Huawei caught the attention of a lot of people (mine included) with the very fast charging of the P30 Pro, which has a 40 W charger. Samsung decided to announce two chips that control the amount of energy that enters through the USB-C port and now promises 100 W, together with encryption to provide more security in communication: SE8A and MM101.
Yes, I know this will not be the first manufacturer in the world that speaks 100 W on a smartphone charger. Xiaomi has already commented on this in March this year, but has not yet said where it will appear for the first time or how it will do it. In the case of Samsung, even before showing the charging in a video, the South Korean company detailed how it will protect the gadget with a new chip.
The new silicon, with names of SE8A and MM101, are compatible with USB Power Delivery revision 3.0, which sends up to 20 volts with 5 amps in 20 mV steps – multiply voltage (volts) by current (amp) and we reach 100 W .
In addition to a lot of energy coming in (two and a half times more than what the P30 Pro does), the chips have encryption to avoid problems in the conversation of the data, since USB-C cables generally do not send only energy, but data and talk to the PC or smartphone on the other side.
The MM101 model is compatible with the AES standard and this ensures that the cable can be authenticated by the device, to receive more energy. You will not want a cable of doubtful origin and costing a tenth of the value, sending so much energy to a device as important as your smartphone, right?
The SE8A is the first to use the CC EAL5 +, which allows even the access keys to be stored on the chip itself, with the data encryption capability that travels on the cable – only that it needs a connected device that supports this type of security.
Translating: both cables can guarantee more safely that the energy that will be sent will not cause problems for the battery or the internal circuit of what is being charged. That would be pretty bad for the device.
Of the two, only MM101 is not yet in mass production. At the moment it is still in the testing phase of specific units. This means that a Galaxy Note 10 of life can bring a very fast and secure charger.
With information: Samsung.