicable to LED drivers and LED power supplies working directly off the AC mains. The selection is based on the most useful devices. For the complete range of ST’s products, please refer to the product selector. 


Select
Use this block diagram to select the right products

Key Products
VIPER17 Off-line high voltage converter
VIPER12 & VIPER22 Low-power OFF-Line SMPS primary switcher
L6562A Transition-mode PFC controller
TSM1051, TSM1052 Constant current and constant voltage controller
MOSFETs Power MOSFETs
Press releases
New Viper17 family
Tutorial
Tutorials for power management applications
Web seminar
Designing power supplies with Viper22 and Viper 12
F A Q
Viper FAQs
Design
To help you design your project, the following application notes and reference designs are available from ST.

Application notes
AN1060 Flyback converters with Power Factor Correction
AN1059 Design equations to control flyback converters
AN1916 VIPower offline constant current LED driver using
AN2042 VIPower dimmable driver for high brightness LEDs with
AN1894 VIPer12a non isolated buck and buck-boost converter ref. board

Reference designs
STEVAL-ILL001V1 Dimmable driver for HB Power LEDs with Viper22A
STEVAL-ILL005V1 VIPer12A offline driver for high intensity LEDs
STEVAL-ILL006V1 VIPer22A offline driver for high intensity LEDs
Boards brochure ST e valuation boards for application support

Tools and software
Design software VIPer design software v2.24