https://e2e.ti.com/support/power-management-group/power-management/<p style="display:none;">blank</p>en-USTelligent Community 13https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1672625/lm51770-lm51770-unexpected-output-behavior/6448665Wed, 12 Aug 2026 17:09:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:f046787a-baa2-41e4-87f0-26e7048d2110BrigitteHello Rain, Is my understanding correct that you have a voltage applied to the output (12V) and then apply VIN (19V) and while VIN is applied, the spike on the blue line is output voltage that gets higher than 12V. I am in addition observing a similar spike on EN. Is it possible that there is some GND shift happening while you apply the 19V? Best regards, Brigittehttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1671312/tpsm843820-cramp-pf-setting/6448662Wed, 12 Aug 2026 17:06:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:c582b5af-d801-4731-995d-57b555eab57cJonathan HumphriesHi Masashi, I would recommend using the 4pF Cramp value, and if you have issues with stability during validation, switch to the 2pF capacitor. You are correct to take into account the FPGA&#39;s bypass capacitance in the Cramp calculation. Thanks, Jonathanhttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1672779/tps62825a-maximum-iq-rangeWed, 12 Aug 2026 16:56:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:8c5c0b96-1db4-48b9-9ca5-0e8d8f640e85Hideki Hayashi1Part Number: TPS62825A Hi team, Customer wants to know how much Iq in switching may variant in edge situation. It is okay that the value is not guranteed, and customer don&#39;t expect so, but just wants to how much range should be considered in general. Best regards, HayashiTPS62825Ahttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1664272/bq27z746evm-047-charge-discharge-fets-not-enabling-under-any-circumstances---xdsg-xchg-always-high/6448651Wed, 12 Aug 2026 16:55:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:8fd65394-0ca5-49d2-935d-a3dfa00e3294Daniel ShchurHi Allen, Following up on this again. Any other ideas I can try out? Thanks.https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1672330/ucc28180-ucc28180-mcu-based-enable-disable-control/6448645Wed, 12 Aug 2026 16:47:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:7024304b-26b8-4520-940c-f47fc5371920Shailesh DubeyHi Akash, Thank you for your continued interest in UCC28180. Here&#39;s the response to your queries: It is not recommended to pull down the VCOMP pin directly to implement an MCU-based enable/disable function. Doing so directly interferes with the voltage loop&#39;s slow analog compensation network, risking uncontrolled current spikes upon release, rapid capacitor discharge stress, and disruption to the controller&#39;s internal Soft Start and Enhanced Dynamic Response logic. Same as pointer 1. Fig. 25 in the datasheet depicts a representative schematic to implement a circuit that caters to this requirement. For your reference, I am pasting a snap of the same below. The preferred method is to pull down the VSENSE pin to a voltage lower than 0.82V as depicted in the schematic. When the NPN transistor turns on, it forces the VSENSE voltage below the 0.82V Open-Loop Protection (OLP) threshold, cleanly putting the IC into a low-power standby state. Once released, the controller safely re-initializes through its standard, controlled soft-start sequence to prevent startup stress on your 1 kW charger components. Thank you. Regards, Shaileshhttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1671289/ref60-reference-voltage-noise-bandwidth/6448633Wed, 12 Aug 2026 16:34:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:fa6c8629-676a-4291-adba-528f149ad7d1Kenzy MashrakiAlmost! The narrowest bandwidth (usually the anti-aliasing filter for a SAR ADC) is what has the greatest effect on the ENBW, but not equal to it. The ENBW is then calculated based on that stage&#39;s transfer function. To clarify, the ENBW is the cutoff frequency of an ideal brick-wall filter whose noise power is approximately equal to the noise power of the given filter. It&#39;s a combination of the bandwidths of each stage in the system. However, we can simplify the calculations if there is one stage in the system with a much narrower bandwidth (the anti-aliasing filter) since it will generally have a greater effect on overall ENBW than the others. With this approximation, we can calculate the ENBW