https://e2e.ti.com/support/isolation-group/isolation/<p style="display:none;">blank</p>en-USTelligent Community 13https://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/1680263/iso7741u-iso7741u-mass-production-start-date/6476956Tue, 08 Sep 2026 23:18:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:30893897-ad43-4aad-ab4a-aabe62a53e02RIE KAIHARAHi Aaditya Thank you for your reply. I understand the situation and appreciate the information regarding the ISO7741U. Regards, RIE KAIHARAhttps://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/1680263/iso7741u-iso7741u-mass-production-start-date/6476930Tue, 08 Sep 2026 22:44:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:b6635332-7db7-4b98-a8a7-1c14f674a556Aaditya V.Hi Rie, Thanks for reaching out. We cannot disclose exactly when the ISO7741U will be released to market. However, the ISO7741U is shown as a preview product on our website and typically means that the device will be ready for released soon. Regards, Aadityahttps://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/1678857/iso6421-what-is-the-minimum-and-maximum-range-of-package-height/6476918Tue, 08 Sep 2026 22:35:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:7afac3de-001d-4275-ab31-47779103b7e1Aaditya V.Hi Chao, Thanks for following up. i understand the urgency for the customer. I have pushed again to the packaging team and will respond with information as soon as they reply. Regards, Aadityahttps://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/1680528/isos141-sep-isos141-sep-tid-characterization-at-application-bias-beyond-30-krad-si-and-lead-time-for-50-pcsTue, 08 Sep 2026 21:50:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:1c6f1c95-2b43-4fa1-9edc-79ef6febd516Alex SherrickPart Number: ISOS141-SEP Please handle this as a private support request rather than a public E2E post; it concerns a space program under development. We are using ISOS141-SEP as the gate-drive isolation barrier in a 120 V spacecraft power controller. We already have SLLSFN1A, SLVK067 and SLVK069A. Two questions: 1. Do you have characterization data or a statement for operation beyond 30 krad(Si), ideally to 36 krad(Si) or more, with the device biased during irradiation at a +5 V / +12 V application bias? 2. Indicative lead time for 50 pieces of ISOS141FDBQSEP. TI.com currently shows it out of stock. Thank you, Alex Sherrick Sherit Labs LLC alex@sheritlabs.comISOS141-SEPhttps://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/1680148/iso6720-q1-input-voltage-between-vil-and-vih-is-the-output-behavior-expected/6476509Tue, 08 Sep 2026 18:07:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:96768f33-4b35-4cf5-ac10-08020e03f353Aaditya V.Hi YuFang, Thanks for reaching out. [quote userid=&quot;585250&quot; url=&quot;~/support/isolation-group/isolation/f/isolation-forum/1680148/iso6720-q1-input-voltage-between-vil-and-vih-is-the-output-behavior-expected&quot;] All input signals are set to 2.5V, but the simulation results show that all outputs are approximately 4.99V. whether this simulation result is expected? [/quote] Yes, it is expected. Both sides of the isolator are completely independent. This means that the output signal will reference the output side supply voltage. For example, if the input side supply is set to 2.5V with a 2.5V input signal, while output side supply is 5V, the output signal will also be 5V regardless of input signal. In your application, it seems that the VCC1 is 5V, input signal is 2.5V, VCC2 is 5V, and output signal is 5V. Since the VCC2 (output side supply voltage) is 5V, the output signal will also be 5V. We suggest keeping the input side supply and the input signal voltages the same to ensure a valid output. [quote userid=&quot;585250&quot; url=&quot;~/support/isolation-group/isolation/f/isolation-forum/1680148/iso6720-q1-input-voltage-between-vil-and-vih-is-the-output-behavior-expected&quot;] If the input voltage is between these two thresholds (for example: 2.5V), is device expected to operate normally? Or is the behavior undefined in the voltage? [/quote] If the input signal is between the ranges of VIL and VIH, the output signal is undefined. The thresholds mentioned in the datasheet guarantee a valid output threshold that the voltage needs to be in for a determined state. If the voltage is above