https://community.nxp.com/t5/Power-Management/FS45-power-up-down-squence-confirmations/m-p/2002543#M3941 Hi Guoweisun,<BR />我們轉到 ticket 上討論，因為客戶測試完對原本的問題孩還有疑惑，michael 的部分轉移到我這邊進行協助，感謝 Wed, 27 Nov 2024 06:28:01 GMT Eason_L 2024-11-27T06:28:01Z https://community.nxp.com/t5/Power-Management/FS45-power-up-down-squence-confirmations/m-p/2002364#M3939 <P>Hi,</P><P>I have some questiINons about FS45 power up/down squence, please help to confirm, thanks!</P><P>1. My VCORE and INTB power up at the same time, is it correct(a bit different from datasheet)? My VCORE is connected to VDDIO. INTB is pulled up to VDDIO.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Eason_L_0-1732671776127.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/312695i57DE23D330DD635D/image-size/medium?v=v2&amp;px=400" role="button" title="Eason_L_0-1732671776127.png" alt="Eason_L_0-1732671776127.png" /></span></P><P>&nbsp;</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Eason_L_1-1732671793882.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/312696i69D8E0466101FE17/image-size/medium?v=v2&amp;px=400" role="button" title="Eason_L_1-1732671793882.png" alt="Eason_L_1-1732671793882.png" /></span></P><P>2. Is my VCORE and RSTB working properly?</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Eason_L_3-1732672297546.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/312699i5A9F481415D20725/image-size/medium?v=v2&amp;px=400" role="button" title="Eason_L_3-1732672297546.png" alt="Eason_L_3-1732672297546.png" /></span></P><P>3. INTB and VCORE shoud power down at the same time, but INTB has a p rior slope(circled in pic), is it correct? After expanding INTB and VCORE wave forms, I found INTB is 260us late compare to VCORE, is it correct?</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Eason_L_4-1732672327743.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/312700iF4D1A761F16C3326/image-size/medium?v=v2&amp;px=400" role="button" title="Eason_L_4-1732672327743.png" alt="Eason_L_4-1732672327743.png" /></span></P><P>&nbsp;</P><P>&nbsp;</P> Wed, 27 Nov 2024 01:58:48 GMT https://community.nxp.com/t5/Power-Management/FS45-power-up-down-squence-confirmations/m-p/2002364#M3939 Eason_L 2024-11-27T01:58:48Z https://community.nxp.com/t5/Power-Management/FS45-power-up-down-squence-confirmations/m-p/2002416#M3940 <P>HI Eason</P> <DIV><FONT face="-apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Helvetica, Arial, sans-serif, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol" color="rgba(0, 0, 0, 0)"><SPAN><A href="mailto:michael.gao@wpi-group.com" target="_blank" rel="noopener" shape="rect">michael.gao@wpi-group.com</A></SPAN></FONT>&nbsp;有相同问题case<SPAN>00666596</SPAN>&nbsp;，我已经回复他了。</DIV> <DIV>你们都是一个公司是不是提了相同的ticket呢？</DIV> <DIV>麻烦确认下多谢</DIV> Wed, 27 Nov 2024 03:19:06 GMT https://community.nxp.com/t5/Power-Management/FS45-power-up-down-squence-confirmations/m-p/2002416#M3940 guoweisun 2024-11-27T03:19:06Z https://community.nxp.com/t5/Power-Management/FS45-power-up-down-squence-confirmations/m-p/2002543#M3941 Hi Guoweisun,<BR />我們轉到 ticket 上討論，因為客戶測試完對原本的問題孩還有疑惑，michael 的部分轉移到我這邊進行協助，感謝 Wed, 27 Nov 2024 06:28:01 GMT https://community.nxp.com/t5/Power-Management/FS45-power-up-down-squence-confirmations/m-p/2002543#M3941 Eason_L 2024-11-27T06:28:01Z