This document describes the features and characteristics of the STEVAL-ILL016V2, a 15 watt regulated Triac-dimmable LED driver from STMicroelectronics. The driver is designed for the North American (115V) market and can drive strings of 4 to 12 jumper-selectable white LEDs connected in series. It has a maximum current of 1A (preset for 350mA as shipped), an undimmed power factor greater than 0.9, LED current ripple less than 20% P-P, and an isolated output for safe LED heatsinking. The driver is RoHS compliant.
The STEVAL-ILLO16V2 is an upgraded version of the STEVAL-ILLO16V1, serving as a demonstration board for developing 15-watt regulated Triac-dimmable LED drivers. It operates on a line voltage range of 96-132 V at 60 Hz and drives strings of 4 to 12 white LEDs connected in series.
| Line voltage range | 96-132 V 60 Hz |
|---|---|
| LED string configuration | 4 to 12 jumper-selectable white LEDs in series |
| Max current | 1 A max (preset for 350 mA) |
| Undimmed power factor | > 0.9 |
| LED current ripple | < 20% P-P |
Its purpose is to make development for different LED combinations easier to implement and to incorporate improvements based on lessons learned from the first version.
Improvements include easy configuration of LED voltage and current, flexible input filter layout, and sufficient space for modifying basic circuitry.
The unit is a 15 watt regulated Triac-dimmable LED driver.