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<?xml-stylesheet type="text/xsl" href="https://e2echina.ti.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>电机驱动器论坛 - 最近的话题</title><link>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum</link><description /><dc:language>zh-CN</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Fri, 18 Sep 2026 02:52:00 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum" /><item><title>DRV8803EVM: Inquiry regarding mechanical specifications for DRV8803EVM</title><link>https://e2echina.ti.com/thread/1094802?ContentTypeID=0</link><pubDate>Wed, 16 Sep 2026 03:33:14 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:63bd26c6-f257-43d5-9c5e-ee57804fc9df</guid><dc:creator>he he</dc:creator><slash:comments>2</slash:comments><comments>https://e2echina.ti.com/thread/1094802?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1094802/drv8803evm-inquiry-regarding-mechanical-specifications-for-drv8803evm/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; DRV8803EVM&lt;/p&gt;&lt;div&gt;&lt;strong&gt;&lt;span data-spm-anchor-id="5176.28103460.0.i16.51b32988kFt3GC"&gt;Dear TI Technical Support Team,&lt;/span&gt;&lt;/strong&gt;&lt;/div&gt;
&lt;div&gt;I am writing to request specific mechanical information regarding the &lt;strong&gt;DRV8803EVM&lt;/strong&gt; evaluation board.&lt;/div&gt;
&lt;div&gt;I am currently designing an enclosure to house the DRV8803EVM for a project. To ensure a proper fit, I need to secure the board using the mounting holes. However, I have been unable to find the specific dimensions and specifications for these holes in the publicly available documentation.&lt;/div&gt;
&lt;div&gt;Could you please provide the following details:&lt;/div&gt;
&lt;ol style="list-style-type:auto;" start="1"&gt;
&lt;li style="list-style-type:none;"&gt;The diameter of the mounting holes.&lt;/li&gt;
&lt;li style="list-style-type:none;"&gt;The coordinates/dimensions between the mounting holes.&lt;/li&gt;
&lt;li style="list-style-type:none;"&gt;If available, a mechanical drawing (PDF or DXF) highlighting these specifications would be greatly appreciated.&lt;/li&gt;
&lt;/ol&gt;
&lt;div&gt;Thank you for your assistance. I look forward to your reply.&lt;/div&gt;
&lt;div&gt;&lt;strong&gt;&lt;span data-spm-anchor-id="5176.28103460.0.i17.51b32988kFt3GC"&gt;Best regards,&lt;/span&gt;&lt;/strong&gt;&lt;/div&gt;</description></item><item><title>RE: DRV8803EVM: Inquiry regarding mechanical specifications for DRV8803EVM</title><link>https://e2echina.ti.com/thread/3942368?ContentTypeID=1</link><pubDate>Fri, 18 Sep 2026 02:52:00 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:acc0cc45-e9a9-421c-a37a-315fefcdefe4</guid><dc:creator>Vivian Gao</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3942368?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1094802/drv8803evm-inquiry-regarding-mechanical-specifications-for-drv8803evm/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;a href="https://e2echina.ti.com/cfs-file/__key/communityserver-discussions-components-files/121/slvc591.zip"&gt;e2echina.ti.com/.../slvc591.zip&lt;/a&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: DRV8803EVM: Request for Mechanical Specifications of DRV8803EVM (Mounting Hole Dimensions)</title><link>https://e2echina.ti.com/thread/3940527?ContentTypeID=1</link><pubDate>Wed, 16 Sep 2026 07:15:13 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:e6cc1c5c-1832-4e10-abe8-83d091b0d1bc</guid><dc:creator>Links</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3940527?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1094805/drv8803evm-request-for-mechanical-specifications-of-drv8803evm-mounting-hole-dimensions/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;Kindly check the following link and refer to the gerber files.&lt;/p&gt;
