• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 63 subscribers
  • Views 291 views
  • Users 0 members are here
Support feedback
Options
Options
Related

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.

TPS61165 - 8 strings of 6 LED driver needed

Ahmed Belgana69308
Prodigy 170 points
Other Parts Discussed in Thread: TPS61165

I need to develop street lighting circuit control, the lighting is based on multi string LED. i have 8 strings each have 6 LED, the forward voltage is 3V by led, i want to drive evry string with 350 mA. i use TPS61165, but i want to use it with DSP controller. how can i do that.

  • 0
    TI__Guru**** 167726 points

    If you mean you want to drive EACH string with 350mA then the total output power is 350mA*8*3V*6=50.4W.  The TPS61165 cannot provide that much power. 

    If you mean you want to 350mA applied to all 8 strings than the total output power is 350mA*3V*6 = 6.3W.  The TPS61165 can provide this if the input voltage is higher than 6.6V.

    Can you clarify the current per string and provide your input voltage?