The 1k resistor is not required at all for the auto-retry circuit for either part family (TPS2552/3, TPS2556/7, TPS2560/1). The 1k resistor can reduce the FAULTx sink current spike (from the EN capacitor) and also add some extra delay from FAULTx falling…
The datasheet states "The recommended 1% resistor range for R ILIM is 20 k Ω ≤ R ILIM ≤ 187 k Ω to ensure stability of the internal regulation loop."
This statement implies a loss of current limit accuracy and a non-ideal response to output overloading…
Hello RE,
Have a look at the TPS2552/3 (The "-1" version will latch off when the current limit is reached). Current limit can be set up to 1.7A.
Let me know if you think this will work?
Best Regards,
Adam Hoover
DLS Applications
"My application is to get an constant 5V@500mA current . Just like an USB port of the computers"
There seems to be a misunderstanding about USB power here. The TPS2552 sounds to be doing exactly what it is supposed to do, remembering of course that…
Other Parts Discussed in Thread: LM5050-1 , TPS2490 , TPS2552 Many times a power design will have multiple inputs. Diode ORing is the term used to allow automatic selection of the input source.
Usually the diode that is shown is just a representation…
Other Parts Discussed in Thread: TPS2540 , TPS2560 , TPS2552 , TPS2540A , TPS2541A , TPS2543 Hi All,
with DCP auto detect of TPS2540EVM CTL1,CTL2, CTL3 (0,x,1). Can I charge Ipod, Ipad and LG mobile from USB(or DC 5V) automaticly?
Thanks,
NT
Part Number: HD3SS3220 Hi Sir,
My customer is using HD3SS3220 in their wireless AP design.
They found they can only detect SS with USB dongle in one side. In the other side, they can only detect high speed.
DIR pin keep always high and doesn't change…
Hi Seong,
Please see below UL E169910 document, it shows "Temp Range" seems not shipping and storage temperature range.
We want to clarify why UL certificate temp range is different with TPS2000C operating junction temperature range. thanks!
QVGS2…
