https://e2echina.ti.com/support/switches-multiplexers/zh-CNTelligent Community 13https://e2echina.ti.com/support/switches-multiplexers/f/switches-multiplexers-forum/1075834/ts5a22364-q1-latch-up-current-vs-on-state-switch-peak-current/3876273Mon, 01 Jun 2026 06:55:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:9420a5f5-7de8-4073-b2ab-1468cf097066AliceHello, Latch-up current should follow the continuous current, not peak current. The chip should not work beyond the condition listed in " 6.1 Absolute Maximum Ratings" in datasheet.https://e2echina.ti.com/support/switches-multiplexers/f/switches-multiplexers-forum/1076366/sn74cbtlv3126-sn74cbtlv3126pwr-sn74lvc1g32dckr/3875069Fri, 29 May 2026 04:08:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:c82d1e47-093e-4aaa-beef-efab2f8622faEirwen不同芯片数据表这个地方不一定完全一致，具体参数请参考数据表最后几页的封装尺寸图（也就是您上传的右边这两个图）。https://e2echina.ti.com/support/switches-multiplexers/f/switches-multiplexers-forum/1075582/tmuxhs4412-tmuxhs4412-internal-esd-diode-interference-on-ate-open-short-test---risk-of-false-pass/3875063Fri, 29 May 2026 02:59:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:e2df5974-f804-4441-abaf-e02b153829ecbin zhang162. 只有当多路复用器断电时才会出现问题。只要多路复用器通电，就不会有单独的电流通路。 reply,测试open short场景，DUT断电，即使多路复用器通电，机台sink -200uA电流，是否也会受到 TMUXHS4412 ESD diode的影响？ 3. 交流耦合可能是这里最好的解决方案。 reply,mipi lpbk测试要求DC 耦合，需要高速复用器，设计目的通过复用器切换DB0P/N 到tester测试DC再通过DB0P/N 环回到DUT RX， 图片没有画全。https://e2echina.ti.com/support/switches-multiplexers/f/switches-multiplexers-forum/1076366/sn74cbtlv3126-sn74cbtlv3126pwr-sn74lvc1g32dckr/3875050Fri, 29 May 2026 02:24:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:557aec2e-f5f9-4907-bf3b-2b7433ee35e0Eirwen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/switches-multiplexers/f/switches-multiplexers-forum/1076366/sn74cbtlv3126-sn74cbtlv3126pwr-sn74lvc1g32dckrFri, 29 May 2026 02:20:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:343c45e4-0004-4e35-88f0-36378ecc11e0xiangchao hanPart Number: SN74CBTLV3126 SN74CBTLV3126PWR ： PACKAGE SIZE （ 5.00mm × 4.40mm ）中的 4.4mm 指的是 不带 pin 脚的尺寸 SN74LVC1G32DCKR ： BODY SIZE （ 2.00mm × 2.10 mm ）中的 2.1mm 指的是 带 pin 脚的尺寸 请问下这个是怎么看的？ 什么时候是带 pin 脚的尺寸？什么时候是不带 pin 脚的尺寸？谢谢！SN74CBTLV3126https://e2echina.ti.com/support/switches-multiplexers/f/switches-multiplexers-forum/1075582/tmuxhs4412-tmuxhs4412-internal-esd-diode-interference-on-ate-open-short-test---risk-of-false-pass/3874896Thu, 28 May 2026 22:12:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:ec05e6e8-0e6d-4fc5-8f3a-7a4ddaa0e6b0Katy West你好， 1. 是的，I/O 和 GND 之间应该有二极管。 2. 只有当多路复用器断电时才会出现问题。只要多路复用器通电，就不会有单独的电流通路。 3. 交流耦合可能是这里最好的解决方案。是否存在多路复用器两端的电压或电流会超出绝对最大值的情况？或者说，交流耦合只是为了安全起见？ 一般来说，我会建议在ATE DUT测试中使用高压多路复用器，例如我们的 72xx 系列，尤其是在信号为直流的情况下。您选择高速多路复用器而不是普通模拟多路复用器的原因是什么？ 最好的， 凯蒂ECTEhttps://e2echina.ti.com/support/switches-multiplexers/f/switches-multiplexers-forum/1075834/ts5a22364-q1-latch-up-current-vs-on-state-switch-peak-current/3873027Wed, 27 May 2026 09:04:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:bee2f749-256b-4463-bc87-855b8770b44fVivian GaoThank you for your attention to TI products. We are verifying your issue, please wait for our reply.https://e2echina.ti.com/support/switches-multiplexers/f/switches-multiplexers-forum/1075834/ts5a22364-q1-latch-up-current-vs-on-state-switch-peak-currentWed, 27 May 2026 08:53:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:b7876b06-2af0-4ece-9949-75932548bac4Health_LiuPart Number: TS5A22364-Q1 Latch-up performance