https://community.nxp.com/t5/Powertrain-and-Electrification/MC33GD3000-Power-dissipation-profiles/m-p/1496243#M325 <P>Hi,</P><P>I have a question related to the figure about the power dissipation of the MC33GD3000 shown in the datasheet:</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="image.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/188026iDD569C7010BE3631/image-size/large?v=v2&amp;px=999" role="button" title="image.png" alt="image.png" /></span></P><P>Is it right, that the power dissipation is given in ohms or should it be given in watts?</P><P>BR</P><P>Tom</P> Wed, 27 Jul 2022 08:41:20 GMT TomLightning 2022-07-27T08:41:20Z https://community.nxp.com/t5/Powertrain-and-Electrification/MC33GD3000-Power-dissipation-profiles/m-p/1496243#M325 <P>Hi,</P><P>I have a question related to the figure about the power dissipation of the MC33GD3000 shown in the datasheet:</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="image.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/188026iDD569C7010BE3631/image-size/large?v=v2&amp;px=999" role="button" title="image.png" alt="image.png" /></span></P><P>Is it right, that the power dissipation is given in ohms or should it be given in watts?</P><P>BR</P><P>Tom</P> Wed, 27 Jul 2022 08:41:20 GMT https://community.nxp.com/t5/Powertrain-and-Electrification/MC33GD3000-Power-dissipation-profiles/m-p/1496243#M325 TomLightning 2022-07-27T08:41:20Z https://community.nxp.com/t5/Powertrain-and-Electrification/MC33GD3000-Power-dissipation-profiles/m-p/1496316#M326 <P>Hi Tom,</P> <P>You are right, it should be given in watts.</P> <P>Thank you for pointing that out, we will correct it in the next datasheet revision.</P> <P>Best regards,</P> <P>Tomas</P> Wed, 27 Jul 2022 10:27:49 GMT https://community.nxp.com/t5/Powertrain-and-Electrification/MC33GD3000-Power-dissipation-profiles/m-p/1496316#M326 TomasVaverka 2022-07-27T10:27:49Z https://community.nxp.com/t5/Powertrain-and-Electrification/MC33GD3000-Power-dissipation-profiles/m-p/1496403#M327 <P>Okay, that makes more sense. The thermal resistance from the exposed pad to the junction (internal chip structure) is give with 3°C/W acc. datasheet. Let's assume that the ground plane which is directly connected to the exposed pad has a temperature of +125°C. Is the assumption right, that my junction temperature would only increase about approx. 3°C at 1W power dissipation? I'm trying to find out if I could get a thermal problem when operating the MC33GD3000 with the battery supply.</P><P>BR</P><P>Tom</P> Wed, 27 Jul 2022 12:59:58 GMT https://community.nxp.com/t5/Powertrain-and-Electrification/MC33GD3000-Power-dissipation-profiles/m-p/1496403#M327 TomLightning 2022-07-27T12:59:58Z