https://e2e.ti.com/support/legacy_forums/hirel/<p style="display:none;">blank</p>en-USTelligent Community 13https://e2e.ti.com/support/legacy_forums/hirel/f/space-high-reliability-forum-read-only/668120/tlk2711-sp-is-there-an-eye-diagram-mask-definition-available/2921183Thu, 04 Apr 2019 20:35:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:01e19916-d215-4710-b551-e2672f5d5b2eWade VonbergenIt was noted that this eye was based on single ended, and not differential. The correct estimated mask for the full differential pk pk input for receiver would be 2x in height.TLK2711-SPhttps://e2e.ti.com/support/legacy_forums/hirel/f/space-high-reliability-forum-read-only/720085/tps7a4501-sp-power-up-over-voltage/2687181Thu, 13 Sep 2018 21:12:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:f83eee7d-debc-407e-8c5b-9307f87de2dbDaniel HartungHey Assaf, Were you able to take measurements on the board? Did the issue resolve itself? Thanks, DanielTPS7A4501-SPhttps://e2e.ti.com/support/legacy_forums/hirel/f/space-high-reliability-forum-read-only/713634/tps73201-ep-the-overcurrent-limit-is-over-spec/2675106Tue, 04 Sep 2018 17:45:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:4b0f0dce-9329-4a14-b1a0-cfbe804d97daDaniel HartungHey Cage, Vin=3.3 V and Vout = 3 V satisfies (1) Minimum VIN = VOUT + VDO or 1.7 V. The reason the customer is seeing it as higher is actually due to the test condition at the top of the table which says VIN = VOUT(nom) + 0.5 V. This is at the top of the table 6.5 on page 6 of the datasheet. Thanks, DanielTPS73201-EPhttps://e2e.ti.com/support/legacy_forums/hirel/f/space-high-reliability-forum-read-only/713634/tps73201-ep-the-overcurrent-limit-is-over-spec/2673838Mon, 03 Sep 2018 12:16:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:54cceb2f-960a-4d00-b1e6-31f92b12d58bCage ChenHi Daniel, Yes, Vin=3.3V, Vout=3V. So the datasheet should need to add extra test conditions in the item of output current limit. Because in datasheet, the test conditions is only showing Vout=0.9xVout(nom). Thank you. Best regards, Cage.TPS73201-EPhttps://e2e.ti.com/support/legacy_forums/hirel/f/space-high-reliability-forum-read-only/713634/tps73201-ep-the-overcurrent-limit-is-over-spec/2673818Mon, 03 Sep 2018 12:02:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:a82e8f8a-9c21-471c-ae90-861766b5cc73Daniel HartungHey Cage, Please show the customer footnote one in the datasheet for the table. (1) Minimum VIN = VOUT + VDO or 1.7 V, whichever is greater Have their tests been with &lt;1.7 V between Vout and Vin? Thanks, DanielTPS73201-EPhttps://e2e.ti.com/support/legacy_forums/hirel/f/space-high-reliability-forum-read-only/713634/tps73201-ep-the-overcurrent-limit-is-over-spec/2673158Sat, 01 Sep 2018 06:01:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:61a9ce67-79e8-4d86-bd4f-e427f9240bc4Cage ChenHi Daniel, Yes, the current probe is very accurate, and even scope is very accurate. After they removed output cap, the overcurrent limit is just slightly reduced from 624mA to 612mA. Customer just needs a explanation why it is over spec. Thank you. Best regards, Cage. ps, Customer also mentioned one thing, if the difference between Vin and Vout is small, the current limit will be easy to over 600mA, if it is big, the current limit will be about 580mA or smaller.TPS73201-EPhttps://e2e.ti.com/support/legacy_forums/hirel/f/space-high-reliability-forum-read-only/708482/ina271-ht-ina271shkq/2672855Fri, 31 Aug 2018 23:30:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:8bd1907c-dcab-48fa-a079-2a8527ed8dd0Kirby Kruckmeyer96848The Au plate thickness is 60 to 225 micro inches.INA271-HThttps://e2e.ti.com/support/legacy_forums/hirel/f/space-high-reliability-forum-read-only/708483/ref5025-ht-ref5025shkq/2672852Fri, 31 Aug 2018 23:28:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:4360b0c1-c020-417f-893b-404ddd86ce1bKirby Kruckmeyer96848TheAu plate thickness is 60 to 225 micro inches.REF5025-HThttps://e2e.ti.com/support/legacy_forums/hirel/f/space-high-reliability-forum-read-only/716223/alternate-device-for-snj55464jg/2672639Fri, 31 Aug 2018 20:42:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:9bf519d0-0770-4660-baee-149795edf183Wade VonbergenAaron, I did not get any additional information on alternate device. Marking this post as closed. Regards, Wadehttps://e2e.ti.com/support/legacy_forums/hirel/f/space-high-reliability-forum-read-only/720283/sn74lvc1t45-ep-leakage-in-power-domains/2672636Fri, 31 Aug 2018 20:41:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:bb0af96c-4302-40e1-84f1-e9a0dfbe2316Wade VonbergenLet me know if you need further information. Marking this post as closed. Regards, WadeSN74LVC1T45-EPhttps://e2e.ti.com/support/legacy_forums/hirel/f/space-high-reliability-forum-read-only/713634/tps73201-ep-the-overcurrent-limit-is-over-spec/2672601Fri, 31 Aug 2018 20:27:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:391ea174-8ed2-48e6-bb29-0e625d6b8621Daniel HartungHey Cage, Was the customer able to take these measurements? Thanks, DanielTPS73201-EPhttps://e2e.ti.com/support/legacy_forums/hirel/f/space-high-reliability-forum-read-only/720086/tps7a4501-sp-powerup-overshoot/2672598Fri, 31 Aug 2018 20:25:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:36656862-623c-48c0-b493-75eaa1e41565Daniel