Programmable USB-port power controllers support 12-W fast charging

August 13, 2013 // By Paul Buckley
Microchip has expanded the company's programmable USB port power controller portfolio with the three-member UCS100X family. 

The new power controllers offer advanced USB-based charging capabilities for designing host devices, such as laptops, tablets, monitors, docking stations and printers, as well as dedicated AC-DC power-supply and charging products, such as wall adapters.
The UCS1001-3, UCS1001-4 and UCS1002-2 are an expansion of Microchip's UCS1001 and UCS1002 series, offering higher current and priority charging for smartphones and tablets.  The UCS100X variants have also added support for active cables, such as the Apple Lightning connector, along with 12W charging.  The UCS1002-2 features a built-in current sensor that can report on the amount of charging current.  This allows a system to optimise its charging current and appropriately allocate power.  Additionally, the UCS100X can support future USB product designs via a flexible method for detecting and creating charging emulation profiles.  This allows designers to update their systems as new products are introduced to the market, while providing compatibility with a wider range of existing products.
The UCS1001-3, UCS1001-4 and UCS1002-2 come in a 20-pin QFN package, for $0.90 each (5,000). Design support is with the UCS1001-3/4 Evaluation Board (ADM00540, $24.99) and UCS1002-2 Evaluation Board (ADM00497, $90.00)