https://community.nxp.com/t5/Power-Management/TJA1020-Master-Resistor/m-p/1690769#M2825 <P>Hi</P><P>We are using TJA1020 in our design and I want to know how to calculate the range of R_Master. In AN00093 page 27, there is an equation for this (picture is attached). I need to know why the term "Rs*Leakage" is positive, and also what is Rs = 300kohm? I didn't find it in datasheet.</P><P>BR</P> Sun, 23 Jul 2023 07:04:54 GMT Mahdi79 2023-07-23T07:04:54Z https://community.nxp.com/t5/Power-Management/TJA1020-Master-Resistor/m-p/1690769#M2825 <P>Hi</P><P>We are using TJA1020 in our design and I want to know how to calculate the range of R_Master. In AN00093 page 27, there is an equation for this (picture is attached). I need to know why the term "Rs*Leakage" is positive, and also what is Rs = 300kohm? I didn't find it in datasheet.</P><P>BR</P> Sun, 23 Jul 2023 07:04:54 GMT https://community.nxp.com/t5/Power-Management/TJA1020-Master-Resistor/m-p/1690769#M2825 Mahdi79 2023-07-23T07:04:54Z https://community.nxp.com/t5/Power-Management/TJA1020-Master-Resistor/m-p/1690995#M2827 <P>ILEAK = leakage current from LIN bus to ground (e.g. plug leakage current)</P><P>A LIN bus leakage current to ground of ILEAK £ 10 mA per unsupplied node is expected.</P><P><EM>R</EM><EM>S=300K&nbsp; </EM>In a LIN network the master resistor RMASTER (Ref. 2) and the slave resistors RSLAVE</P><P>(Ref. 2) are accurately defined by the LIN standard&nbsp;</P> Mon, 24 Jul 2023 05:18:26 GMT https://community.nxp.com/t5/Power-Management/TJA1020-Master-Resistor/m-p/1690995#M2827 guoweisun 2023-07-24T05:18:26Z