&lt;p&gt;&lt;a id="" href="https://www.ti.com.cn/lit/zip/SLVC591"&gt;https://www.ti.com.cn/lit/zip/SLVC591&lt;/a&gt;&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>DRV8803EVM: Request for Mechanical Specifications of DRV8803EVM (Mounting Hole Dimensions)</title><link>https://e2echina.ti.com/thread/1094805?ContentTypeID=0</link><pubDate>Wed, 16 Sep 2026 05:59:45 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:e5a67047-428d-4411-a3ad-fab4a493fd74</guid><dc:creator>he he</dc:creator><slash:comments>1</slash:comments><comments>https://e2echina.ti.com/thread/1094805?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1094805/drv8803evm-request-for-mechanical-specifications-of-drv8803evm-mounting-hole-dimensions/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; DRV8803EVM&lt;/p&gt;&lt;div&gt;&lt;strong&gt;&lt;span data-spm-anchor-id="5176.28103460.0.i25.51b32988kFt3GC"&gt;Dear TI Technical Support Team,&lt;/span&gt;&lt;/strong&gt;&lt;/div&gt;
&lt;div&gt;I am planning to purchase a &lt;strong&gt;DRV8803EVM&lt;/strong&gt; evaluation board and intend to install it into a custom enclosure.&lt;/div&gt;
&lt;div&gt;To ensure the board fits properly, I need to verify if the mounting holes on the EVM will align with the standoffs in my enclosure. Could you please provide the following mechanical specifications for the DRV8803EVM?&lt;/div&gt;
&lt;ol style="list-style-type:auto;" start="1"&gt;
&lt;li style="list-style-type:none;"&gt;&lt;strong&gt;Hole-to-hole dimensions:&lt;/strong&gt; The distance between the mounting holes.&lt;/li&gt;
&lt;li style="list-style-type:none;"&gt;&lt;strong&gt;&lt;span data-spm-anchor-id="5176.28103460.0.i24.51b32988kFt3GC"&gt;Hole specifications:&lt;/span&gt;&lt;/strong&gt; The diameter of the mounting holes (and whether they are plated through-holes or threaded).&lt;/li&gt;
&lt;/ol&gt;
&lt;div&gt;If a mechanical drawing (such as a PDF or DXF file) containing these dimensions is available, it would be extremely helpful.&lt;/div&gt;
&lt;div&gt;Thank you for your assistance. I look forward to your reply.&lt;/div&gt;
&lt;div&gt;&lt;strong&gt;Best regards,&lt;/strong&gt;&lt;/div&gt;</description></item><item><title>RE: DRV8803EVM: Request for Mechanical Specifications of DRV8803EVM (Mounting Hole Dimensions)</title><link>https://e2echina.ti.com/thread/3940520?ContentTypeID=1</link><pubDate>Wed, 16 Sep 2026 06:10:17 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:b2a563e2-d5c5-4c55-a837-bf942566d3a0</guid><dc:creator>Links</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3940520?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1094805/drv8803evm-request-for-mechanical-specifications-of-drv8803evm-mounting-hole-dimensions/rss?ContentTypeId=0</wfw:commentRss><description>&lt;div style="border-width:100%;direction:ltr;"&gt;
&lt;div style="direction:ltr;margin-left:0in;margin-top:0in;width:6.5986in;"&gt;
&lt;div style="direction:ltr;margin-left:0in;margin-top:0in;width:6.5986in;"&gt;
&lt;p style="font-family:&amp;#39;Segoe UI&amp;#39;;font-size:10.5pt;margin:0in;"&gt;Hello,&lt;/p&gt;
&lt;p style="font-family:&amp;#39;Segoe UI&amp;#39;;font-size:10.5pt;margin:0in;"&gt;We have received your case and are currently investigating it.&lt;/p&gt;
&lt;p style="font-family:&amp;#39;Segoe UI&amp;#39;;font-size:10.5pt;margin:0in;"&gt;The review process may take some time, and we sincerely appreciate your patience in the meantime.&lt;/p&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: DRV8803EVM: Inquiry regarding mechanical specifications for DRV8803EVM</title><link>https://e2echina.ti.com/thread/3940518?ContentTypeID=1</link><pubDate>Wed, 16 Sep 2026 04:02:01 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:51e0fb99-ad2d-4859-8d0f-b3da9e58daee</guid><dc:creator>Vivian Gao</dc:creator><slash:comments>1</slash:comments><comments>https://e2echina.ti.com/thread/3940518?