Power Integrations has introduced the CHY100, an AC-DC wall-charger interface IC that enables designers of mobile devices to implement the Quick Charge 2.0 protocol from Qualcomm Technologies. Launched earlier this year, Quick Charge 2.0 enables users to charge mobile devices up to 75% faster than when using conventional technology, while maintaining backwards compatibility and interoperability with existing USB charging standards (USB BC1.2).
Used in combination with Power Integrations’ AC-DC switcher ICs, the CHY100 incorporates all the necessary elements required to add Quick Charge 2.0 functionality to AC-DC wall chargers. It detects commands from a Quick Charge 2.0-enabled device, such as a cell phone handset, and adjusts the output of the AC-DC wall charger to enable increased power delivery to the device’s battery.
When plugged into a powered device without Quick Charge 2.0 capability, the IC automatically disables the higher-voltage/higher-power capability to ensure safe operation. Tests confirm that smartphones with high-capacity batteries can be fully charged in as little as one hour using Quick Charge 2.0 – an impressive improvement over the four-hour charging cycles characteristic of conventional USB charging technology.
The CHY100 is suitable for battery chargers for smartphones, tablets, netbooks, digital cameras and Bluetooth accessories as well as USB power output ports. It is available in SOIC-8 packaging.
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