120 VAC 7W PFC Wall Dimmable AC Linear Floating Switch LED Driver Reference Design


Design files


This magnetic-free (no transformer/inductor), small form-factor, LED driver circuit is ideal for use in LED lamps, downlights, and fixtures.  The design takes advantage of relatively new high forward-voltage (22V), low-current (20mA) white LEDs to realize a compact design producing >800 lumens from about 9W of input power.  The novel floating switch architecture produces low LED current ripple comparable to single-stage SMPS based designs while providing excellent compatability with a wide range of common household wall dimmers.

  • 6-7W LED output power, >800 Lumens
  • Operates with forward (TRIAC) and reverse-phase wall dimmers
  • Power factor corrected > 0.9
  • Low LED current ripple
  • Low conducted EMI, no radiated EMI
?? View video with transcript Video

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU956.PDF (2026 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers


Detailed overview of design layout for component placement

TIDREK5.ZIP (3814 K)

Files used for 3D models or 2D drawings of IC components

TIDCA76.ZIP (294 K)

Design file that contains information on physical board layer of design PCB

TIDREK4.PDF (1191 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Illumination LED drivers

TPS92411Floating switch for offline AC linear direct drive of LEDs with Low Ripple current

Data sheet: PDF | HTML

Technical documentation

No results found. Please clear your search and try again.
View all 1
Type Title Date
Test report PMP6022 Test Results Apr. 17, 2015

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​