The STEVAL-ILL045V1 demonstration board showcases ST’s new LED driver chip, HVLED815PF.

The RT7310 is a high power factor constant current LED driver which is optimized for the compatibility with phase-cut dimmers. It supports high power factor across a wide range of line voltages, and it drives the converter in the Quasi-Resonant (QR) mode to achieve higher efficiency.

This board implements an offline power converter based on a single stage high-PF flyback topology using the HVLED001A controller.

The EVALHVLED805 is a demonstration board equipped with the new HVLED805 PWM current mode LED driver and is designed for European mains. It can control, with very good accuracy, from 1 to 3 LEDs having a nominal current of 350mA. The HVLED805 has integrated high voltage startup and an 800 V power MOSFET.

This application note describes the principles and design equations required for the design of a high brightness LED lamp using the AL9910. The equations are then used to demonstrate the design of a universal, offline, high power factor (PF), 13W LED lamp suitable for use as the replacement for T8 fluorescent tube. A complete design including the electrical diagram, component list and performance…

The VIPer12A is low cost monolithic smart power devices with integrated PWM controller designed to operate in the wide range input voltage, from 90 to 264Vac.

* For Constant Current, the board must be modified as described on page 6 of the user guide. * This application note describes the characteristics and features of a 130 W demonstration board (EVL130W-SL-EU), tailored on an LED power supply specification for street lighting.

In this application note, a non-isolated, soft-switched, singles tage high power factor offline LED driver is introduced. The buck-boost converter is chosen for this application due to its simplicity and low cost.

The STEVAL-ILL001V1 evaluation board introduces an innovative solution for driving high brightness 1 W LEDs (light emitting diodes), using the VIPer22A-E in a flyback configuration with output current control.

The STEVAL-ILL034V1 demonstration board is able to implement a non-dimmable, non-isolated LED driver.