VIL but below VIH, then the output will be undetermined since there is not a guarantee on what the output state will be. So keeping the input signal and supply voltage the same will allow for these thresholds to guarantee a valid output state. Regards, Aadityahttps://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/1680399/sn6501-sn6501-output-voltage-not-comingTue, 08 Sep 2026 12:40:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:d09abad0-8a89-44ab-85db-d7fea49aa9f6Bharat SujananiPart Number: SN6501 i have made RS485 isolated repeater using application note Dual Isolated Half-Duplex RS-485 Repeater TIDU590-September 2014 . And my Device input voltages are 24VDC and generating 5v using Recom R78 series. Currently 5V is coming at the input of SN6501 but not getting any voltages in output, So please check and suggest.Industrial AutomationSN6501https://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/1680263/iso7741u-iso7741u-mass-production-start-dateTue, 08 Sep 2026 08:34:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:ae085cd3-d04d-4919-aefd-222efea7df9cRIE KAIHARAPart Number: ISO7741U What is the mass production start date of the ISO7741U?ISO7741Uhttps://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/1679862/isow1412-isow1412-radiated-emissions-with-two-devices-used-as-an-rs-485-repeater/6475695Tue, 08 Sep 2026 08:20:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:17f9f96c-aaa7-4d7c-95aa-2b781bd29b0dVarun KumarHi Rudolf, Thanks for reaching out and providing detailed inputs. First a few feedback looking at the Schematic and PCB layout: The Schematic connection for ISOW1412 looks good over all with one miss - there should be a FB on GND1/GNDIO net as well before connecting to a larger PCB plane. On the PCB layout - I do see a minor violation of KOZ with respect to ferrite beads L5 and L7. The KOZ could have been better here by cutting the copper near to the FB is rectangular shape rather than the current shape (highlighted in yellow below) This shorter distance (yellow arrow) can possibly increase the noise coupling from the inside pad of FB to the wider plane. This is one feedback which I wanted to highlight. However, in order to understand the emissions result better, we need some further clarity to assist you better: Can you please share the Class B emissions result for us to review? Is there any external RS485 cable dependency on the emissions result which is connected to PCB at KL1/2? Is yes then can you please elaborate on that in detail? - As many details possible will be good on this aspect. What is length of the cable used? Even a physical test setup will go a long way in understanding the setup better. Regards Varunhttps://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/1680148/iso6720-q1-input-voltage-between-vil-and-vih-is-the-output-behavior-expectedTue, 08 Sep 2026 03:18:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:2b08f414-4ec4-4474-9d3e-4da5519d7e0fYUFANG CHENPart Number: ISO6720-Q1 Hello, My simulation setup is as shown below. All input signals are set to 2.5V, but the simulation results show that all outputs are approximately 4.99V. whether this simulation result is expected? According to the datasheet, an input voltage above 3.5V (5V*0.7) is recognized as HIGH, while an input voltage below 1.5V (5V*0.3) is recognized as LOW. If the input voltage is between these two thresholds (for example: 2.5V), is device expected to operate normally? Or is the behavior undefined in the voltage? Thank you for your help. Best Regard, YuFang ChenISO6720-Q1https://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/1678857/iso6421-what-is-the-minimum-and-maximum-range-of-package-height/6475372Tue, 08 Sep 2026 02:24:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:71c202a1-01cf-404f-9e98-925c846c04acChao Fu ChenHi Aaditya, we need to that range because the datasheet only show the max is 2.8. May I have like CPK data for that height of value or please check with package team to feedback more detail. Because this is for AWS project and urgent for Delta RD if we could not prove that it will change to novosensehttps://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/1679393/iso6542-confirmation-of-iso6542dbqr-selection-for-uart-digital-isolation/6475053Mon, 07 Sep 2026 