UCC28061D

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The UCC28061D is an an integrated power factor correction (PFC) controller for lightweight AC/DC converters. This device offers the high power factor necessary for modern power supplies, along with the complex power-factor pre-correction of AC mains. The integrated pre-correction method reduces the need for external hardware, as well as minimizes the cost by removing the bulky EMI filter needed in the prior methods. Additionally, the active power factor correction of the UCC28061D provides improved power factor without significantly affecting the system efficiency. Furthermore, the inclusion of thermal shutdown protection and auto-reset capability helps ensure the health and longevity of the device by preventing damage due to overheating.

The UCC28061D is designed for cost-sensitive applications such as lighting, consumer electronics, and other low-power AC/DC converters. This device can provide single-stage continuous conduction mode boost PFC rectification and operates in critical-conduction mode. The hardware used in the UCC28061D consists of a low power switch, an opto-coupler, a voltage reference, and various other components. All of these components are integrated on a single chip to make the device as cost-efficient as possible.

The working principle of the UCC28061D is based on a single-stage PFC boost converter with peak current mode control. The controller senses the voltage at the primary side of the converter and ensures the high power factor by controlling the conduction angle of the switch on the secondary side. The PFC controller constantly monitors the current and voltage at the output of the converter and adjusts the voltage at the input accordingly. The input voltage is compared to a reference voltage, and the current mode control loop is closed by a proportional/integral gain. This allows for the maximum power transfer to take place at a predetermined accuracy.

The UCC28061D also features several safety and protection functions, including overvoltage, overcurrent and thermal protection. The overvoltage protection prevents damage to the converter and load due to any unexpected high voltage on the input, whereas overcurrent protection ensures that the current does not exceed the maximum limit of the converter. The thermal protection function monitors the temperature of the converter and shuts down the system, in order to prevent any damage due to excessive heat.

In conclusion, the UCC28061D power factor correction (PFC) controller is an integrated device that offers an efficient and cost-effective solution to AC/DC power conversion. This device provides a high power factor without impacting the system efficiency and is capable of responding quickly to various input conditions. Additionally, the inclusion of protection functions like overvoltage, overcurrent and thermal protection prolongs the life of the device. The UCC28061D is ideal for applications such as lighting, consumer electronics, and other low-power AC/DC converters.

The specific data is subject to PDF, and the above content is for reference