4 ms·
That worked when the limit was 500 mA.
by klodolph 4y ago
That worked when the limit was 500 mA.
- kevin_thibedeau 4y agoThe limit was 150mA on connection then 500mA after enumeration. A compliant USB 1.0 device had to conform with a variable load 25 years ago just as much as as today's do.
- klodolph 4y agoYou definitely misunderstand. USB-C now provides upwards of 5A at 48V. 500mA can be carried down a 24 gauge wire, but 5A needs something more like 14 gauge. How do you protect a user from using the wrong cable? Answer—you put a microchip in the cable so it can be identified.