https://e2echina.ti.com/support/isolation/zh-CNTelligent Community 13https://e2echina.ti.com/support/isolation/f/isolation-forum/1073543/ucc28c44-ucc28c44/3868051Tue, 19 May 2026 04:55:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:5234e1be-d67f-4650-994b-a341d61aadafAlice您好， 请参考链接帖子内容，此参数对应 voltage mode 。 UCC28C44: Comp pin current source checking. - Power management forum - Power management - TI E2E support forumshttps://e2echina.ti.com/support/isolation/f/isolation-forum/1073571/iso1450-iso1450bdwr-d-1-8v-y-z-3-3v-y/3866313Fri, 15 May 2026 07:03:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:750978ad-7e46-4bc6-8c6a-3cf2d2d6e237Eric Ba您可以参考1410的开发板。 Isolated RS-485 Half-Duplex Evaluation Modulehttps://e2echina.ti.com/support/isolation/f/isolation-forum/1073571/iso1450-iso1450bdwr-d-1-8v-y-z-3-3v-y/3865924Fri, 15 May 2026 03:49:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:3f0d0c04-4824-49cc-b286-3bcab19f9a8a星瑞天辰你好，若使用半双工模式，应如何进行配置连接？有参考图纸？谢谢https://e2echina.ti.com/support/isolation/f/isolation-forum/1073571/iso1450-iso1450bdwr-d-1-8v-y-z-3-3v-y/3865357Thu, 14 May 2026 02:19:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:4ae6b4d5-24c7-4ec6-90d0-985e0b266e6dEric Ba您好， 根据您的描述，您使用的是 ISO1450BDWR，对应的是半双工的应用，请参见手册Figure 6-2. DW Package 16-Pin SOIC Half-Duplex Device Top View对应的Pin fuction. 您原理图中使用的是全双工的引脚功能图，请更正后再测试。 https://www.ti.com/lit/ds/symlink/iso1450.pdf#page=4https://e2echina.ti.com/support/isolation/f/isolation-forum/1073571/iso1450-iso1450bdwr-d-1-8v-y-z-3-3v-y/3865346Wed, 13 May 2026 23:14:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:079a2c33-1ead-4512-bd75-085e87b8fc70FRANK1感谢您对TI产品的关注！ 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/isolation/f/isolation-forum/1073571/iso1450-iso1450bdwr-d-1-8v-y-z-3-3v-yWed, 13 May 2026 12:58:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:2eec6ab8-0ee8-482b-8392-2a5f81d8242b星瑞天辰Part Number: ISO1450 你好，当我使用ISO1450BDWR 给D发送一共电平为1.8V的逻辑电平时差分出来的Y信号电平未出现明显变化，在示波器上仅能看到400mV的微小电平一闪而过，Z电平能正常变为3.3V 。Y的信号发生故障 ，故障图像如上图所显示。当更换芯片为ISO1452BDWR 则，能看见 Y 和Z 的电平都能正常跳变成3.3V。我取消了R110 R94 R119 和ESD也是同样的故障。请问是器件使用方法不对？数据通信模块ISO1450https://e2echina.ti.com/support/isolation/f/isolation-forum/1073543/ucc28c44-ucc28c44/3865306Wed, 13 May 2026 08:37:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:bb0f5cd9-c4b6-4bca-b281-f38add941ef8YANNI CAI目前按照规格书输出拉电流的这个条件测试，实际测试到的电流为灌电流，详细数据可以参考这个报告。这个结果与规格书描述不符，帮忙确认一下！https://e2echina.ti.com/support/isolation/f/isolation-forum/1073543/ucc28c44-ucc28c44/3865281Wed, 13 May 2026 04:10:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:7473dc76-bffa-4497-95da-29b5350f6c4cAlice您好， 此芯片确实有PCN（ PCN20221216002.1) 更改，因此当前版本的数据手册 COMP输出高电平(VOH)的最低电压VREF-0.2V。https://e2echina.ti.com/support/isolation/f/isolation-forum/1073543/ucc28c44-ucc28c44Wed, 13 May 2026 03:21:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:f2de7b75-51d3-4526-9737-5b48a66dd19cYANNI CAIPart Number: UCC28C44 UCC28C44这个型号 我们在二次筛选的过程中 旧资料VOH下限是5V，典型值是6.8V，VCOMP给5V是可以测拉电流的，新资料VOH下限是VREF-0.2V，大概是4.8V，测试结果一直不对。请给与技术支持，谢谢！