HartungHello Itai, Are there any updates on the previous questions? If there are no updates I will close the thread. Thanks, DanielTPS7A4501-SPhttps://e2e.ti.com/support/legacy_forums/hirel/f/space-high-reliability-forum-read-only/723169/uc1845-how-to-pick-rt-ct-values/2668158Wed, 29 Aug 2018 03:35:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:1a39c41c-511d-4c14-8f97-303ffc995e78Yue Wei91Okay, Thank you.UC1845https://e2e.ti.com/support/legacy_forums/hirel/f/space-high-reliability-forum-read-only/723169/uc1845-how-to-pick-rt-ct-values/2668144Wed, 29 Aug 2018 03:25:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:9e3823de-8c22-41f2-a94a-42a1155e82bbDaniel HartungHey Yue, I believe that the comment in the pin functions table is simply referring to the 5k recommendation, but you can always be safe and use capacitance lower for now. I believe the real issue lies in the fact the clock ramp signal will become somewhat non-linear due to being an RC curve with really small values used. This may cause problems the clock changing over temperature, but that is something that would need to be tested in circuit. Thanks, DanielUC1845https://e2e.ti.com/support/legacy_forums/hirel/f/space-high-reliability-forum-read-only/723169/uc1845-how-to-pick-rt-ct-values/2668110Wed, 29 Aug 2018 03:02:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:02d65933-c7a8-4464-ad54-a2bb7d269877Yue Wei91Hi Daniel, Thanks for the reply. I was trying to lower the capacitance value because I saw that in the Pin Functions Table, it says &quot;Never use a timing resistor less than 5Kohm&quot;. (datasheet Pin Functions Table RT/CT) So I guess that&#39;s an absolute constraint on the resistor RT. Is that true? Thanks, YueUC1845https://e2e.ti.com/support/legacy_forums/hirel/f/space-high-reliability-forum-read-only/723169/uc1845-how-to-pick-rt-ct-values/2668095Wed, 29 Aug 2018 02:48:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:beaf5978-aea8-40be-b52a-5ec86fb7d3ccDaniel HartungHey Yue, The numbers you talk about are just recommendations, if there is a need to go to a higher switching frequency you can certainly try different values. My suggestion would be trying to go lower with resistance rather than capacitance. Thanks, DanielUC1845https://e2e.ti.com/support/legacy_forums/hirel/f/space-high-reliability-forum-read-only/723083/sm320f28335-ep-need-something-with-higher-switching-frequency-for-sic/2667811Tue, 28 Aug 2018 23:32:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:65e28a3b-1582-45b1-a27d-e3b21da44b45Wade VonbergenUnfortunately, the 28377-EP is the highest performance C2000 released to -55 to 125c. The 28335-EP is the highest performance EP device in the same pinout family. There is a TMS320C28346 that is similar and operates to 300Mhz. Unfortunately, it is not pinout compatible, and not released as an EP device with extended temperature. I think an expert in motor control needs to address the 28335 to 28377 software port and advantages possible with 2 cores. I suggest posting to the C2000 forum for motor expert input. I can help with this if needed. Regards, WadeTMS320C28346SM320F28335-EPhttps://e2e.ti.com/support/legacy_forums/hirel/f/space-high-reliability-forum-read-only/723083/sm320f28335-ep-need-something-with-higher-switching-frequency-for-sic/2667680Tue, 28 Aug 2018 22:11:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:6bfa12fe-b9c6-4f6d-9f59-3befc2b7b7d2David CAlmost all of our projects are currently running on a single core DSP. The 200Mhz will improve our current 150Mhz processor. The ideal candidate would be &gt; 200 Hz single core and backward compatible with 28335 or 2812. I&#39;m also not familiar with dual core processors. Are the software written for 28335 compatible with the 28377? Do we need to re-write the software to take advantage of dual processor? What is the purpose of dual processor? To control two motors? The question is how we benefit from dual core when we just need to control one motor? Aside from that, I noticed that the 176 pin 28377 is not compatible to 176 pin 28355.SM320F28335-EPhttps://e2e.ti.com/support/legacy_forums/hirel/f/space-high-reliability-forum-read-only/723081/am26lv32e-ep-can-i-run-this-at-24vpp-or-is-there-a-a-better-solution/2667568Tue, 28 Aug 2018 21:10:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:dcf081d6-5d56-4b7f-b7a3-89b2943b648dWade VonbergenThe AM26LS33AM33 is rated for mil temp. It is not plastic, only ceramic (CDIP, CFP or LCCC). I don&#39;t see any other options for direct replacement in EP. Regards, WadeAM26LV32E-EPhttps://e2e.ti.com/support/legacy_forums/hirel/f/space-high-reliability-forum-read-only/723083/sm320f28335-ep-need-something-with-higher-switching-frequency-for-sic/2667537Tue, 28 Aug 2018 20:50:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:cfa4b14d-b5f1-46fe-8acf-4a4ac190ce87Wade VonbergenDavid, not sure if this completely meets their needs, but we do have the TMS320F28377D-EP released. It is dual core 200Mhz. If there is another commercial device that meets needs, let us know and we can consider for roadmap release. If this answers your question, please click &quot;Verify it as the answer&quot; Regards, WadeSM320F28335-EPTMS320F28377D-EP