topic Re: How to get Maximum Supply Currents in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/How-to-get-Maximum-Supply-Currents/m-p/491103#M78802 <HTML><HEAD></HEAD><BODY><P>Hi Igor</P><P></P><P>Thank you for quick reply.</P><P>I understand.</P><P></P><P>Ko-hey</P></BODY></HTML> Mon, 02 May 2016 01:46:17 GMT ko-hey 2016-05-02T01:46:17Z How to get Maximum Supply Currents https://community.nxp.com/t5/i-MX-Processors/How-to-get-Maximum-Supply-Currents/m-p/491101#M78800 <HTML><HEAD></HEAD><BODY><P>Hi all</P><P></P><P>As for the "Table 14. Maximum Supply Currents" in <A href="http://cache.nxp.com/files/32bit/doc/data_sheet/IMX6SXCEC.pdf?fpsp=1&amp;WT_TYPE=Data%20Sheets&amp;WT_VENDOR=FREESCALE&amp;WT_FILE_FORMAT=pdf&amp;WT_ASSET=Documentation&amp;fileExt=.pdf">IMX6SXCEC</A>.</P><P>It's not mentioned about how to get a value.</P><P></P><P>I found a calculation formula for i.MX6Q from following thread in i.MX community.</P><P><A href="https://community.nxp.com/thread/359739">About max supply current in i.MX6Q.</A></P><P>The formula is as follow.</P><P>--------------------------------------------------</P><P style="font-family: arial, helvetica, 'helvetica neue', verdana, sans-serif; color: #51626f;">General equation for estimated, maximum power consumption of an IO power supply:</P><P style="font-family: arial, helvetica, 'helvetica neue', verdana, sans-serif; color: #51626f;">Imax = N x C x V x (0.5 x F)</P><P style="font-family: arial, helvetica, 'helvetica neue', verdana, sans-serif; color: #51626f;">Where:</P><P style="font-family: arial, helvetica, 'helvetica neue', verdana, sans-serif; color: #51626f;">N—Number of IO pins supplied by the power line</P><P style="font-family: arial, helvetica, 'helvetica neue', verdana, sans-serif; color: #51626f;">C—Equivalent external capacitive load</P><P style="font-family: arial, helvetica, 'helvetica neue', verdana, sans-serif; color: #51626f;">V—IO voltage</P><P style="font-family: arial, helvetica, 'helvetica neue', verdana, sans-serif; color: #51626f;">(0.5 xF)—Data change rate. Up to 0.5 of the clock rate (F)</P><P style="font-family: arial, helvetica, 'helvetica neue', verdana, sans-serif; color: #51626f;">In this equation, Imax is in Amps, C in Farads, V in Volts, and F in Hertz.</P><P>--------------------------------------------------</P><P></P><P>Is the formula appropriate to i.MX6SoloX ?</P><P></P><P></P><P>Ko-hey</P></BODY></HTML> Mon, 02 May 2016 00:57:42 GMT https://community.nxp.com/t5/i-MX-Processors/How-to-get-Maximum-Supply-Currents/m-p/491101#M78800 ko-hey 2016-05-02T00:57:42Z Re: How to get Maximum Supply Currents https://community.nxp.com/t5/i-MX-Processors/How-to-get-Maximum-Supply-Currents/m-p/491102#M78801 <HTML><HEAD></HEAD><BODY><P>Hi Ko-hey</P><P></P><P>you are right: this formula is applicable to i.MX6SX too.</P><P></P><P>Best regards</P><P>igor</P><P>-----------------------------------------------------------------------------------------------------------------------</P><P>Note: If this post answers your question, please click the Correct Answer button. Thank you!</P><P>-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Mon, 02 May 2016 01:39:57 GMT https://community.nxp.com/t5/i-MX-Processors/How-to-get-Maximum-Supply-Currents/m-p/491102#M78801 igorpadykov 2016-05-02T01:39:57Z Re: How to get Maximum Supply Currents https://community.nxp.com/t5/i-MX-Processors/How-to-get-Maximum-Supply-Currents/m-p/491103#M78802 <HTML><HEAD></HEAD><BODY><P>Hi Igor</P><P></P><P>Thank you for quick reply.</P><P>I understand.</P><P></P><P>Ko-hey</P></BODY></HTML> Mon, 02 May 2016 01:46:17 GMT https://community.nxp.com/t5/i-MX-Processors/How-to-get-Maximum-Supply-Currents/m-p/491103#M78802 ko-hey 2016-05-02T01:46:17Z