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Output current sensing for extreme switch devices

Posted: 28 Apr 2014  Print Version  Bookmark and Share

Keywords:current sense  eXtreme switches  light emitting diodes  LED  calibration 

This application note describes the current sense performance of Generation 4 of eXtreme switches, and describes the enhanced current sense mode dedicated for low current loads, such as light emitting diodes (LED). This application note also presents the accuracy for 7.0 mOhm and 17 mOhm channels, and the practical implementation of a calibration procedure to get optimised results. This document is based on statistical analysis of three different assembly lots for a total of 283 parts. It does not consider errors linked to MCU and the external resistor connected to CSNS pin.

View the PDF document for more information.

Originally published by Freescale Semiconductor at www.freescale.com as "Output Current Sensing For the MC07XS6517 and MC17XS6500 Extreme Switch Devices".





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