Categories

App note: Hot-swap circuits

Posted on Sunday, October 7th, 2012 in app notes by DP

Here is an tutorial from Maxim describing hot-swap circuits, and the advantages of dedicated hot-swap ICs over discrete component circuits. Hot-swaps are designed to protect the rest of the circuitry when power is applied. Inrush current limiting, circuit breaking, over and under voltage protection, etc..

This application note discusses hot-swap ICs. Typical hot-swap circuits are described and the advantages of different hot-swap circuits are explained.

This entry was posted on Sunday, October 7th, 2012 at 9:00 pm and is filed under app notes. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

One Response to “App note: Hot-swap circuits”

  1. Ron Owens says:

    Thank you for the ap note. I built this and it works great. My load circuit is approximately 1.2A and has 3 DC-DC converters on the front end. Input capacitance is 30uF @57V. I used a Si2337DS P-channel MOSFET and a MMBT3906 bipolar transistor to keep it small, both parts are SOT23 packages.

Leave a Reply

Notify me of followup comments via e-mail. You can also subscribe without commenting.

Recent Comments

  • KH: He had qualms about electrolytic cap leakage impacting sleep current. I think such leakage is very low and hard to measure using hobby equipment, so...
  • Mike: Love these! great source for makers!
  • KH: Is my eyes playing tricks on me or did he just use gobs and gobs of solder on the top side?
  • Doug: When do we find out the winner??
  • KH: Oh wowsers, you're right, now that I've looked at his page, horrors, another scary copper pour. That thing also needs a box... I hope nobody...