120VFLBK-LM3445 evaluation board optimized for 120V input isolated applications


Order now


This demonstration board highlights the performance of a LM3445 based Flyback LED driver solution that can be used to power a single LED string consisting of 4 to 8 series connected LEDs from an 90 VRMS to 135 VRMS, 60 Hz input power supply. The key performance characteristics under typical operating conditions are summarized in this application note. This is a two-layer board using the bottom and top layer for component placement. The demonstration board can be modified to adjust the LED forward current, the number of series connected LEDs that are driven and the switching frequency.

  • Drop-in compatibility with TRIAC dimmers
  • Line injection circuitry enables PFC values greater than 0.95
  • Adjustable LED current and switching frequency
  • Flicker free operation


  • Retro-fit TRIAC Dimming
  • Solid State Lighting
  • Industrial and Commercial Lighting
  • Residential Lighting


Illumination LED drivers
LM3445 Triac dimmable offline LED driver
Download View video with transcript Video

Order & start development

Evaluation board

LM3445-120VFLBK/NOPB — 120VFLBK-LM3445 evaluation board optimized for 120V input isolated applications

Log in to order
In stock / Out of stock
Not available on TI.com
TI's Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 3
Type Title Date
* Application note AN-2034 LM3445 -120VAC, 8W Isolated Flyback LED Driver (Rev. C) 01 May 2013
Certificate LM3445-120VFLBK/NOPB EU Declaration of Conformity (DoC) 02 Jan 2019
Certificate LM3445-120VFLBK/NO EU Declaration of Conformity (DoC) 02 Jan 2019

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. ​​​​​​​​