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Smart Power Switches Forum Discussions

reshmi_garg
Level 1
First question asked Welcome!
Level 1

Hi Team,

The series resistor recommended for IN pin and status pin is 4.7K ohm for VDD of 5V. Could you provide a reference for the calculation so that the resistor can be tweaked as per the application.

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G_Anshika
Moderator
Moderator 100 replies posted 50 solutions authored 100 sign-ins
Moderator

Hello,                                                                                                         

Thank you for posting on Infineon Community.

For Rin calculations , please refer to the datasheet Page 17. To calculate the value, you should know the maximum voltage level  of the microcontroller .

G_Anshika_1-1657715187408.png


Please refer to below image to have the better understanding of how current is flowing:

G_Anshika_0-1658225533999.png

 

For Rstatus resistor, I status max is 5 mA ( in Datasheet, Page 8, Section 4.1 ,Table 2). Keeping voltage as 5 V ,and taking current as per the application but below 5mA, you can design the Rstatus. 

Please let me know if you need any help.

Thanks and Regards,
Anshika

 

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1 Reply
G_Anshika
Moderator
Moderator 100 replies posted 50 solutions authored 100 sign-ins
Moderator

Hello,                                                                                                         

Thank you for posting on Infineon Community.

For Rin calculations , please refer to the datasheet Page 17. To calculate the value, you should know the maximum voltage level  of the microcontroller .

G_Anshika_1-1657715187408.png


Please refer to below image to have the better understanding of how current is flowing:

G_Anshika_0-1658225533999.png

 

For Rstatus resistor, I status max is 5 mA ( in Datasheet, Page 8, Section 4.1 ,Table 2). Keeping voltage as 5 V ,and taking current as per the application but below 5mA, you can design the Rstatus. 

Please let me know if you need any help.

Thanks and Regards,
Anshika

 

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