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1094802/drv8803evm-inquiry-regarding-mechanical-specifications-for-drv8803evm/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;Thank you for your attention to TI products. We are verifying your issue, please wait for our reply.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: DRV8245-Q1: DRV8245-Q1（SPI-S型号）的唤醒瞬态</title><link>https://e2echina.ti.com/thread/3939688?ContentTypeID=1</link><pubDate>Tue, 15 Sep 2026 07:05:47 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:e7526b84-7076-498f-a9a1-5a3e6796eb51</guid><dc:creator>Alice</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3939688?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1094579/drv8245-q1-drv8245-q1-spi-s/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;您好，&lt;/p&gt;
&lt;p&gt;必须的。&lt;/p&gt;
&lt;p&gt;&lt;img style="max-height:240px;max-width:320px;" src="https://e2echina.ti.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/121/pastedimage1789455687987v1.png" alt=" " /&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href="https://www.ti.com.cn/lit/ds/symlink/drv8245-q1.pdf?ts=1789368552830&amp;amp;ref_url=https%253A%252F%252Fwww.ti.com.cn%252Fproduct%252Fzh-cn%252FDRV8245-Q1%253FkeyMatch%253DDRV8245SQRXZRQ1%2526tisearch%253Duniversal_search%2526usecase%253DOPN-ALT"&gt;DRV8245-Q1 Automotive H-Bridge Driver with Integrated Current Sense and Diagnostics datasheet (Rev. E)&lt;/a&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>DRV8245-Q1: DRV8245-Q1（SPI-S型号）的唤醒瞬态</title><link>https://e2echina.ti.com/thread/1094579?ContentTypeID=0</link><pubDate>Tue, 15 Sep 2026 02:14:33 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:1e899d7a-6479-44ae-bb56-a4c3f267f388</guid><dc:creator>Henry Lee</dc:creator><slash:comments>2</slash:comments><comments>https://e2echina.ti.com/thread/1094579?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1094579/drv8245-q1-drv8245-q1-spi-s/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; DRV8245-Q1&lt;/p&gt;&lt;span data-type="leaf"&gt;你好，对于SPI（S）型号用于PH/EN 模式时，不使用SPI通信，仅使用Drvoff &amp;amp; nfault &amp;amp; PH &amp;amp; EN四个引脚控制；那么规格书第24页的6.7.2.2 SPI 型号 的唤醒瞬态中的t0~t5中，t4（控制器 &amp;ndash; 通过 SPI 发出 CLR_FLT 命令 以确认器件唤醒 ）是否为必须？&lt;/span&gt;
&lt;span data-type="leaf"&gt;Hello, for the SPI (S) model when operating in PH/EN mode, SPI communication is not used; instead, only four pins&amp;mdash;Drvoff, nfault, PH, and EN&amp;mdash;are used for control. In this case, is t4 (controller issuing a CLR_FLT command via SPI to confirm device wake-up) mandatory in the wake-up transient of the SPI model described in section 6.7.2.2 on page 24 of the datasheet?&lt;/span&gt;</description></item><item><title>RE: DRV8245-Q1: DRV8245-Q1（SPI-S型号）的唤醒瞬态</title><link>https://e2echina.ti.com/thread/3939657?ContentTypeID=1</link><pubDate>Tue, 15 Sep 2026 02:26:05 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:270e992d-4a25-4ca7-b2ac-6432a78b2266</guid><dc:creator>FRANK1</dc:creator><slash:comments>1</slash:comments><comments>https://e2echina.ti.com/thread/3939657?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1094579/drv8245-q1-drv8245-q1-spi-s/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;感谢您对TI产品的关注！&lt;br /&gt;关于你的咨询，我们正在确认您的问题，感谢您的耐心等待。&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>DRV8245-Q1: 库存信息（inventory information）</title><link>https://e2echina.ti.com/thread/1094380?ContentTypeID=0</link><pubDate>Mon, 14 Sep 2026 01:19:57 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:96b51256-497e-4d78-a05c-18c7ac5f972c</guid><dc:creator>Henry Lee</dc:creator><slash:comments>1</slash:comments><comments>https://e2echina.ti.com/thread/1094380?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1094380/drv8245-q1-inventory-information/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; DRV8245-Q1&lt;/p&gt;&lt;p&gt;你好，当前官网显示该系列芯片均处于缺货状态，请问何时能正常供货，进而保证市场价格稳定？&lt;/p&gt;
