/challenges-projects/design-challenges/in-the-air-design-challenge/b/blog/posts/firecracker-analyzer-testing-the-texas-instruments-bq25504---successMy Question to TIDoes the VSTOR Pin provide output voltage in the absence of the VIN BUT in the presence of a Storage element.? NOT! IntroductionI finally got around to testing the BQ25504 and it was not what I expected but I am stupid so its al...en-USTelligent Community 12https://community.element14.com/challenges-projects/design-challenges/in-the-air-design-challenge/b/blog/posts/firecracker-analyzer-testing-the-texas-instruments-bq25504---successMon, 23 Feb 2015 12:10:57 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:88b88b8c-9ec6-44d2-8c43-5e1cc8789501mcb11<p>IP</p><p>I don&#39;t follow what the problem is.</p><p>The BQ2504 is designed to convert the energy at the input into a voltage at the Output.</p><p>Since you have no storage attached (VBat) it will not behave the same.</p><p>&nbsp;</p><p>I suspect the sudden rise when re-applying power is the different mode as there is some charge.</p><p><span>[View:/resized-image/__size/774x31/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-88b88b8c-9ec6-44d2-8c43-5e1cc8789501/contentimage_5F00_178373.png:774:31]</span></p><p>&nbsp;</p><p>Also your schematic is missing the capacitor across the input.</p><p><span>[View:/resized-image/__size/863x114/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-88b88b8c-9ec6-44d2-8c43-5e1cc8789501/contentimage_5F00_178374.png:863:114]</span></p><p>&nbsp;</p><p>Mark</p><img src="https://community.element14.com/aggbug?PostID=19991&AppID=102&AppType=Weblog&ContentType=0" width="1" height="1">