UCC28512DW
Advanced PFC/PWM combination controllers in 20-pin SOIC format
Manufacturer： ['uni', 'analog-devices', 'ti', 'unitrode', 'rochester']
series introduction
# UCC28512DW Product Series Introduction
## 1. Overview
The UCC28512DW is a highly advanced and versatile integrated circuit (IC) product series designed specifically for power management applications. It is developed by Texas Instruments, a renowned leader in the semiconductor industry, and is engineered to meet the demanding requirements of modern power supply systems. This product series offers a comprehensive solution for power factor correction (PFC) and related functions, enabling efficient and reliable operation of various electrical and electronic devices.
## 2. Key Features
### 2.1 Power Factor Correction
- **High Power Factor**: The UCC28512DW is capable of achieving a very high power factor, typically greater than 0.95. This means that it can effectively reduce the reactive power in the electrical system, resulting in more efficient use of electrical energy. By improving the power factor, it helps to minimize the stress on the power grid and reduces energy losses, making it an ideal choice for energy - conscious applications.
- **Active PFC Control**: It employs an active power factor correction technique, which continuously monitors and adjusts the input current waveform to match the input voltage waveform. This active control mechanism ensures stable and accurate power factor correction under a wide range of input voltage and load conditions.
### 2.2 Wide Input Voltage Range
- **Flexible Operation**: The product series can operate over a wide input voltage range, typically from 85V to 265V AC. This wide range makes it suitable for use in different regions around the world, where the mains voltage may vary. Whether it is a low - voltage input in some countries or a high - voltage input in others, the UCC28512DW can adapt and provide consistent performance.
### 2.3 High Efficiency
- **Low Power Loss**: With its advanced circuit design and optimized control algorithms, the UCC28512DW minimizes power losses during operation. This high efficiency not only reduces energy consumption but also helps to keep the device cool, which in turn extends the lifespan of the components and improves the overall reliability of the power supply system.
### 2.4 Protection Features
- **Over - Voltage Protection (OVP)**: The UCC28512DW is equipped with over - voltage protection circuitry. In case the output voltage exceeds a predefined safe level, the OVP mechanism will quickly activate to prevent damage to the connected load and the IC itself.
- **Over - Current Protection (OCP)**: It also features over - current protection. When the current flowing through the device exceeds a certain threshold, the OCP function will limit the current or shut down the device to avoid overheating and component failure.
- **Under - Voltage Lockout (UVLO)**: The UVLO feature ensures that the device only operates when the input voltage is within a safe and stable range. If the input voltage drops below the specified level, the device will automatically shut down to prevent improper operation and potential damage.
### 2.5 Easy to Implement
- **Simple External Circuit**: The UCC28512DW has a relatively simple external circuit requirement. It comes with a well - defined pin configuration and clear application guidelines, which makes it easy for engineers to integrate into their power supply designs. This simplicity reduces the design time and cost, especially for small - to - medium - scale power supply projects.
## 3. Applications
### 3.1 Switch - Mode Power Supplies (SMPS)
- **Desktop Computers**: In desktop computer power supplies, the UCC28512DW can be used to improve the power factor and efficiency. By reducing the reactive power, it helps to lower the overall power consumption of the computer, which is beneficial for both the user's electricity bill and the environment.
- **Server
Images for reference
20-SOIC 0.295
20-SOIC 0.295
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