UCC2813PWTR-3

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The UCC2813PWTR-3 is a high-performance, simple-to-use, single- stage power factor correction (PFC) controller designed for controlling Power Factor Correction (PFC) in switch-mode power supplies. This device provides an easy-to-use solution for lighting applications, power conversion systems, motor drives, and other applications that require a wide range of AC input current and output power levels. The UCC2813PWTR-3 can be used as an active PFC controller, as well as an active converter forrectifier feedback control.

Application Field

The UCC2813PWTR-3 can be used in a variety of applications, from low-power to high-power applications. The device is ideal for controlling low-power SMPS designs, such as those found in LED drivers, CFLs, and LED lighting systems. It is also suitable for controlling medium-power applications, such as incandescent lighting, and is well-suited for high-power applications, such as energy-saving uses and renewable energy sources. Furthermore, the device can be used as an active PFC controller as well as active rectifier feedback control, allowing it to be used in low-to-high current applications.

Working Principle

The UCC2813PWTR-3 is a single-stage power factor correction (PFC) controller for controlling switch-mode power supplies (SMPS). The device is designed to continuously correct the power factor in the input, thereby improving the efficiency of the power supply. A power-factor control loop compensates for voltage variations in the input as well as differences between the input\'s current and voltage waves. The power-factor control loop also maintains the same output voltage even under dynamic loads. Once the power factor has been regulated, the UCC2813PWTR-3 controls the output voltage and current by modulating the switch-mode converter. The device also has an optional overvoltage protection (OVP) feature to protect the device and load from overvoltage conditions.

To protect the UCC2813PWTR-3, an over-temperature protection (OTP) feature is included in the device. This feature prevents the device from overheating if the illuminance or temperature conditions increase suddenly. Additionally, the device has a diagnostics feature that monitors the open loop voltage and full-wave rectified line current waveforms. This feature allows the device to detect any anomalies, such as hardware failures or abnormal waveforms, and can be used to alert the user if the device is operating outside its normal specifications.

Conclusion

The UCC2813PWTR-3 is a high-performance, single-stage power factor correction (PFC) controller designed for controlling switch-mode power supplies (SMPS). The device is ideal for controlling a variety of low- to high-power applications, from LED drivers, CFLs, and LED lighting systems to incandescent lighting and energy-saving uses. The device continuously corrects the power factor in the input and modulates the switch-mode converter to control output voltage and current. Additional safety features, such as overvoltage protection (OVP) and over-temperature protection (OTP), are also provided on the device. All these features make the UCC2813PWTR-3 a reliable and cost-effective Power Factor Correction solution.

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