&lt;p&gt;（Hello, the official website currently shows that all chips in this series are out of stock. Could you please inform us when normal supply will resume to ensure market price stability?）&lt;/p&gt;</description></item><item><title>RE: DRV8245-Q1: 库存信息（inventory information）</title><link>https://e2echina.ti.com/thread/3939067?ContentTypeID=1</link><pubDate>Mon, 14 Sep 2026 01:40:42 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:d725ad08-761b-4488-ab99-e846f4c03028</guid><dc:creator>Vivian Gao</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3939067?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1094380/drv8245-q1-inventory-information/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;请联系客服中心咨询非技术问题，比如库存，订单，发货等。&lt;/p&gt;
&lt;p&gt;&lt;a href="https://www.ti.com.cn/zh-cn/about-ti/contact-us.html"&gt;联系我们 | TI.com.cn&lt;/a&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: DRV8711: DRV8711出现nFault,重启后又恢复正常</title><link>https://e2echina.ti.com/thread/3937037?ContentTypeID=1</link><pubDate>Thu, 10 Sep 2026 05:16:05 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:0fecee87-7fbf-4739-924b-83af57b0a0fc</guid><dc:creator>Daniel</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3937037?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1093449/drv8711-drv8711-nfault/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;您好&lt;/p&gt;
&lt;p&gt;根据您的说明可能存在外部干扰，但是没有相关资料无妨进一步确定，如果有相关状态寄存器的值或许可以进一步核实。&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>DRV8711: DRV8711出现nFault,重启后又恢复正常</title><link>https://e2echina.ti.com/thread/1093449?ContentTypeID=0</link><pubDate>Tue, 08 Sep 2026 07:07:35 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:ab4a8ce6-b44b-4096-9cc3-27d1639b0c1a</guid><dc:creator>guokai wang</dc:creator><slash:comments>4</slash:comments><comments>https://e2echina.ti.com/thread/1093449?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1093449/drv8711-drv8711-nfault/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; DRV8711&lt;/p&gt;&lt;p&gt;DRV8711不知什么原因触发了nFault错误,几分钟内短时间内重新上电不能恢复,多次尝试也不能恢复.故障板拆下来再快递回公司，大约经历了2天左右时间断电后又能自行恢复正常。客户在现场使用的时候有时经过一晚上也能恢复正常。起初怀疑是芯片过温保护，但是故障发生在刚开始运行不久，芯片温度并不高，而且正常长时间运行使用红外热成像仪测得芯片表面温度最高90℃，且芯片散热背板焊盘焊接可靠。驱动MOS管的温度最高80℃，型号为英飞凌的IPD068N10N3G，环境温度25℃。软件故障日志并未记录nFault错误的各寄存器标志位，所以也无法第一时间分辨具体是什么错误类型。请问可能的原因是什么呢？局部原理图如附件。TDRIVEN、TDRIVEP、IDRIVEN均为01，IDRIVEP为00，DTIME为11&lt;/p&gt;
&lt;p&gt;&lt;img src="https://e2echina.ti.com/cfs-file/__key/communityserver-discussions-components-files/121/99113812_2D00_0e79_2D00_4d1d_2D00_a81b_2D00_24244ac2d9a1.png" alt="99113812-0e79-4d1d-a81b-24244ac2d9a1.png" data-temp-id="99113812-0e79-4d1d-a81b-24244ac2d9a1.png-112824" /&gt;&lt;/p&gt;</description></item><item><title>RE: DRV8711: DRV8711出现nFault,重启后又恢复正常</title><link>https://e2echina.ti.com/thread/3937024?ContentTypeID=1</link><pubDate>Thu, 10 Sep 2026 03:14:20 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:b34daeba-5285-4119-93a0-021da146d000</guid><dc:creator>guokai wang</dc:creator><slash:comments>1</slash:comments><comments>https://e2echina.ti.com/thread/3937024?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1093449/drv8711-drv8711-nfault/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;不知道呢，软件程序并没有记录故障发生时的寄存器状态的日志。而且故障现象在还未能在公司实验室复现，即使在客户处也是偶发的故障。&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: DRV3245Q-Q1: DRV3245Q-Q1  提示VCPH_UVLO报错</title><link>https://e2echina.ti.com/thread/3937023?ContentTypeID=1</link><pubDate>Thu, 10 Sep 2026 03:10:50 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:5bf3671c-f3cf-41ec-839b-e6d59aa980d1</guid><dc:creator>Daniel</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3937023?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1093649/drv3245q-q1-drv3245q-q1-vcph_uvlo/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;您好&lt;/p&gt;
