TI E2E Community
/etc... Power Forum
LM5072-80 PoE Power Up Sequence Problem
Need help with following for customer; please email me to get the schematic ...
I have attached the schematic for the Power over Ethernet part of our design, which uses the LM5072-80. Please treat this information as confidential, according to the terms of our NDA.
We recently built 10 systems using this part. Two of the parts failed during initial board test; two additional parts failed in systems – they worked for a while then failed during power cycling. Any help that TI/National can provide in reviewing our design would be greatly appreciated – we are in preproduction now and need to resolve the issue immediately.
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with respect to these materials. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.