based on the band-limiting stage&#39;s filter type. If you would like more information on the specific calculations of the ENBW of an ADC system, the following resource could be helpful: Analyzing and calculating noise bandwidth in ADC systems – the digital filter . The approximation I just mentioned is found on page 11. Thank you, Kenzy Mashrakihttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1667466/bq27z746-bq27z746-after-update-status-reaches-0x06-or-0x0e-is-it_enable-required-again-in-deployment-to-keep-learning-active/6448629Wed, 12 Aug 2026 16:31:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:734ee14c-e066-48d6-8c46-06b67af77de6Alex CandiaHi Alan, Is there an update to my final questions? I appreciate TI timeshttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1672671/tps2hcs08-q1-can-the-sns-pin-be-used-to-measure-an-external-resistor-when-isns-is-disabled/6448627Wed, 12 Aug 2026 16:30:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:66f83410-7f95-4565-bfa5-f1d4e75675a7Filip RadosHi Patrick, I&#39;ll check and get back to you in a few days. Thanks, Filiphttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1672770/tps536c7-tps536c7b0rslr-request-for-complete-datasheet-and-programming-specificationWed, 12 Aug 2026 16:29:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:fbc69041-385a-4754-990e-94a7a80fe704Snigdha ChatterjeePart Number: TPS536C7 Hello TI Team, We are working with TPS536C7B0RSLR . We were able to find documentation for TPS536C7B1RSLR , but we could not locate the documentation specifically for the B0 version. Could you please provide the following documents for TPS536C7B0RSLR : Complete Datasheet Programming Specification / Programming Manual Thank you for your assistance.TPS536C7https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1669468/bq25640-bq25640-x-bq25630/6448621Wed, 12 Aug 2026 16:27:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:d59beab0-96f2-4bc2-a85e-bfe1a2771dcfGilberto ErmacovitchHi Could you provide me a number for the current flowing from the SW pin to GND? BR Gilbertohttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1672767/tps25772-q1-spec-request-for-wca-calculationWed, 12 Aug 2026 16:26:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:aac99ec8-3f83-48ce-92ae-e31f6fd888d3Marc LiuPart Number: TPS25772-Q1 Hi Team, My customer is using TPS25772-Q1 and working on worst case analysis. They need the rise time / fall time / on time / off time of internal MOSFET for calculation. It&#39;s better if we can provide min/typ/max value. Could you help provide it? Thank you! MarcTPS25772-Q1https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1672579/bq75614-q1-request-of-the-complete-fmeda/6448610Wed, 12 Aug 2026 16:23:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:7023e6c5-c495-4505-9c8c-5e9dfe2aee92Nate EstoqueHi Junwei, The FMEDA documents are found in secure resources. The FMEDA report for the BQ75614-Q1 can be found here. Best, Natehttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1672764/tps54302-forbidden-you-don-t-have-permission-to-access-this-resourceWed, 12 Aug 2026 16:23:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:bde3ac8d-f627-4a10-8bad-c306dec9ebd6WAIL AlRUBAIAIPart Number: TPS54302 Hello TI Support Team, I am an engineering student currently building custom power boards for my academic and personal projects. I heavily rely on TI components, but I am currently unable to access many TI documentation pages, reference designs, and the E2E support forums from my location/network. I believe my school&#39;s network IP address or my student account might be triggering an automated security block or firewall filter. Could you please assist me in verifying my account status or whitelisting my access so I can continue utilizing TI reference designs and community forums for my power electronics research? Thank you for your time and support. Best regards, WailTPS54302https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1672065/tps4816-q1-in-rush-trips-ocp/6448609Wed, 12 Aug 2026 16:22:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:cae27f7f-e45b-4a55-9d9f-9440ce07b70dShawn MelansonHi Sarah, Just to clarify the issue is with the pre-charge SCP\OCP (CS2). we are utilizing a 0.5Ω shunt for the feedback. To add further details the upstream capacitance is about 10mF Thanks, Shawnhttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1672132/tps54540b-q1-can-not-archive-output-current-switching-frequency-like-design/6448607Wed, 