The embedded engineering webstie that's got your back.

Recent Updates:

How To Parse Mathematical Expressions
Modified: 23 August, 2019
A walkthrough on how to parse a mathematical expression. Covers grammar, lexers, parsers, RPN, infix and postfix notation, ASTs and more.
A Brief History Of C++
Modified: 20 August, 2019
clang
Modified: 19 August, 2019
Qt (cute)
Modified: 18 August, 2019
Info about the the Qt software framework/library, including threading, serial ports and more.
RaspberryPi
Modified: 10 August, 2019

POWER MANAGEMENT

Load Switches

Date Published:	November 8, 2013
Last Modified:	November 8, 2013

MOSFET Based

The following image shows a MOSFET based high-side switch:

A high-side load switch made from a N-Channel and P-Channel MOSFET.

IC Based

The following image shows an IC based high-side switch.

The TPS27082LDDCR, a high-side load switch IC.

Some load-switches have reverse-polarity protection. More information of how they exactly implement reverse-protection with only the one MOSFET can be found in the The Substrate (Body) Connection section of the MOSFET page.

A functional diagram of the NCP380 high-side load switch. Note the switches connected to the MOSFET substrate which show how reverse-current protection is performed.

Like this page? Upvote with shurikens!

Tags:

comments powered by Disqus