• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 62 subscribers
  • Views 570 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

AC dimming LED driver

Lee Bosch
Prodigy 10 points
Other Parts Discussed in Thread: LM3445, LM3444

We attempting to build LED lights that run on AC voltage with dimming capabilities.  We are trying to use a continuous AC voltage to power the fixtures and a small AC signal to control dimming.  Does TI have a driver with the capabilities that we require?

Thank you,

Lee Bosch

Electrical Engineering student at St. Cloud State University

  • 0
    TI__Mastermind 28655 points
    TI has a lot of parts that power LEDs from AC. There are a lot of things to consider when choosing a part such as does it need to be isolated or not. How much power is delivered to the LEDs and a bunch of compliance issues if it will be a product. A fairly simple part to look at would be the LM3445 or LM3444 depending on how you want to dim the LEDs. A buck converter with hysteretic control is easy to implement.