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littelfuse.com
W
ireless charging for smartphones and other
mobile devices is increasing, but charging cables
are unlikely to disappear completely anytime
soon. That's because wired charging offers significant
advantages over wireless charging for some users—
primarily because wired charging offers far greater
charging speed.
The USB Power Delivery (USB-PD) and USB-C
Connectors and Cable Assemblies specifications
developed by the USB Implementers Forum (USB-IF)
are central to the latest generation of wired charging
solutions. The USB Power Delivery Specification enables
the maximum functionality of USB by providing more
flexible power delivery and data over a single cable.
Fast chargers and cables compliant with USB-PD and
USB-C specifications can support charging power levels
up to 100W. Depending on the device involved, that
means that they can recharge a phone or other device
much faster than a wireless charger. A wired charger
with a long-enough cable also allows users to keep
interacting with their devices while they're recharging, a
significant advantage for the phone-addicted among us.
FAST CHARGING
Using USB-C Cables
PRESENTS PROBLEMS
Cable-to-device connections can
accumulate contaminants, causing them
to heat up quickly, which can easily
damage or destroy the cable and the
mobile device. The fix: better circuit design
with temperature monitoring.
TODD PHILLIPS | Littelfuse, Inc.
Littelfuse setP Digital
Temperature Indicator