13:49:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:fc544013-e49a-482f-a7db-a7c3e89003b0Varun KumarHi Chetan, Clsoing this thread as the response seems to have resolved your query. Regards Varunhttps://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/1679809/iso7742-iso7742-for-isolating-bidirectional-swd-swclk-swdio-is-this-configuration-correct-and-is-a-reference-schematic-available/6474974Mon, 07 Sep 2026 12:07:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:dfdfb49c-ed7b-4336-82c5-962053dcad54Varun KumarHi David, Thanks for reaching out. September 7, Monday is a US National Holiday. We&#39;ll review your inputs and revert back by September 9. Regards Varunhttps://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/1679393/iso6542-confirmation-of-iso6542dbqr-selection-for-uart-digital-isolation/6474962Mon, 07 Sep 2026 11:43:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:9f6df508-739c-43a9-909e-04e5dc1cbfc7Chetan Bidap1Hi Aaditya , thanks for responsehttps://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/1679393/iso6542-confirmation-of-iso6542dbqr-selection-for-uart-digital-isolation/6474776Mon, 07 Sep 2026 08:40:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:f4bd20d3-1cca-4e07-856b-7c0bbc08aff1Aaditya V.Hello, Thanks for reaching out. [quote userid=&quot;478631&quot; url=&quot;~/support/isolation-group/isolation/f/isolation-forum/1679393/iso6542-confirmation-of-iso6542dbqr-selection-for-uart-digital-isolation&quot;]I am planning to use the ISO6542DBQR digital isolator for UART communication at a data rate of up to 2 Mbps . Could you please confirm whether this is the appropriate part number for my application and whether it supports reliable UART communication at this data rate?[/quote] Yes, the ISO6542 supports data rates up to 50 Mbps, so 2 Mbps UART communication is well within its capability. The device also supports the required forward and reverse channels for UART TX/RX communication. [quote userid=&quot;478631&quot; url=&quot;~/support/isolation-group/isolation/f/isolation-forum/1679393/iso6542-confirmation-of-iso6542dbqr-selection-for-uart-digital-isolation&quot;] In my design, the UART signals from the MCU operate at 3.3 V and are connected to one side of the ISO6542. On the isolated side, I am planning to use a 5 V supply for the interface circuit. Could you please confirm whether the ISO6542 can operate correctly with 3.3 V on one side and 5 V on the other side , and whether this configuration is suitable for UART communication at up to 2 Mbps? [/quote] Yes, VCC1 and VCC2 can operate independently, with a supply range of 2.5 V to 5.5 V on each side. Therefore, using 3.3 V on the MCU side and 5 V on the isolated side is a supported configuration. Please see this FAQ: [FAQ] Can I power the two sides of a digital isolator with different voltages? [quote userid=&quot;478631&quot; url=&quot;~/support/isolation-group/isolation/f/isolation-forum/1679393/iso6542-confirmation-of-iso6542dbqr-selection-for-uart-digital-isolation&quot;]Additionally, please review the attached connection and let me know if there are any recommended changes to the power supply, signal connections, or external components to ensure reliable operation.[/quote] Everything in the schematic looks good. Please make sure to keep the 0.1uF capacitor no more than 2mm away from the VCC pin on the PCB layout. Regards, Aadityahttps://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/1679862/isow1412-isow1412-radiated-emissions-with-two-devices-used-as-an-rs-485-repeaterMon, 07 Sep 2026 08:05:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:5123732c-1484-4c84-a355-a26795901f2bRudolf DichlerPart Number: ISOW1412 We are using two ISOW1412 devices placed directly next to each other on the same PCB, operating as an RS-485 repeater. During EN 55032 Class B radiated emission testing, the design exceeds the limits. The highest emission peak is around 50 MHz, exceeding the limit by approximately 7 dB&#181;V/m (Peak) and 2 dB&#181;V/m (Quasi-Peak). We have already implemented the PCB layout and EMC recommendations known to us. We are therefore particularly interested in whether TI has any specific experience or recommendations for using two ISOW1412 devices in such a close arrangement that could help reduce the radiated emissions. Near-field measurements with a magnetic probe