topic PCA82C250 damage in Digital Signal Controllers https://community.nxp.com/t5/Digital-Signal-Controllers/PCA82C250-damage/m-p/1335088#M2241 <P>During the batch use of PCA82C250, several cases of damage to the chip were found。Recently, it was discovered that one case was damaged after SMT。2 cases were damaged after being installed as a complete machine for aging test。Among them, for the NG product's pin entry impedance test, the input is as follows：</P><TABLE width="408"><TBODY><TR><TD width="120">Serial number</TD><TD width="72">TEST</TD><TD width="72">OK(Ω）</TD><TD width="72">NG1(Ω）</TD><TD width="72">NG2(Ω）</TD></TR><TR><TD>1</TD><TD>1-2</TD><TD>15.3M</TD><TD>7.03M</TD><TD>265.1K</TD></TR><TR><TD>2</TD><TD>3-2</TD><TD>15.7M</TD><TD>7.07M</TD><TD>254K</TD></TR><TR><TD>3</TD><TD>4-2</TD><TD>15.3M</TD><TD>7.11M</TD><TD>259K</TD></TR><TR><TD>4</TD><TD>5-2</TD><TD>13.1M</TD><TD>11.37M</TD><TD>263K</TD></TR><TR><TD>5</TD><TD>6-2</TD><TD>OL</TD><TD>238K</TD><TD>4.3</TD></TR><TR><TD>6</TD><TD>7-2</TD><TD>OL</TD><TD>200K</TD><TD>43K</TD></TR><TR><TD>7</TD><TD>8-2</TD><TD>OL</TD><TD>8.45M</TD><TD>43K</TD></TR><TR><TD>8</TD><TD>1-3</TD><TD>10.57K</TD><TD>10.56K</TD><TD>10.72K</TD></TR><TR><TD>9</TD><TD>2-3</TD><TD>3M</TD><TD>3M</TD><TD>248K</TD></TR><TR><TD>10</TD><TD>4-3</TD><TD>4.1K</TD><TD>4.1K</TD><TD>6.8M</TD></TR><TR><TD>11</TD><TD>5-3</TD><TD>6.76M</TD><TD>7.33M</TD><TD>223K</TD></TR><TR><TD>12</TD><TD>6-3</TD><TD>6.56M</TD><TD>3.22M</TD><TD>41.1K</TD></TR><TR><TD>13</TD><TD>7-3</TD><TD>6.5M</TD><TD>3.18M</TD><TD>213K</TD></TR><TR><TD>14</TD><TD>8-3</TD><TD>6.7M</TD><TD>6.72M</TD><TD>216K</TD></TR><TR><TD>15</TD><TD>7-6</TD><TD>38.3K</TD><TD>38.2K</TD><TD>255K</TD></TR><TR><TD>16</TD><TD>6-7</TD><TD>38.3K</TD><TD>38.37K</TD><TD>248K</TD></TR></TBODY></TABLE><P>&nbsp;</P><P>I want to know what caused the CAN chip to be damaged and what I can do to make a more in-depth confirmation.</P> Mon, 06 Sep 2021 01:47:32 GMT lizhaodai 2021-09-06T01:47:32Z PCA82C250 damage https://community.nxp.com/t5/Digital-Signal-Controllers/PCA82C250-damage/m-p/1335088#M2241 <P>During the batch use of PCA82C250, several cases of damage to the chip were found。Recently, it was discovered that one case was damaged after SMT。2 cases were damaged after being installed as a complete machine for aging test。Among them, for the NG product's pin entry impedance test, the input is as follows：</P><TABLE width="408"><TBODY><TR><TD width="120">Serial number</TD><TD width="72">TEST</TD><TD width="72">OK(Ω）</TD><TD width="72">NG1(Ω）</TD><TD width="72">NG2(Ω）</TD></TR><TR><TD>1</TD><TD>1-2</TD><TD>15.3M</TD><TD>7.03M</TD><TD>265.1K</TD></TR><TR><TD>2</TD><TD>3-2</TD><TD>15.7M</TD><TD>7.07M</TD><TD>254K</TD></TR><TR><TD>3</TD><TD>4-2</TD><TD>15.3M</TD><TD>7.11M</TD><TD>259K</TD></TR><TR><TD>4</TD><TD>5-2</TD><TD>13.1M</TD><TD>11.37M</TD><TD>263K</TD></TR><TR><TD>5</TD><TD>6-2</TD><TD>OL</TD><TD>238K</TD><TD>4.3</TD></TR><TR><TD>6</TD><TD>7-2</TD><TD>OL</TD><TD>200K</TD><TD>43K</TD></TR><TR><TD>7</TD><TD>8-2</TD><TD>OL</TD><TD>8.45M</TD><TD>43K</TD></TR><TR><TD>8</TD><TD>1-3</TD><TD>10.57K</TD><TD>10.56K</TD><TD>10.72K</TD></TR><TR><TD>9</TD><TD>2-3</TD><TD>3M</TD><TD>3M</TD><TD>248K</TD></TR><TR><TD>10</TD><TD>4-3</TD><TD>4.1K</TD><TD>4.1K</TD><TD>6.8M</TD></TR><TR><TD>11</TD><TD>5-3</TD><TD>6.76M</TD><TD>7.33M</TD><TD>223K</TD></TR><TR><TD>12</TD><TD>6-3</TD><TD>6.56M</TD><TD>3.22M</TD><TD>41.1K</TD></TR><TR><TD>13</TD><TD>7-3</TD><TD>6.5M</TD><TD>3.18M</TD><TD>213K</TD></TR><TR><TD>14</TD><TD>8-3</TD><TD>6.7M</TD><TD>6.72M</TD><TD>216K</TD></TR><TR><TD>15</TD><TD>7-6</TD><TD>38.3K</TD><TD>38.2K</TD><TD>255K</TD></TR><TR><TD>16</TD><TD>6-7</TD><TD>38.3K</TD><TD>38.37K</TD><TD>248K</TD></TR></TBODY></TABLE><P>&nbsp;</P><P>I want to know what caused the CAN chip to be damaged and what I can do to make a more in-depth confirmation.</P> Mon, 06 Sep 2021 01:47:32 GMT https://community.nxp.com/t5/Digital-Signal-Controllers/PCA82C250-damage/m-p/1335088#M2241 lizhaodai 2021-09-06T01:47:32Z Re: PCA82C250 damage https://community.nxp.com/t5/Digital-Signal-Controllers/PCA82C250-damage/m-p/1335208#M2243 <P>Dear Lizhaodai,</P> <P>could you please confirm, that the&nbsp;<SPAN>PCA82C250 were purchased from one of our authorized distributors? Please see this <A href="https://www.nxp.com/support/sample-and-buy/distributor-network:DISTRIBUTORS" target="_self">link</A> for a list of our authorized distributors.</SPAN></P> <P>With Best Regards,</P> <P>Jozef</P> Mon, 06 Sep 2021 07:55:46 GMT https://community.nxp.com/t5/Digital-Signal-Controllers/PCA82C250-damage/m-p/1335208#M2243 JozefKozon 2021-09-06T07:55:46Z