Part Number:TPS2557
Dear Sir/Madam,
I would like to check with you on resister value using at EN pin and FAULT pin.
- Based on IC specification is using 100Kohm but EVM using 10Kohm
- Circuit from IC specification.(using 100Kohm)
- Circuit from EVM. (using 10Kohm resistor)
If I do not used Fault pin and i isolated the resistor value for fault and EN pin. what value of R1 should i use for to pull up EN pin?
Any internal pull up for EN pin for TPS2557? if yes, what is the value?
I saw in datasheet that the Ien is max at 5uA. it my input is 5V, does that means I should put a < (5/5uA) = 1Mohm on EN pin?
Best regards,
kpk