Table of Contents
Advertisement
7.3
USB glossary
The collection of designations in the USB area has in the meantime become very extensive and
can be confusing at first glance. In the following you will see a small simplified overview related
to charging device 6475 U.
Type (plug design)
The plug type describes the look of the plug and the technical options that can be implemented with it.
USB-A
USB-C
Table 3: Type (plug design)
Plug standard with connection assignments (technology within the plug)
The plug standard describes the maximum possible amperage.
USB 1.0
USB 2.0
USB 3.0
USB 3.1
Table 4: Plug standard with connection assignments
Protocols/charging technology
USB-BC 1.2
Power Delivery
Product manual 2CKA001473B5469
Possible for type USB-A and USB-C. Charging current maximum of 0.1 A
(0.5 W)
Possible for type USB-A and USB-C. Charging current maximum of 0.5 A
(2.5 W)
Possible for type USB-A and USB-C. Charging current maximum of 0.9 A
(4.5 W)
Possible for type USB-A and USB-C. Charging current maximum of 0.9 A
(4.5 W) without additional protocols
The battery charging technology can charge mobile devices with a higher
current in contrast to the standard of 0.9 A. Charging currents of up to 1.5 W
(7.5 W) are possible.
Devices that are to be charged via this technology also require USB 3.1.
With the PD charging technology the terminal device can be charged even
faster and the charger supplies greater capacity for larger devices, e.g. for
tablets.
PD operates only in teamwork with USB type-C cables and USB type-C
connections.
The participating devices exchange information about the charging voltage
and the amount of current that is to flow via the connection. This how the
device to be charged is supplied with the ideal amount of current. This may
require special cables with integrated chip.
PD comprises five charging profiles for different applications.
Profile1
■
– 5 / 2
– Corresponds to to the normal 10-watt chargers for smartphones and
mobile phones
– Conventional cable is sufficient
Profile2
■
– Maximum 12 V, 18 W
– Intended for power-hungry mobile phones and tablets
– Special charging cable necessary
Operation
│17
Advertisement
Table of Contents