meets 100 mA per AEC Q100-004. On-state switch peak current ±300mA. May I ask if in the LU test, the IO is capable of conducting a current of 300mA? And in the LU test, do the other pins carry a current of 100mA?TS5A22364-Q1https://e2echina.ti.com/support/switches-multiplexers/f/switches-multiplexers-forum/1075582/tmuxhs4412-tmuxhs4412-internal-esd-diode-interference-on-ate-open-short-test---risk-of-false-pass/3872222Tue, 26 May 2026 03:17:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:aa0f81a5-7137-4e15-a741-17c5d39c043eVivian GaoThank you for your attention to TI products. We are verifying your issue, please wait for our reply.https://e2echina.ti.com/support/switches-multiplexers/f/switches-multiplexers-forum/1075582/tmuxhs4412-tmuxhs4412-internal-esd-diode-interference-on-ate-open-short-test---risk-of-false-passTue, 26 May 2026 02:59:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:1eefc16f-d04f-42cb-a945-17e24aded597bin zhang16Part Number: TMUXHS4412 We are using TMUXHS4412 in an ATE loopback test for MIPI interfaces. The configuration is: ATE Tester ↔ TMUXHS4412 ↔ DUT . We have a critical concern regarding the open-short (OS) / continuity test. Background & Concern: Our analysis suggests that the TMUXHS4412 has internal ESD diodes on its high-speed differential I/O pins. While these are vital for device protection, we are concerned they will create a parallel current path that directly corrupts our DUT's OS test measurement. The Core Problem (False PASS Risk): The OS test works by injecting a small DC test current (e.g., 0.2 mA) to forward-bias the DUT's internal ESD protection diode and measure the resulting voltage drop (e.g., ~0.6 V). If the DUT's own ESD diode is open-circuited (a fail condition), the current would normally have no path, resulting in a voltage measurement near 0V and a correct FAIL verdict. However, with the TMUXHS4412 in the path, we fear the ATE current will be shunted through the TMUXHS4412's internal diode . Consequently, the ATE would still measure a normal forward voltage drop, incorrectly reporting the DUT as PASS (a false PASS) even though its ESD diode is faulty. Request for Clarification: Could you please confirm the exact ESD protection structure on the high-speed I/O pins (e.g., is there a diode from I/O to GND)? In a scenario where the DUT's internal diode is open, could the TMUXHS4412's own ESD structure create this misleading current path, leading to a false PASS on the ATE OS test? Is AC-coupling the only reliable solution to isolate this DC path, and if we apply it, what is the correct biasing scheme for the TMUXHS4412 to ensure it stays within its valid operating conditions (CMV 0V to 1.8V)? We look forward to your guidance on this critical issue.TMUXHS4412https://e2echina.ti.com/support/switches-multiplexers/f/switches-multiplexers-forum/1073983/txs0102-about-txs0102dcur-design-and-manual-interpretation/3867945Mon, 18 May 2026 06:16:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:e5cab8c0-27d1-48e1-9533-0d6f7f3e2e00Vivian GaoThe datasheet has Figure 6-5. showing the meaning of time. The Product Overview below states that this chip supports 400kHz www.ti.com.cn/.../scea116.pdfhttps://e2echina.ti.com/support/switches-multiplexers/f/switches-multiplexers-forum/1073616/ts3a27518e-q1-ts3a27518e-3/3867943Mon, 18 May 2026 05:01:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:82b3ad9c-33ba-400a-a435-c8ed2ad740fdAlice您好， TS3A27518E典型带宽是240MHZ. 