also showed increased RF activity around the ISOW1412 devices at 50 MHz. Any advice or experience from TI regarding this type of implementation would be highly appreciated.Industrial AutomationISOW1412https://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/1679809/iso7742-iso7742-for-isolating-bidirectional-swd-swclk-swdio-is-this-configuration-correct-and-is-a-reference-schematic-available/6474705Mon, 07 Sep 2026 07:38:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:df1b1063-6ee2-45e9-adb0-e647c69eff02David Kim2Follow-up: Would ISO1541 also work for this SWD application? We&#39;re also considering ISO1541 instead, since it has a genuinely bidirectional data channel (open-drain) plus one unidirectional clock channel, which seems to map directly to SWDIO/SWCLK without needing external discrete circuitry. Given ISO1541 is designed for I2C&#39;s open-drain bus: Would ISO1541 work correctly with SWD, given SWDIO is typically push-pull rather than open-drain? ISO1541 is rated up to 1MHz — is this a hard limit for this application, or can it be pushed higher for a non-I2C use case like SWD? Thanks.https://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/1679809/iso7742-iso7742-for-isolating-bidirectional-swd-swclk-swdio-is-this-configuration-correct-and-is-a-reference-schematic-availableMon, 07 Sep 2026 06:54:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:38e5cfa1-c735-4c53-892e-9e55290048bcDavid Kim2Part Number: ISO7742 Other Parts Discussed in Thread: ISO1541 Hello, We are looking to add reinforced isolation to an SWD programming/debug interface (used for downloading firmware to a micro-inverter MCU). The SWD interface has: SWCLK : unidirectional (debugger → MCU) SWDIO : bidirectional (debugger ↔ MCU) We are planning to use ISO7742 (2 forward / 2 reverse channels) configured as follows: 1 forward channel: SWCLK (debugger → MCU) 1 forward + 1 reverse channel: SWDIO (bidirectional) Remaining reverse channel: unused or available for SWO Questions: Is this channel configuration correct for isolating SWD with ISO7742? Is there a reference schematic available for this application? Thank you for your help.ISO1541ISO7742https://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/1679393/iso6542-confirmation-of-iso6542dbqr-selection-for-uart-digital-isolationFri, 04 Sep 2026 04:57:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:272fb7b1-ddc8-4584-b339-0a639362cb68Chetan Bidap1Part Number: ISO6542 Hi Ti I am planning to use the ISO6542DBQR digital isolator for UART communication at a data rate of up to 2 Mbps . Could you please confirm whether this is the appropriate part number for my application and whether it supports reliable UART communication at this data rate? Please find attached a snapshot of my digital isolator connection for your reference. In my design, the UART signals from the MCU operate at 3.3 V and are connected to one side of the ISO6542. On the isolated side, I am planning to use a 5 V supply for the interface circuit. Could you please confirm whether the ISO6542 can operate correctly with 3.3 V on one side and 5 V on the other side , and whether this configuration is suitable for UART communication at up to 2 Mbps? Additionally, please review the attached connection and let me know if there are any recommended changes to the power supply, signal connections, or external components to ensure reliable operation. Thank you for your support.Industrial AutomationISO6542https://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/1678828/ucc34141-robustness-against-transient-voltages/6471833Thu, 03 Sep 2026 06:45:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:7d9157f6-514d-4df6-8acb-81ba58d410e8Shinu.V.MathewHi Andreas, The device is planned to certify for IEC 60747-17 and this is the semiconductor component standard for magnetic and capacitive coupler for basic and reinforced insulation. https://www.ti.com/lit/wp/slla563/slla563.pdf Thanks.https://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/1678857/iso6421-what-is-the-minimum-and-maximum-range-of-package-height/6471457Wed, 02 Sep 2026 23:14:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:d0b0843e-9c51-4a20-a975-9cb546be3e49Aaditya V.Hi Adam, Please allow me to check with our packaging team regarding the variation of the package height. Regards, Aaditya