12 Aug 2026 16:19:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:d3144b1f-738b-4348-8e8d-0763276a1332Onkar BhakareHello Luong Check here - SLVC452 Calculation tool | TI.com Thank you Regards Onkar Bhakarehttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1661188/tps26750-the-tps26750-command-interface-stopped-executing-commands/6448604Wed, 12 Aug 2026 16:17:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:1a332b3a-7b9e-4221-8a45-0acccc31cf75Katilynn MarHello Fabio, Thank you for the reply. Just want to highlight that the TPS26750 is designed for applications supporting &gt;100W power delivery. The configuration you shared seems to not need EPR support. [quote userid=&quot;671696&quot; url=&quot;~/support/power-management-group/power-management/f/power-management-forum/1661188/tps26750-the-tps26750-command-interface-stopped-executing-commands/6442952&quot;]I also observed that after a few minutes of charging, when the Samsung device is nearly fully charged, it appears to renegotiate the USB PD contract. At that point, the TPS26750 CMD interface seems to become responsive again.[/quote] What PD contracts were observed in the test set‑up? What were the initial voltage/current levels that the sink accepted? During the “nearly‑charged” renegotiation, which PDO is finally accepted? [quote userid=&quot;671696&quot; url=&quot;~/support/power-management-group/power-management/f/power-management-forum/1661188/tps26750-the-tps26750-command-interface-stopped-executing-commands/6414998&quot;] This works fine when the TPS26750 is acting as the power source. However, after some time, communication freezes when a sink device is connected, such as a mobile phone using PPS. When this happens, the CMD1 register no longer returns 0x00, and the BQ25756 stops responding to I2CR/I2CW commands. Have you seen this behavior before, or is there any known limitation regarding I2CR/I2CW transactions while PPS negotiation is active? and is there a recommended method to recover the 4CC command processor without having to reset the TPS26750 by unplugging and reconnecting the battery? [/quote] Are you able to send a &quot;Gaid&quot; response at this time? P lease provide I2C logs that capture the read/write transactions on the I2C controller bus when the BQ device stops responding, followed by the attempt to issue a warm‑reset Gaid command. Thank you, Katilynnhttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1672310/bq25750-pd-battery-charger-superspeed-mux-architecture/6448582Wed, 12 Aug 2026 16:03:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:7a143257-d7e3-4073-a56e-9fb05774ebd9Nir GilgurHello Sathya, From the mux side, we don&#39;t have such reference designs. Ethan has already provided what they have from their side. I am looping in the team supporting the TPS devices to share the content they have. Thanks, Nirhttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1672665/tps274c65-output-channel-enable-when-spi-line-pull-up/6448572Wed, 12 Aug 2026 15:58:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:95c698c5-5a69-4026-8836-f868abe5c072Patrick ShaltonHi Shengyue, Can you please share where the SPI jumpers are being connected and the lower left jumper configurations (J1, J12...J18, J23) on the below EVM picture? Thanks, Patrickhttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1669385/tps22996-back-to-back-configuration/6448550Wed, 12 Aug 2026 15:43:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:9639fc28-6805-4942-869c-5f33b804bbf9Rishika PatelHi Mitja, The schematic looks good but with the above configuration it is possible that the quick output discharge path is continuously on when voltage is applied to VOUT even though the switch is not on. This path is not designed for continuous current flow, only discharging capacitors. So, you would either have to use the non-QOD variant, TPS22996N, or change the above configuration so that current flows from VIN1-VOUT1-VOUT2-VIN2 so that no voltage is applied to the VOUT pins when the switches are disabled. Thanks, Rishika Patelhttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1671937/ucc15241-q1-ucc15241-q1-for-isolated-15-v-sensor-supply-and-cispr-32-class-b/6448546Wed, 12 Aug 2026 15:40:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:98f9242f-06e0-4a3d-9063-0ec1bb92d186Jos&#233; ArbugeriThanks Shinu.V.Mathew