请参考链接文档 Designing with Multiple Multiplexers in Series: A Guide to Cascading Multiplexers 的“Figure 2-9”， 理论上两个芯片串联，带宽几乎减半，而三个芯片串联带宽降低的影响就没那么大。 您可以参考文档实际仿真一下。https://e2echina.ti.com/support/switches-multiplexers/f/switches-multiplexers-forum/1073983/txs0102-about-txs0102dcur-design-and-manual-interpretation/3866605Fri, 15 May 2026 10:08:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:e1f40dac-4d7a-4800-be75-3eaa93b948aeVivian GaoThank you for your attention to TI products. We are verifying your issue, please wait for our reply.https://e2echina.ti.com/support/switches-multiplexers/f/switches-multiplexers-forum/1073983/txs0102-about-txs0102dcur-design-and-manual-interpretationFri, 15 May 2026 10:02:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:17b315dc-776c-47fd-94d8-44ca2ee2f169xie liyangPart Number: TXS0102 hi，everyone， I plan to use TXS0102DCUR to perform level conversion on the I2C signal with a rate of 400K, where VCCA is 1.8V and VCCB is 3.3V. According to the datasheet, the maximum propagation delay could reach 208ns. Considering that the data setup time requirement in the I2C standard is no less than 100ns, I am concerned that using TXS0102DCUR for level conversion might cause the I2C timing to fail to meet the requirements under certain extreme conditions. Could you please help analyze whether the TXS0102DCUR is suitable for the current usage scenario? Thank you.TXS0102https://e2echina.ti.com/support/switches-multiplexers/f/switches-multiplexers-forum/1073616/ts3a27518e-q1-ts3a27518e-3/3865413Thu, 14 May 2026 22:44:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:03b1bf99-1a4c-464e-99c6-6a89be9b7cd6FRANK1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/switches-multiplexers/f/switches-multiplexers-forum/1073616/ts3a27518e-q1-ts3a27518e-3Thu, 14 May 2026 13:01:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:417c7651-c737-4add-aaef-d9e9a0a44adfxu YingPart Number: TS3A27518E-Q1 Other Parts Discussed in Thread: TS3A27518E 你好： 我现在使用TS3A27518E扩展SPI接口，由于需要支持3个FLASH芯片，要使用3个TS3A27518E进行串联，具体信号拓扑见附件。关于这种3个TS3A27518E串联的方式，有两个问题： （1）从DEVICE_A或者DEVICE_B到FLASH1通路的带宽是多少？ （2）从DEVICE_A或者DEVICE_B到FLASH2/FLASH3通路的带宽是多少？信息娱乐和仪表组TS3A27518E-Q1TS3A27518Ehttps://e2echina.ti.com/support/switches-multiplexers/f/switches-multiplexers-forum/1072404/ts3usb221-ts3usb211/3861401Sat, 09 May 2026 01:31:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:6644f66c-b15c-4642-b90c-0bf17507d358NOARH HOWARD十分感谢，目前已选好了https://e2echina.ti.com/support/switches-multiplexers/f/switches-multiplexers-forum/1072404/ts3usb221-ts3usb211/3861329Fri, 08 May 2026 03:48:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:bb05f56e-8f8a-4359-9233-a8fcc0a6586eLydia您好， 您指的是尾缀带.A,.B和G4的产品的区别是吧， 关于尾缀带.A和.B的产品，可以参考此链接， https://www.ti.com.cn/zh-cn/ordering-resources/import-details.html 关于尾缀带G4的产品，您可以参考此FAQ, e2e.ti.com/.../faq-what-does-the-g3-g4-e4-suffix-mean-on-ti-analog-switches-multiplexershttps://e2echina.ti.com/support/switches-multiplexers/f/switches-multiplexers-forum/1072404/ts3usb221-ts3usb211/3861327Fri, 08 May 2026 03:39:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:1bd08150-580e-45ac-85e5-d893a79fe695Lydia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/switches-multiplexers/f/switches-multiplexers-forum/1072404/ts3usb221-ts3usb211Fri, 08 May 2026 03:38:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:35a08c20-6cdf-4e2c-8c90-322aa96779daNOARH HOWARDPart Number: TS3USB221 使用QFN封装，工作温度-40～85℃，还是有很多型号，有什么特殊差异点TS3USB221