UCC28C44https://e2echina.ti.com/support/isolation/f/isolation-forum/1071250/ucc33410-ucc33410-iec60747-17/3856792Thu, 30 Apr 2026 03:22:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:62bd05a7-cce6-4130-96d4-03f3399de40eLydia您好， 通过此链接 www.ti.com.cn/.../customer-support.html ，选择截图中显示的某个渠道，点击进去说明是证书问题，会有对应的客服帮助您，https://e2echina.ti.com/support/isolation/f/isolation-forum/1071250/ucc33410-ucc33410-iec60747-17/3856791Thu, 30 Apr 2026 03:19:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:83e3a6f5-8ce6-4574-9734-fcdbe38666ebzi wang没有找到质量部门的入口https://e2echina.ti.com/support/isolation/f/isolation-forum/1071250/ucc33410-ucc33410-iec60747-17/3856786Thu, 30 Apr 2026 02:59:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:b1580545-6c1c-4e9c-84b9-cb65ecf1e6b4Lydia您好， 关于认证相关信息请联系客户支持中心质量部门，会有客服帮助您： www.ti.com.cn/.../customer-support.html 符合IEC60747-17的认证的DC/DC电源模块您可以看看这个产品，技术文档里面有证书， www.ti.com/.../UCC15241-Q1https://e2echina.ti.com/support/isolation/f/isolation-forum/1071250/ucc33410-ucc33410-iec60747-17Thu, 30 Apr 2026 02:51:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:03aae09c-862c-450c-81fc-03e98000e15dzi wangPart Number: UCC33410 1.UCC33410的规格书上标注，计划过IEC60747-17 (VDE 0884-17)的认证。这个认证处于 什么状态?是否已经通过? Planned Safety-related certifications: Basic isolation per DIN EN IEC 60747-17 (VDE0884-17) 2.TI是否有其他功能类似的DCDC隔离电源通过了IEC60747-17 (VDE 0884-17)的认证推 荐?UCC33410https://e2echina.ti.com/support/isolation/f/isolation-forum/1070278/iso1410-iso1410dwr/3854454Sun, 26 Apr 2026 23:45:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:86b6941f-76b1-43f7-b2c0-5388855ef655Daniel您好 https://www.ti.com/lit/an/slla453a/slla453a.pdf?ts=1777246949181&ref_url=https%253A%252F%252Fwww.ti.com.cn%252Fproduct%252Fcn%252FISO1410 https://www.ti.com.cn/tool/cn/TIDA-010253 请您参考以上相关官方文档针对性说明。https://e2echina.ti.com/support/isolation/f/isolation-forum/1070278/iso1410-iso1410dwr/3854446Sun, 26 Apr 2026 23:24:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:87d82a33-29d3-495f-b8a4-75f6cff8b87cLydiaHello, we have received your case and the investigation will take some time. Thank you for your patience.https://e2echina.ti.com/support/isolation/f/isolation-forum/1070278/iso1410-iso1410dwrFri, 24 Apr 2026 12:11:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:dd794245-01e0-4f76-8833-5d538caa1a25peter zhouPart Number: ISO1410 For ISO1410DWR A and B pin，which signa si RS485 bus Positive signal, negative signal，any documents introduce about this？TIDA-010253工业自动化ISO1410https://e2echina.ti.com/support/isolation/f/isolation-forum/1069321/sn74lvc1t45-sn74lvc1t45/3850097Tue, 21 Apr 2026 03:41:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:ef620a52-4de6-4487-a337-3cc4b87a1f53Alice您好， 请参考 [FAQ] What happens when I connect a logic device's output to a 50 ohm transmission line? - Logic forum - Logic - TI E2E support forums 串接匹配电阻。https://e2echina.ti.com/support/isolation/f/isolation-forum/1069321/sn74lvc1t45-sn74lvc1t45/3849664Mon, 20 Apr 2026 09:53:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:d5b09da5-f520-437d-8891-ae72de55ce1fAlice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/isolation/f/isolation-forum/1069321/sn74lvc1t45-sn74lvc1t45Mon, 20 Apr 2026 09:18:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:d1b1682a-b271-4b52-b081-59c77b30eb22he hePart Number: SN74LVC1T45 芯片的输出口上升下降沿出现振铃SN74LVC1T45汽车中的 48Vhttps://e2echina.ti.com/support/isolation/f/isolation-forum/1064392/lm5155-on-the-making-of-transformers/3833181Tue, 24 Mar 2026 06:19:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:7faffed6-f4ad-4cf1-8b1d-e544c7807caeAliceHello , Please refer How to Design an Isolated Flyback Using LM5155 (Rev. A) "3.2 Transformer Selection" chapter.