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Texas Instruments UCC28811 | Demoboard SLUU424
Non-Isolated 240W Offline LED Driver Using UCC28810, and UCC28811
Overview
| Topology | Buck Converter |
| Input voltage | 108-265 V |
| Output 1 | 85 V / 3 A |
Description
This driver is comprised of two stages, PFC stage and Buck stage. Both stages are operating in criticalconduction mode. A constant current is controlled to provide 3 A to LED strings, with output voltage rangefrom 70 V to 85 V.
Features
- 108 VRMS to 265 VRMS Offline Operation
- Power Factor Correction
- Boost Follower
- Constant Current Control
- Onboard or External PWM Dimming
Typical applications
- Street Lighting
- High Bay Lighting