• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Answers 1 answer
  • Subscribers 64 subscribers
  • Views 144 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.

LM3643: Some pin connections

Antony Lin
Genius 13480 points
Part Number: LM3643

Hi,

We have some questions about LM3643 as listed below, would you share your inputs?  Thanks!

  1. If oe only need FLASH function but don't need Torch function, how should we connect Torch/Temp pin and STROBE pin?
  2. How should we connect TX pin if we don't need related function?
  3. Should we use a GPIO to control HWEN and drive it high before we control flash light via I2C?
  4. Is I2C address the only difference between LM3643 and LM3643A?

Thanks!

Antony