Other Parts Discussed in Thread: TINA-TI,
Tool/software: TINA-TI or Spice Models
When using the TPS22953 TINA model, the response to the SNS pin is not correct per data sheet. When the voltage at the SNS pin drops below the falling threshold, the switch should be turned off for the T(restart) time and the PG signal pulled low. The model correctly pulls PG low, but does not turn off the switch.
There was an earlier forum post on this from about a year ago, but it was not completed.
Attached is my TINA circuit file to show the issue. This was built by modifying the TINA reference design.
