Controller offers high level of integration and performance in a single chip solution

The Texas Instruments UCD3138xA is a digital power supply controller offering high levels of integration and performance in a single chip solution. The device offers 128kB of program flash memory in comparison to 32kB in UCD3138A. It also provides additional options for communication such as SPI and a second I2C/PMBus port. The availability of of program Flash memory in multiple 32kB banks enables designers to implement dual images of firmware in the device and provides the option to execute from either of the banks using appropriate algorithms. It also creates the unique opportunity for the processor to load a new program and subsequently execute that program without interrupting power delivery. This feature allows the end user to add new features to the power supply in the field while eliminating any down-time required to load the new program. The flexible nature of the product family makes it suitable for a wide variety of power conversion applications. In addition, multiple peripherals inside the device have been specifically optimised to enhance the performance of AC/DC and isolated DC-DC applications and reduce the solution component count in the IT and network infrastructure space. The family is a fully programmable solution offering customers complete control of their application, along with ample flexibility for many solutions. Topology support has been optimised for voltage mode and peak current mode controlled phase shifted full bridge, single and dual phase PFC, bridgeless PFC, hard switched full bridge and half bridge, active clamp forward converter, two switch forward converter and LLC half bridge and full bridge.