UCC2813PWTR-5G4

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UCC2813PWTR-5G4 is an advanced current mode controller specially designed for high performance offline Switch Mode Power Supply (SMPS) applications. It integrates a lowside protected MOSFET and a precision current sensing circuit. It is an ideal power management device with its wide input voltage range, small size and high efficiency. In addition, it offers comprehensive protection features and cycle-by-cycle current limit protection, necessary for today’s demanding power applications.UCC2813PWTR-5G4 is classified as DC DC Switching Controllers under PMIC (Power Management Integrated Circuit) and Voltage Regulators family. It is used in both offline and DC-DC converter applications, such as Ferro-Resonant, Forward, Flyback, ZVS, Boost and Buck, etc. UCC2813PWTR-5G4 is an advanced current mode controller which primarily works on the principle of current mode control. Current mode control advantages include fast transients, superior line and load regulation, and cycle-by-cycle over-current (OCR) protection.The UCC2813PWTR-5G4 consists of several main building blocks, including a power switch, a precision current sense resistor, a voltage divider network, and a current comparator. The main components of the device work together in order to achieve power conversion. To begin, the power switch is used to regulate the flow of power to the load. It is supported by the voltage divider network, which provides the reference voltage for the current comparator to monitor the current level of the load. Along with that, the precision current sense resistor is employed to measure the load current. The current comparator compares the voltage point of the voltage divider network with the voltage across the current sense resistor and generates the power switch drive signal for the power switch. A MOSFET drive is also created which is used to drive the power switch.The drive signal from the current comparator is compared to the reference voltage to terminate the switching cycle. It is also used as a safety feature to monitor the current level of the load and provide over-current protection when necessary. UCC2813PWTR-5G4 also has an adjustable hysteresis capability which allows the device to be used in a wide range of applications with varying load levels.UCC2813PWTR-5G4 is an ideal power management device with its lowside-protected high-performance power switch, comprehensive protection features, cycle-by-cycle current limit protection, and its wide input voltage range. The device is well suited for use in both offline and DC-DC converter applications with its small size, high efficiency operation and adjustable hysteresis. Furthermore, UCC2813PWTR-5G4 has many advantages over other DC-DC converter controllers, such as improved current-limiting accuracy, reduced power dissipation, better output ripple and load regulation, and reduced over-current generation. When used correctly, UCC2813PWTR-5G4 is an effective device to provide efficient and reliable power conversion, making it an ideal choice for a variety of power applications.

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