Supports 2 ports, capable of high-current fast charging

Microchip announced the dual-channel UCS2112 , a new family in its portfolio of programmable USB-port power controllers. This new port power controller features eight programmable continuous current limits ranging from 0.53 to 3.0 Amps on each port to enable high-current fast charging.

To increase and protect overall system uptime, it provides features such as integrated current monitoring, precision current limiting, charge allocation, and dynamic thermal management, and the UCS2112 enables designers to handle a variety of host devices in automotive, computing, education, and aviation applications, including laptops, tablets, monitors, docking stations, printers, as well as multi-port charging accessories and storage devices. This device can be flexibly configured to operate independently or in conjunction with a USB hub for the implementation of a charging system or a USB communication system.

Rich Simoncic, Vice President of Microchip’s Analog Power and Interface business unit, stated, “The USB charging sector is increasingly requiring high current capacity, primarily driven by demand in large phones and tablets based on high-capacity batteries.” He added, “Microchip’s UCS2112 not only provides the safety features necessary for these solutions but also features current monitoring and thermal management architectures to maximize system uptime and stability.”


To enhance user satisfaction, the UCS2112's dynamic thermal management function prevents shutdowns by lowering the current limit when thermal limits are reached, enabling charging even when other devices are completely stopped. Additionally, the UCS2112's integrated current monitor eliminates the need for external sensing resistors and provides an 'Attach Detect' signal to activate a host in an off or sleep state without relying on the main power supply. These current monitoring and allocation functions allow for the management of multiple charging devices and enable the maintenance of appropriate dynamic load current for the system, even with smaller power supplies.

Meanwhile, the UCS2112 adheres to the USB Industry Forum's USB Power Delivery policy and is compatible with various charging specifications, including USB-IF BC1.2.

Information about Microchip's USB hubs and devices can be found at http://www.microchip.com/USB-102615a .