This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Hello,
Our customer would like to simulate LM5161 inverting buck boost operation.
Their requirement is Vin=+5V, Vout=-90V, Iout=10mA.
I simulated LM5161 Vin95V, Vout,5V, Iout=10mA on the webench and export the TINA-TI file.
Then I modified the TINA-TI file to inverting buck boost topology.
However, I couldn't simulate it as I expected.
webench_design_3474743_835.tsc
Can I simulate inverting buck boost topology by TINA-TI file which was exported from Webench?
If yes, could you please let me know the wrong point in attached TINA-TI file?
I appreciate it if you support this issue.
Best Regards,
Ryuji
Hi Ryuji,
It seems we cannot simulate inverting buck boost topology using LM5161 TINA-TI model because the internal nodes of the model are defined with respect to hard ground i.e 0V. Also the AGND pin is not modelled, as it is grounded through 1kOhms resistor internally.
Thanks & Regards,
Arpan Gupta