隔离论坛 - 最近的话题

UCC33410: UCC33410的IEC60747-17的认证

zi wang — Thu, 30 Apr 2026 02:51:33 GMT

Part 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?

RE: UCC33410: UCC33410的IEC60747-17的认证

Lydia — Thu, 30 Apr 2026 03:22:36 GMT

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，

RE: UCC33410: UCC33410的IEC60747-17的认证

zi wang — Thu, 30 Apr 2026 03:19:29 GMT

没有找到质量部门的入口

RE: UCC33410: UCC33410的IEC60747-17的认证

Lydia — Thu, 30 Apr 2026 02:59:39 GMT

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-Q1

ISO1410: ISO1410DWR

peter zhou — Fri, 24 Apr 2026 12:11:45 GMT

Part Number: ISO1410

For ISO1410DWR A and B pin，which signa si RS485 bus Positive signal, negative signal，any documents introduce about this？

RE: ISO1410: ISO1410DWR

Daniel — Sun, 26 Apr 2026 23:45:01 GMT

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。

RE: ISO1410: ISO1410DWR

Lydia — Sun, 26 Apr 2026 23:24:04 GMT

Hello, we have received your case and the investigation will take some time. Thank you for your patience.

SN74LVC1T45: SN74LVC1T45芯片的输出口上升下降沿出现振铃

he he — Mon, 20 Apr 2026 09:18:20 GMT

Part Number: SN74LVC1T45

芯片的输出口上升下降沿出现振铃

RE: SN74LVC1T45: SN74LVC1T45芯片的输出口上升下降沿出现振铃

Alice — Tue, 21 Apr 2026 03:41:25 GMT

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。

RE: SN74LVC1T45: SN74LVC1T45芯片的输出口上升下降沿出现振铃

Alice — Mon, 20 Apr 2026 09:53:06 GMT

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。

RE: LM5155: On the Making of Transformers

Alice — Tue, 24 Mar 2026 06:19:58 GMT

Hello ,

Please refer How to Design an Isolated Flyback Using LM5155 (Rev. A) "3.2 Transformer Selection" chapter.

LM5155: On the Making of Transformers

wang liu — Mon, 23 Mar 2026 06:50:39 GMT

Part Number: LM5155

HI,

I'm using the LM5155 to design a circuit with a 5V input and a 12V 3A output. However, I have no idea how to design the transformer. Here is my schematic diagram. Could you provide the winding number so that I can also apply for a custom transformer? I hope it can help me solve the problem.

Thanks in advance

kind regards

liu

RE: LM5155: On the Making of Transformers

wang liu — Tue, 24 Mar 2026 00:45:34 GMT

Looking forward to hearing from you soon.

RE: LM5155: On the Making of Transformers

Alice — Mon, 23 Mar 2026 08:07:11 GMT

Hello,
We have received your post and the investigation will take some time.
Thanks for your patience.

RE: ISO1044: 信号通过ISO1044后CAN总线错误无法使用

Lydia — Tue, 17 Mar 2026 00:10:33 GMT

您好，鉴于长时间没有收到回复，我们将关闭此案例，如有新问题请重新提交案例，谢谢。

ISO1044: 信号通过ISO1044后CAN总线错误无法使用

dang HU — Fri, 06 Mar 2026 03:11:57 GMT

Part Number: ISO1044

信号通过ISO1044后CAN总线错误无法使用

RE: ISO1044: 信号通过ISO1044后CAN总线错误无法使用

Lydia — Fri, 06 Mar 2026 04:28:29 GMT

你好，您能提供更多信息以方便我们帮助您分析吗？

RE: ISO1044: 信号通过ISO1044后CAN总线错误无法使用

Lydia — Fri, 06 Mar 2026 03:42:11 GMT

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。

ISO3082: ISO3082 终端电阻放置的位置问题

yunfei chen — Sat, 28 Feb 2026 07:58:40 GMT

Part Number: ISO3082

如下面两张图，当120欧姆终端电阻放置在IC端时，接收到的RS485数据正常。当120欧姆终端电阻放置在输出端时，接收到的RS485数据不正常，数据长度少且乱码。

请问从芯片使用上来说，120欧姆终端电阻应该放置在哪个位置？若应该放置在输出端，我的原理图设计存在什么问题？要怎么修改？

RE: ISO3082: ISO3082 终端电阻放置的位置问题

Eirwen — Wed, 04 Mar 2026 00:35:48 GMT

Thank you for reaching out. The 120-ohm terminating resistor should be placed at the IC end close to the AB pins. This helps to reduce reflections on the A/B bus and should solve the issue you are seeing.

RE: ISO3082: ISO3082 终端电阻放置的位置问题

Eirwen — Sat, 28 Feb 2026 10:48:18 GMT

已经收到了您的案例，调查需要些时间，感谢您的耐心等待。

ISOW7741: ISOW7741 as a power source

CC CHU — Fri, 23 Jan 2026 23:48:57 GMT

Part Number: ISOW7741

Hello,teams

Does ISOW7741 supply power to another ISO7740? Is it feasible?

RE: ISOW7741: ISOW7741 as a power source

Alice — Mon, 26 Jan 2026 01:59:40 GMT

您好，

可以。请注意ISOOUT的输出电流能力（芯片数据手册Figure 7-3）。

RE: ISOW7741: ISOW7741 as a power source

Lydia — Sun, 25 Jan 2026 23:39:21 GMT

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。

RE: ISOW7741: ISOW7741 as a power source

CC CHU — Fri, 23 Jan 2026 23:53:56 GMT