Eagle Parts: MIC2027 Quad USB power distribution switch

Posted on Tuesday, October 2nd, 2012 in Eagle parts by DP

We added MIC2027 Quad USB power distribution switch to our Eagle library. This part is used to limit the outgoing current to the USB maximum 500mA.

In case of a short circuit, an over-current pin for the corresponding channel is raised high. At the same time the device switches to a current limiting mode. This gives the controller the opportunity to switch off the power via the corresponding EN pin.

MIC20xx family of devices seem as a very good alternative to fuses in power supplies with microcontrollers. They come in 800mA, 1A, and 1.2A current limit versions, as well as adjustable ones. Versions with automatic circuit breaking can be found as well, which cut the power in an over-current event, instead of limiting it. Other features include thermal shutdown, and under-voltage protection.

This entry was posted on Tuesday, October 2nd, 2012 at 5:00 pm and is filed under Eagle parts. 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.

Leave a Reply

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

Recent Comments

  • KH: A lot of projects that we make will never be cheaper than commodity hardware. It's a choice that each of us will have to make...
  • Drone: @Cyk says: "Well, this is an application that I’d solve with an Android smartphone" BAD idea Cyk: Android Smartphone = Spy on Me Google!
  • Cyk: Well, this is an application that I'd solve with an Android smartphone. Used Moto G phones can be found on Ebay for ~€30, and thanks...
  • Noy: Yuuup
  • Vibhore: I'm waiting. *Fingers_crossed