https://e2echina.ti.com/support/tools/sim-hw-system-design/zh-CNTelligent Community 13https://e2echina.ti.com/support/tools/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/1094410/ucc28600-ucc28600-vdd/3939654Tue, 15 Sep 2026 01:18:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:e152962e-b1ad-4118-85d6-517b097d12c0Daniel您好 不是 在上述测试条件下，测试得到的数据在这个范围里，供客户参考厘清在描述条件下相关参数应该在这个范围内。https://e2echina.ti.com/support/tools/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/1094410/ucc28600-ucc28600-vdd/3939112Mon, 14 Sep 2026 09:21:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:821eac63-23c2-49e4-b498-4c8d6bfd7249Daniel您好 已经收到了您的案例，调查需要些时间，感谢您的耐心等待https://e2echina.ti.com/support/tools/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/1094410/ucc28600-ucc28600-vddMon, 14 Sep 2026 08:49:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:ff5c7c12-1397-41b8-845a-1ab02f638d51zeyu xuePart Number: UCC28600 规格书中描述，Vdd起机电压是10.3V到15.3V，欠压电压是6.3V到9.3V，请问这里是列对应的吗，比如13.0V起机开始发波，欠压点是8V吗，目前我测试起机发波电压是12.8V，Vdd下降的最低点是9.4V，可以说离欠压点还有1.4V的余量吗，这里涉及到Vdd电容需要的并联数量，还是说起机发波的电压是13V，欠压点也有可能是9.3V呢，想确认下是否是列对应。谢谢。数据通信模块UCC28600https://e2echina.ti.com/support/tools/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/1094101/ucc28056-ucc28056/3939045Sun, 13 Sep 2026 22:46:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:6cfc13d8-c3e7-4e08-aacb-deefb7978a00Eirwen已经收到了您的案例，调查需要些时间，感谢您的耐心等待。https://e2echina.ti.com/support/tools/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/1094101/ucc28056-ucc28056Fri, 11 Sep 2026 10:22:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:88c3e39b-af0a-4466-9b4d-522e0d5f1d17Su HaozhouPart Number: UCC28056 各位工程师好， 请问一下UCC28056偶尔能延时启动一下，大部分时间都不能启动，有可能是什么原因？ 已经做过的排查： • 检查VCC退耦电容，确认容量、焊接无虚焊； • 核对GND引脚接法，控制器GND接到RCS电阻下端功率地，单点接地； • 检查ZCD/CS引脚分压电路、RCS采样电阻，器件参数与参考设计一致； • 检查启动回路，高压启动电阻无开路、阻值漂移； • 排除输出侧短路、负载故障。 感谢各位指点电器UCC28056https://e2echina.ti.com/support/tools/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/1093847/tpsm852892-tpsm852892-power-simulation-issue-consultation/3937877Thu, 10 Sep 2026 23:41:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:974f3314-341b-4ea3-a3d1-51018e79f0e4Daniel您好 因为这是新推出的IC没有相关的仿真模型推荐。 [quote userid="182832" url="~/support/tools/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/1093847/tpsm852892-tpsm852892-power-simulation-issue-consultation"]于是我准备下载Power Stage Designer 设计软件，想看看这里面是否有该型号设计仿真信息，但是下载被拒[/quote] 关于这个问题推荐您去客户支持中心获取相关帮助。 www.ti.com.cn/.../customer-support.htmlhttps://e2echina.ti.com/support/tools/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/1093847/tpsm852892-tpsm852892-power-simulation-issue-consultation/3937057Thu, 10 Sep 2026 09:35:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:e516c8e9-c8dc-4a73-a781-88cf8b917043Daniel您好 已经收到了您的案例，调查需要些时间，感谢您的耐心等待https://e2echina.ti.com/support/tools/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/1093847/tpsm852892-tpsm852892-power-simulation-issue-consultationThu, 10 Sep 2026 08:57:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:4e1a93c5-e5c5-48b5-9586-ca2d4918dd1fLei HanPart Number: TPSM852892 我们公司设计一张板卡采用了TPSM852892电源模组，需要对环路稳定新进行仿真。 首先我用 WEBENCH ® POWER DESIGNER 工具，没有找到该型号。 于是我准备下载Power Stage Designer 设计软件，想看看这里面是否有该型号设计仿真信息，但是下载被拒 希望TI能协助我解决我的问题。航天和国防TPSM852892https://e2echina.ti.com/support/tools/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/1093447/ucc28c54-ucc28c54/3937008Thu, 10 Sep 2026 01:32:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:84c0cf0a-0f1d-4654-a995-3c5529958224Vivian Gao您可以尝试减小RC常数。https://e2echina.ti.com/support/tools/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/1093447/ucc28c54-ucc28c54/3935608Tue, 08 Sep 2026 02:46:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:cd10f084-5e57-4e30-add3-00b7d182bcceVivian Gao感谢您关注TI产品。我们正在核实您的问题，请耐心等待我们的回复。https://e2echina.ti.com/support/tools/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/1093447/ucc28c54-ucc28c54Tue, 08 Sep 2026 02:09:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:2f0e09d2-888f-492d-b544-4d2dad524305li jiahuaPart Number: UCC28C54 反激电路，正常运行是DCM，短路时处于CCM状况，CCM的话他有初始电流，我的芯片对电流采样有RC滤波，他有初值我的RC无法兼顾DCM和CCM，就导致了短路时候保护变慢，这个有什么解决办法吗 。