Hello
I am sorry to bother you again.
My customer chosen TPS92314, but has questions about Vref again to fix their
final product's design goal.
Q1
Risns result from TPS92314 Calculation tools Rev 1.1 for non-isolated work-sheet
I think if IOUT were 100mA, RISNS should be 1.4ohm,
but calc result is 1.47 ohm.
Is it a bug?
The work sheet of 'isolated' page seems to be no problem.
Wold you please confirm?
Q2
How does Vref made in the BIAS& VREF block of data sheet p7,Fig13 ?
TPS92314 has internal reference voltage in the BIAS&VREF block as
1.21(MIN)/1.24V(TYP)/1.3V(MAX) which is used for VDLY as described
EC table in page4.
My (Customer's ) guess is Vref = 0.14V on data sheet p15 eq(2) is divided
from internal reference voltage 1.24V ( VDLY ),
...Is it correct?
Best Regards
