The CHY100 from Power Integrations is an AC-DC wall-charger interface IC that enables designers of mobile devices to implement the Quick Charge 2.0 protocol from Qualcomm. Launched earlier this year, Quick Charge 2.0 enables users to charge mobile devices up to 75% faster than when using conventional technology.
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. 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. When plugged into a powered device without Quick Charge 2.0 capability, the CHY100 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 from the four-hour charging cycles characteristic of conventional fixed-voltage chargers.
The CHY100 is suitable for battery chargers for smartphones, tablets, netbooks, digital cameras and Bluetooth accessories as well as USB power output ports. Devices are available in SOIC-8 packaging and cost $0.22 each in 10K quantities.