4 ms·

I hope there are provisions in the EU law for not following the spirit of it? It seems incredulous that Apple will allow you to hook up any of their iPads and

I hope there are provisions in the EU law for not following the spirit of it? It seems incredulous that Apple will allow you to hook up any of their iPads and MacBooks with any sort of USB-C cable, but are seemingly going to limit iPhones to MFi certified ones. A MacBook will charge at 100W while an iPhone is what, 35W on some of them, 20W on the others? Also, limiting transfer speeds is just ridiculous as well. If a janky cable is going to be dangerous, it's going to be on the charging side of things, not from transferring data at USB-3 speeds.

f_devd 4y ago
I agree, although power is also quite well managed in USB PD since both devices know what is supposed to come in, the cheapest chip that I found from TI[0] has: > Integrated reverse current protection, undervoltage protection, overvoltage protection, and slew rate control for both 20-V/5-A power paths when configured to Sink > Integrated undervoltage protection, overvoltage protection, and current limiting for inrush current protection for both 20-V/5-A power paths when configured to Source Unless they really cheaped out on the charging chip there should be no reason to restrict it. [0]: https://www.ti.com/product/TPS25750#features https://www.ti.com/product/TPS25750#features
- gruez 4y ago
  >the cheapest chip that I found from TI[0] has: >Unless they really cheaped out on the charging chip there should be no reason to restrict it. I'm not an expert on semiconductor market segments, but it's possible that TI occupies the high end segment, so even their cheapest chips are feature packed. Therefore whatever the cheapest chips they put out isn't really a lower bound in terms of quality. You could still have random chip makers from china that make even worse chips.
  - f_devd 4y ago
    True, you can probably get worse chips for s better price from somewhere but these aren't particularly expensive for the devices Apple makes.
benj111 4y ago
surely it would run foul of advertising standards. if its advertised as usb 3 compliant, then it should be. instead its just mfi compliant, which isnt usb.

f_devd 4y ago

I agree, although power is also quite well managed in USB PD since both devices know what is supposed to come in, the cheapest chip that I found from TI[0] has: > Integrated reverse current protection, undervoltage protection, overvoltage protection, and slew rate control for both 20-V/5-A power paths when configured to Sink > Integrated undervoltage protection, overvoltage protection, and current limiting for inrush current protection for both 20-V/5-A power paths when configured to Source Unless they really cheaped out on the charging chip there should be no reason to restrict it. [0]: https://www.ti.com/product/TPS25750#features https://www.ti.com/product/TPS25750#features

gruez 4y ago
>the cheapest chip that I found from TI[0] has: >Unless they really cheaped out on the charging chip there should be no reason to restrict it. I'm not an expert on semiconductor market segments, but it's possible that TI occupies the high end segment, so even their cheapest chips are feature packed. Therefore whatever the cheapest chips they put out isn't really a lower bound in terms of quality. You could still have random chip makers from china that make even worse chips.
- f_devd 4y ago
  True, you can probably get worse chips for s better price from somewhere but these aren't particularly expensive for the devices Apple makes.

benj111 4y ago

surely it would run foul of advertising standards. if its advertised as usb 3 compliant, then it should be. instead its just mfi compliant, which isnt usb.