https://www.aliexpress.com/item/PL2303- ... .57.OiruJX
It says "500mA self recovery fuse for protection". Which overcurrent? I didn't see a mention of that in the PL2303HX data sheets.
It seems to have genuine PL2303HX - telling by the driver and Prolific checker program.
The seller's page has changed (YP-01 to D-SUN), but the original page had pretty much this text:
Also, how much current do I dare to draw from the 3.3V pin?Features:
Adopt imported controller RS232 TTL,which can stabilize the flash with high speed
500mA self recovery fuse for protection
Two data transmission indicator can monitor data transfer status in real time
Reserve 3.3V and 5V pin interface,easy for the DDWRT of different voltage system that need power
The entire board is coated by high quality transparent heat-shrinkable sleeve,making the PCB in insulation state from outside,
so that the board won\'t burnt down by material short cut.
Electrostatic package,insures the board will not be damaged before use
Support WIN7 system
The PL3203HX data sheets specify 150 mA, but somewhere else there was some talk that one can draw nearly 400 mA, but the voltage drops to 3.0V.
And has anyone come up with a good explanation, why even the basic numbers - like what's the RxD/TxD-levels are not usually mentioned on the sellers' pages?