UCC28C54能源基础设施https://e2echina.ti.com/support/tools/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/1092568/pspice-for-ti-pspice-for-ti-request-to-reset-device-activation-limit/3934919Sun, 06 Sep 2026 23:48:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:08c87aa4-3f9b-45d5-be1a-1c42bae63493Eirwen您好， 对于所有安装错误/问题，请您到CADENCE支持中心获得支持 Customer Support Contacts | Cadencehttps://e2echina.ti.com/support/tools/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/1092568/pspice-for-ti-pspice-for-ti-request-to-reset-device-activation-limit/3934911Sun, 06 Sep 2026 23:31:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:d25135c5-f831-4bf3-91f8-50cef3c2e7f5EirwenHello, we have received your case and the investigation will take some time. Thank you for your patience.https://e2echina.ti.com/support/tools/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/1092568/pspice-for-ti-pspice-for-ti-request-to-reset-device-activation-limitFri, 04 Sep 2026 11:48:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:63632dd8-1fec-419e-9bbc-54fe4acad1cfxr kkefPart Number: PSPICE-FOR-TI Hello TI Support Team, I am using the free PSpice for TI software. I recently reinstalled my operating system, and now I cannot activate the software. It shows the error: "You have reached the concurrent device access limit." Since there is no "Deactivate" option inside the software, and I cannot register a Cadence support account (it requires a Host ID which I don't have), I am unable to resolve this myself. Could you please help me reset/clear the device activation records for my account on the backend? My Account Information: Registered Email: id1989@qq.com Thank you very much for your help!PSPICE-FOR-TIhttps://e2echina.ti.com/support/tools/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/1092274/pspice-for-ti-concurrent-device-access-limit-reached/3931283Thu, 03 Sep 2026 00:35:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:7b8e1631-1ec3-4989-9147-986e4403b15cVivian Gao您好， 对于所有安装错误/问题，请您到CADENCE支持中心获得支持 Customer Support Contacts | Cadencehttps://e2echina.ti.com/support/tools/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/1092274/pspice-for-ti-concurrent-device-access-limit-reached/3931281Thu, 03 Sep 2026 00:11:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:806cd7ba-49b0-45dd-807e-30bad0942d03FRANK1Thank you for contacting TI China E2E forum and choosing our products as part of your solution. Regarding your query, please give us some time to confirm this issue.https://e2echina.ti.com/support/tools/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/1092274/pspice-for-ti-concurrent-device-access-limit-reachedWed, 02 Sep 2026 23:43:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:119c4b58-9865-47d9-89a7-2594ef840ea5?? ?Part Number: PSPICE-FOR-TI Hi, I am trying authenticate a new conputer to use PSPICE for TI. I was told I have reached concurrent device access limit. Could you assist me remove all the autnenticated devices? Best, YiyangPSPICE-FOR-TIhttps://e2echina.ti.com/support/tools/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/1092198/tps2x7xx-schematic-checklist-tps2674x-q1/3931204Tue, 01 Sep 2026 04:13:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:8af1a461-0ce9-4ebc-bc81-2e56c3124200Alice您好， 请确认您的TI账号内信息是否已正确更新成功。 清除浏览器缓存后，执行一次log out + log in，再试着重新申请。 TPS2X7XX-SCHEMATIC-CHECKLIST Design tool | TI.com 如果仍无法申请，请联系 客户支持部门 检查您的TI账号。https://e2echina.ti.com/support/tools/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/1092198/tps2x7xx-schematic-checklist-tps2674x-q1/3931197Tue, 01 Sep 2026 02:44:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:82d41e70-07ed-4f9f-9616-e23dd271d041FRANK1感谢您对TI产品的关注！ 关于你的咨询，我们正在确认您的问题，感谢您的耐心等待。https://e2echina.ti.com/support/tools/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/1092198/tps2x7xx-schematic-checklist-tps2674x-q1Tue, 01 Sep 2026 01:59:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:39d032ae-6c54-4658-9cd3-8fa0d97a9537Yan LiPart Number: TPS2X7XX-SCHEMATIC-CHECKLIST 现需要申请TPS2674x-Q1工具，首次申请被拒后，更新个人资料中的公司后仍无法申请TPS2X7XX-SCHEMATIC-CHECKLIST