&lt;p&gt;请分享您的原理图。&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>DRV3245Q-Q1: DRV3245Q-Q1  提示VCPH_UVLO报错</title><link>https://e2echina.ti.com/thread/1093649?ContentTypeID=0</link><pubDate>Wed, 09 Sep 2026 08:03:46 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:f96a5acc-cf22-47b8-b6f6-426caf0cd20e</guid><dc:creator>jiangyue chen</dc:creator><slash:comments>2</slash:comments><comments>https://e2echina.ti.com/thread/1093649?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1093649/drv3245q-q1-drv3245q-q1-vcph_uvlo/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; DRV3245Q-Q1&lt;/p&gt;&lt;p&gt;&amp;nbsp; 使用DRV3245Q-Q1芯片时，发波前一切正常不报错，但MCU发送PWM波时，芯片先是报错VGS_HX和VDS_HX，强制关闭掉VGS_HX和VDS_HX报错后， 提示新的VCPH_UVLO报错。用示波器观察VCPH对PVDD，发现有一瞬间VCPH从21V掉至12V左右。&lt;/p&gt;
&lt;p&gt;&amp;nbsp; &amp;nbsp;VCPH外围电容是按照规格书推荐的值来选型。&lt;/p&gt;</description></item><item><title>RE: DRV3245Q-Q1: DRV3245Q-Q1  提示VCPH_UVLO报错</title><link>https://e2echina.ti.com/thread/3936268?ContentTypeID=1</link><pubDate>Wed, 09 Sep 2026 08:43:37 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:9c277577-985b-4fa4-b3e2-1f52c0ba48c0</guid><dc:creator>Daniel</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3936268?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1093649/drv3245q-q1-drv3245q-q1-vcph_uvlo/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;您好&lt;/p&gt;
&lt;p&gt;已经收到了您的案例，调查需要些时间，感谢您的耐心等待&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: DRV8711: DRV8711出现nFault,重启后又恢复正常</title><link>https://e2echina.ti.com/thread/3936240?ContentTypeID=1</link><pubDate>Wed, 09 Sep 2026 01:55:55 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:be4d3b0e-833b-4d7a-89cf-2a8b81123c40</guid><dc:creator>Daniel</dc:creator><slash:comments>1</slash:comments><comments>https://e2echina.ti.com/thread/3936240?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1093449/drv8711-drv8711-nfault/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;您好&lt;/p&gt;
&lt;p&gt;STATUS&lt;/p&gt;
&lt;p&gt;请问您读一下这个寄存器故障时处于什么样的状态。&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: DRV8711: DRV8711出现nFault,重启后又恢复正常</title><link>https://e2echina.ti.com/thread/3935623?ContentTypeID=1</link><pubDate>Tue, 08 Sep 2026 07:14:24 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:3ce633b7-0259-428a-84a8-c8222213d89f</guid><dc:creator>Vivian Gao</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3935623?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1093449/drv8711-drv8711-nfault/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;br /&gt;感谢您关注TI产品。我们正在核实您的问题，请耐心等待我们的回复。&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: DRV8701: DRV8701ERGER 合计评审 --驱动故障</title><link>https://e2echina.ti.com/thread/3935618?ContentTypeID=1</link><pubDate>Tue, 08 Sep 2026 06:11:49 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:69738918-1fde-46f1-86d5-0fd154bc8893</guid><dc:creator>Daniel</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3935618?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1093446/drv8701-drv8701erger---/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;您好&lt;/p&gt;
&lt;p&gt;根据您的描述应该触发了某种保护导致报错，但是关于内部结构等变化，您可以去&lt;a href="https://www.ti.com.cn/zh-cn/info/customer-support.html"&gt;客户支持中心&lt;/a&gt;申请失效分析。&lt;/p&gt;
&lt;p&gt;关于报错建议查以下相关保护功能。&lt;/p&gt;
&lt;p&gt;&lt;img style="max-height:240px;max-width:320px;" src="https://e2echina.ti.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/121/pastedimage1788847873809v1.png" alt=" " /&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>DRV8701: DRV8701ERGER 合计评审 --驱动故障</title><link>https://e2echina.ti.com/thread/1093446?ContentTypeID=0</link><pubDate>Tue, 08 Sep 2026 02:03:48 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:fb5b95a3-1051-49a5-beb4-75eadd6b4692</guid><dc:creator>liangliang lian</dc:creator><slash:comments>2</slash:comments><comments>https://e2echina.ti.com/thread/1093446?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1093446/drv8701-drv8701erger---/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; DRV8701&lt;/p&gt;&lt;ol&gt;
