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{
"ticketNumber" : "879951",
"reporterName" : "Revanth A1",
"rankPoints" : "170",
"resolutionStatus" : "TI Thinks Resolved",
"ticketName" : "PTD08D210W: UCD9248 controled by PTD08D210 problem",
"rankName" : "Prodigy",
"replies" : " 11",
"views" : " 95",
"queryText" : "Part Number: PTD08D210W Hi, I found that PTD08D210 is generating a voltage of 5.9V even when the UCD9248 is not configured. PTD08D210 has two power output and this problem is seen only in one channel, I even erased the UCD Flasmemory and confirmed that no PWM is going to PTD08D210 but still i see 5.9V in one of the channel. Note: My evel board has 4 PTD08D210 which means 8 o/p voltage channels and 2 UCD9248 to control it , out of which in only one channel i have this problem. Is it the problem with the PTD08D210 , it was working fine only suddenly in one day this problem happened.",
"partNumber" : " PTD08D210W",
"allResponseList" : [ {
"contentId" : "3255942",
"userName" : "iAlejandro",
"rankPoints" : "2390",
"rankName" : "Intellectual",
"date" : "Feb 13, 2020 6:44 PM",
"userId" : "5259049",
"content" : "Hi Revanth, If comfortable, can you provide more information about your application? Application conditions: Input and Output voltage, output current? (the device is rated to provide an output range from 0.7 V to 3.6 V) Perhaps we can take a look at your circuit schematic? Thanks, Alejandro"
}, {
"contentId" : "3256424",
"userName" : "Revanth A1",
"rankPoints" : "170",
"rankName" : "Prodigy",
"date" : "Feb 14, 2020 4:59 AM",
"userId" : "5998636",
"content" : "Hi, Alejandro Kindly look into thje attached pdf zc702_Schematic_xtp185_rev1_0.pdfPage 43, U19 The output is rated at 1.5V and 3.3V for this particular PTD in which the 1.5V channel is having the problem"
}, {
"contentId" : "3264169",
"userName" : "iAlejandro",
"rankPoints" : "2390",
"rankName" : "Intellectual",
"date" : "Feb 21, 2020 5:35 PM",
"userId" : "5259049",
"content" : "Hi Revanth, I reviewed your schematic and everything seems okay. You mentioned that it was working before and eventually something happened; Can you tell me more details about that? Did it involve updating anything on the UCD? Regards, Alejandro"
}, {
"contentId" : "3264611",
"userName" : "Revanth A1",
"rankPoints" : "170",
"rankName" : "Prodigy",
"date" : "Feb 22, 2020 9:50 AM",
"userId" : "5998636",
"content" : "Hi, Alejandro One sudden day we noticed our DDR Not working, then when we checked the voltage going to DDR section from PTD it was 2.5 V instead of 1.5 V, then when we isolated the DDR , WE found that the voltage from PTD IS 5.6 V half of the input voltage to PTD AND UCD., We earsed the UCD Flash memory to and even when no PWM IS going to PTD it generates 5.9 V. I just thinking to change the PTD and see."
}, {
"contentId" : "3268794",
"userName" : "Jimmy Hua",
"rankPoints" : "17640",
"rankName" : "Genius",
"date" : "Feb 27, 2020 12:28 AM",
"userId" : "4798049",
"content" : "Hi Revanth, Is there an update on this? If you were to swap out the PTD08D210 for a new one, does the problem still occur? How many of these failures have you seen occur in your application? Regards, Jimmy"
}, {
"contentId" : "3271366",
"userName" : "Revanth A1",
"rankPoints" : "170",
"rankName" : "Prodigy",
"date" : "Feb 29, 2020 4:16 AM",
"userId" : "5998636",
"content" : "Hi, Jimmy Just now received the components and will update the status once the rework has been done. In our application we have faced these issue two times (at rail 1.5V and at Rail 3.3V)."
}, {
"contentId" : "3272477",
"userName" : "Jimmy Hua",
"rankPoints" : "17640",
"rankName" : "Genius",
"date" : "Mar 2, 2020 4:02 PM",
"userId" : "4798049",
"content" : "Hi Revanth, Please keep Alejandro and I updated on your additional testing at your earliest convenience. Regards, Jimmy"
}, {
"contentId" : "3292983",
"userName" : "Jimmy Hua",
"rankPoints" : "17640",
"rankName" : "Genius",
"date" : "Mar 20, 2020 8:12 PM",
"userId" : "4798049",
"content" : "Hi Revanth, Do you have any updates for both Alejandro and I? Regards, Jimmy"
}, {
"contentId" : "3293174",
"userName" : "Revanth A1",
"rankPoints" : "170",
"rankName" : "Prodigy",
"date" : "Mar 21, 2020 5:28 AM",
"userId" : "5998636",
"content" : "Hi, Jimmy we tried replacing the IC which was available in the PTD , instead of replacing the whole PTD but it dint workout, now we have sent our board to remove the whole PTD (Since the ground thermal pads are thick it difficult to remove easily). but now due the situation due to COVID-19 , most of the companies are shutdown now and it will take some time to receive our board. I will let yu know once we receive and test it. Thanks!"
}, {
"contentId" : "3297251",
"userName" : "Jimmy Hua",
"rankPoints" : "17640",
"rankName" : "Genius",
"date" : "Mar 25, 2020 10:05 PM",
"userId" : "4798049",
"content" : "Hi Revanth, Sorry I missed your reply and thank you for the update. It is unfortunate that we are in the COVID-19 predicament and I hope all is well on your end. I will keep this thread up on place it under \"Waiting for Customer\" status and will ping me when you reply back with more information on this. Regards, Jimmy"
} ],
"tags" : [ "/support/power-management/f/196/tags/PTD08D210W", "/support/power-management/f/196/tags/UCD9248", "/support/power-management/f/196/tags/PTD08D210%2bUCD9248%2b%2b%2bOVP" ],
"fourmType" : "TI"
}