Other Parts Discussed in Thread: TPS54622, TPS54623, TPS54620
Team,
Section 8.3.8 of the TPS54020 datasheet lists the equations to calculate the start/stop input voltage. However, the calculations do not result in the resistor values shown in the example on page 24 using 7.5 V and 7.1 V for the start and stop voltages.
Looking at the EVM user's guide section 1.3.3, Ih and and Venrising are listed as different values. Doing a TINA simulation, it appears the datasheet recommendations are more accurate than the EVM user guide recommendations.
Datasheet:
EVM:
What is the recommended Ih value for doing the UVLO resistor calculations?
Thanks,
Phil