An AC-DC wall-charger interface IC for implementing the Quick Charge 2.0 protocol from Qualcomm has been developed by Power Integrations.
Launched earlier this year, this protocol is claimed to enable users to charge mobile devices up to 75 percent faster than when using conventional technology.
When used in combination, the CHY100 detects commands from a Quick Charge 2.0-enabled device, such as a cellphone handset, and adjusts the output of the AC-DC wall charger to enable increased power delivery to the device’s battery.
If used with a powered device without Quick Charge 2.0 capability, the charger automatically disables the higher-voltage/higher-power capability to ensure safe operation.
The company advises that tests have confirmed that smartphones with high-capacity batteries can be fully charged in as little as one hour using this technology – an significant improvement from the four-hour charging cycles characteristic of conventional fixed-voltage chargers.
Abid Hussain, director of product management at Qualcomm said:
As devices become increasingly power-hungry, OEMs have responded by designing in larger, longer-lasting batteries. Unfortunately, the limited power-delivery capabilities of standard wall chargers has led to longer charge times, resulting in increased downtime for users. Qualcomm’s Quick Charge initiative helps resolve the charging bottleneck, and we are delighted to be a part of the solution.”
The CHY100 is suitable for battery chargers for smartphones, tablets, netbooks, digital cameras and Bluetooth accessories as well as USB power output ports.
Power Integrations
