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STMicroelectronics introduces offline driver for RGGB LEDs
The STEVAL-ILL019V1 evaluation board is an LED driver specifically designed to control 4 independent LED strings, either white or RGGB. It targets applications like interior, decorative and street lighting for a total power up to 42W (for European Mains) or 32W (for Wide Input Mains).
The reference design comprises of a 2-stage isolated solution: the input stage performs power factor correction (controlled by an L6562A transition-mode PFC) and generates a 48V bus where 4 independent DC-DC modules control LED string current. These DC-DC modules regulate LED current from the maximum level of 350mA down to a dimmed brightness lower than 1%, without flickering effects.
- Features
- Line voltage range: 88 to 265 Vac
- 4-channel LED driver
- Constant LED current: 350 mA
- Load: 5 to 13 LEDs per channel
- Rated output power: 32 W (wide voltage range)
- Rated output power: 42 W (EU voltage range)
- Isolated SMPS
- Individual RGGB brightness regulation
- EN55015 and EN61000-3-2 compliant
- Applications
-
- Design lighting
- Decorative lighting
- Wall washing lighting
- Multicolour lighting
- Street lighting
For more information, or details on the full range of STMicroelectronics products available from Anglia, please call email info@anglia.com
This news article was originally published in February 2011.
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