UCC2813N-0 Low-Power BiCMOS Current-Mode PWM Controller

The UCC2813N-0, part of Texas Instruments' UCC28C series, is a high-performance, low-power pulse width modulation (PWM) controller designed for a wide range of power supply applications. This integrated circuit (IC) is particularly suited for offline and DC-to-DC converter applications due to its robust feature set and efficient power management capabilities.

With its BiCMOS construction, the UCC2813N-0 combines the speed and accuracy of CMOS with the robustness and current handling capabilities of bipolar transistors. This results in a highly reliable and efficient controller that can manage power supplies in the most demanding environments. The device operates at a fixed frequency that can be programmed by the user, providing a stable and predictable switching pattern that is essential for maintaining power supply performance.

The UCC2813N-0 offers several protective features to ensure the longevity and safety of the power supply system. These include under-voltage lockout (UVLO) for both the startup and operating phases, ensuring that the controller only operates when the supply voltage is within an acceptable range. Additionally, the device provides over-current protection (OCP) by means of a current sense comparator that can trigger a shutdown if excessive current is detected.

Another key attribute of the UCC2813N-0 is its low startup and operating currents. This characteristic makes it an energy-efficient choice for applications where power conservation is crucial. The IC also includes a totem-pole output stage capable of driving a power MOSFET or IGBT directly, simplifying the design of the power stage.

The UCC2813N-0 comes in a variety of packages, including the 8-pin PDIP (Plastic Dual-In-Line Package), which is easy to handle and integrate into various PCB layouts. Its temperature range, stability, and robustness make it a versatile solution for power management in consumer electronics, telecommunications, and industrial systems.

Overall, the UCC2813N-0 from Texas Instruments stands out as a reliable, efficient, and feature-rich PWM controller that meets the stringent requirements of modern power supply design.