&lt;li&gt;DRV8701ERGER工作期间上位机报驱动故障。&lt;/li&gt;
&lt;li&gt;电机转动控制逻辑为GD32F103VET6控制DRV8701ERGER驱动MOS 开关来控制电机正反转。&lt;/li&gt;
&lt;li&gt;电路图根据DRV8701ERGER 第13页设计，未做改动。&lt;/li&gt;
&lt;li&gt;使用示波器测量 Pin9&amp;nbsp; &amp;nbsp;nFAULT信号为低电平，正常工作为3.3V，实际为0.2V.&lt;img src="https://e2echina.ti.com/cfs-file/__key/communityserver-discussions-components-files/121/_4F5C555E2A62FE56_-2026_2D00_09_2D00_08-091315.png" alt=" " /&gt;&lt;/li&gt;
&lt;li&gt;芯片进行超声波检测，发现芯片引线框分层。&lt;/li&gt;
&lt;li&gt;量测各个引脚对VCC阻值发先SH1/SH2 对电源脚阻值偏大。&lt;img src="https://e2echina.ti.com/cfs-file/__key/communityserver-discussions-components-files/121/_4F5C555E2A62FE56_-2026_2D00_09_2D00_08-095955.png" alt=" " /&gt;&lt;/li&gt;
&lt;li&gt;请帮忙确认DRV8701ERGER在工作期间什么状态下会导致芯片出现分层和SH1/SH2对VCC阻值出现异常，有没有遇到过相同的问题，原因帮忙告知一下，谢谢！&lt;/li&gt;
&lt;/ol&gt;</description></item><item><title>RE: DRV8701: DRV8701ERGER 合计评审 --驱动故障</title><link>https://e2echina.ti.com/thread/3935610?ContentTypeID=1</link><pubDate>Tue, 08 Sep 2026 02:47:24 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:b6171973-9853-43c7-a241-8c87dfbd34ef</guid><dc:creator>Vivian Gao</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3935610?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1093446/drv8701-drv8701erger---/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;感谢您关注TI产品。我们正在核实您的问题，请耐心等待我们的回复。&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>DRV8834: DRV8834驱动步进电机步进异常问题</title><link>https://e2echina.ti.com/thread/1092211?ContentTypeID=0</link><pubDate>Tue, 01 Sep 2026 07:33:10 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:9def84cf-3116-4a55-ac7f-4a59572b4c2c</guid><dc:creator>Weihua Deng</dc:creator><slash:comments>7</slash:comments><comments>https://e2echina.ti.com/thread/1092211?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1092211/drv8834-drv8834/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; DRV8834&lt;/p&gt;&lt;p&gt;在使用1/4、1/8、1/16、1/32模式时，每次触发STEP的现象都不一致，在VREF值较小的情况下（0.08~0.24V），在两相电流值相差最大的两步电机会出现非常明显的转动，但是在其他步数的转动非常微小甚至没有转动，在0.35V时，只有两相电流值相差最大的两步电机会出现非常明显的转动，其余位置不动。电机的额定相电流为0.5A RMS，VM为5V，在外部和地之间接了一个100uF电容。&lt;img src="https://e2echina.ti.com/cfs-file/__key/communityserver-discussions-components-files/121/6471.image.png" alt="image.png" data-temp-id="image.png-289792" /&gt;&lt;/p&gt;</description></item><item><title>RE: DRV8834: DRV8834驱动步进电机步进异常问题</title><link>https://e2echina.ti.com/thread/3931884?ContentTypeID=1</link><pubDate>Fri, 04 Sep 2026 08:28:16 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:0e95f2a2-3d85-4d67-860e-22c1bbe21cff</guid><dc:creator>Weihua Deng</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3931884?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1092211/drv8834-drv8834/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;20k&amp;Omega;和500&amp;Omega;的现象一致，都是&lt;span&gt;1/16在第6-11步会转动，8，9步转动最为明显，刚才发现线没接上所以不转&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: DRV8834: DRV8834驱动步进电机步进异常问题</title><link>https://e2echina.ti.com/thread/3931829?ContentTypeID=1</link><pubDate>Fri, 04 Sep 2026 07:55:36 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:5558f83f-3691-4673-973f-a55367c6871b</guid><dc:creator>Weihua Deng</dc:creator><slash:comments>1</slash:comments><comments>https://e2echina.ti.com/thread/3931829?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/motor-drivers/f/motor-drivers-forum/1092211/drv8834-drv8834/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;span&gt;ADECAY，BDECAY电阻改为20k&amp;Omega;后，1/16在第6-11步会转动，8，9步转动最为明显，后改为500&amp;Omega;，电机只震动，但已经不转了&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>