50-W, 120-V AC Offline, LED Driver, No Magnetics, Reference Design for LED General Lighting
TIDA-01399
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Description

The TIDA-01399 TI Design showcases the TPS92410 and TPS92411 with 50-W output power for area lighting with all components on a single printed-circuit board (PCB). This design uses four TPS92411 stages allowing 16 different switch states during the rising and falling rectified-AC waveform, which optimizes the current-regulating MOSFET headroom. The TPS92410 allows monotonic analog dimming down to 3% before shutting off the current regulator. Electromagnetic interference (EMI) filtering without magnetics has been included and designed to meet FCC Title 47 Part 15 class-B conduction requirements.

Features
  • Non-Isolated 120-V AC Offline LED Driver With No Magnetics
  • Efficiency: 86.5%, Power Factor: 0.97, THD: 10.5%
  • FCC Title 47 Part 15 Class-B Tested EMI
  • Current Regulator for Power Factor Correction With Multiplier for Line Regulation
  • Allows Simple NTC Thermal Foldback
  • Monotonic Analog Dimming to 3% With Shutdown; Deeper Dimming Using TSNS Input

See the Important Notice and Disclaimer covering reference designs and other TI resources.


  



Schematic/Block Diagram

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Design Files

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TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS92410  Switch-controlled, direct drive, linear controller for offline LED drivers  LED drivers  Sample & Buy View Design Kits & Evaluation Modules
TPS92411  Floating switch for offline AC linear direct drive of LEDs with Low Ripple current  LED drivers  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS92410 SOIC (D)| 13 Download -
TPS92411 Download
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