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UCC28051DG4
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UCC28051DG4 - English Editing Encyclopedia Entry

Product Overview

Category

UCC28051DG4 belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is commonly used in various power supply systems, such as switch-mode power supplies (SMPS), where it plays a crucial role in controlling and regulating the power flow.

Characteristics

  • UCC28051DG4 is a highly efficient and versatile IC that offers excellent performance in power management applications.
  • It provides precise control over voltage and current regulation, ensuring stable and reliable power delivery.
  • The IC is designed to operate in a wide range of input voltages, making it suitable for diverse power supply designs.
  • It incorporates advanced protection features to safeguard against overvoltage, overcurrent, and overtemperature conditions.
  • UCC28051DG4 is known for its low power consumption and high efficiency, contributing to energy-saving initiatives.

Package and Quantity

UCC28051DG4 is available in a compact and industry-standard SOIC-8 package. It is typically sold in reels containing a quantity of 250 units.

Specifications

The following are the key specifications of UCC28051DG4:

  • Input Voltage Range: 9V to 20V
  • Output Voltage Range: 0V to 15V
  • Maximum Output Current: 2A
  • Operating Temperature Range: -40°C to 125°C
  • Switching Frequency: 100kHz to 1MHz
  • Control Method: Voltage Mode Control
  • Protection Features: Overvoltage, Overcurrent, Overtemperature

Pin Configuration

The pin configuration of UCC28051DG4 is as follows:

  1. VDD - Power Supply Voltage
  2. COMP - Compensation Pin
  3. FB - Feedback Pin
  4. CS - Current Sense Pin
  5. GND - Ground
  6. RT/CT - Timing Components Pin
  7. OUT - Output Pin
  8. SS/TR/UVLO - Soft-Start, Tracking, and Undervoltage Lockout Pin

Functional Features

UCC28051DG4 offers the following functional features:

  1. Voltage Mode Control: The IC utilizes voltage mode control to regulate the output voltage accurately.
  2. Soft-Start Function: It incorporates a soft-start feature that gradually ramps up the output voltage during startup, preventing excessive inrush current.
  3. Protection Mechanisms: UCC28051DG4 includes built-in protection mechanisms such as overvoltage, overcurrent, and overtemperature protection, ensuring safe operation under various conditions.
  4. Wide Input Voltage Range: The IC can operate within a wide input voltage range, providing flexibility in power supply designs.
  5. High Efficiency: UCC28051DG4 is known for its high efficiency, minimizing power losses and maximizing energy conversion.

Advantages and Disadvantages

Advantages

  • Precise voltage regulation
  • Wide input voltage range
  • High efficiency
  • Integrated protection features
  • Compact package size

Disadvantages

  • Limited maximum output current (2A)
  • Requires external timing components for operation

Working Principles

UCC28051DG4 operates based on the voltage mode control technique. It compares the feedback voltage from the output with a reference voltage and adjusts the duty cycle of the internal PWM controller accordingly. This control mechanism ensures accurate regulation of the output voltage.

During startup, the soft-start function gradually increases the duty cycle, allowing a controlled rise in the output voltage. The IC continuously monitors the output voltage, current, and temperature, activating the protection mechanisms if any parameter exceeds the predefined limits.

Application Field Plans

UCC28051DG4 finds extensive application in various power supply systems, including but not limited to:

  1. Switch-mode power supplies (SMPS)
  2. AC-DC converters
  3. DC-DC converters
  4. LED lighting systems
  5. Industrial power supplies

Alternative Models

For users seeking alternative options, the following ICs can be considered:

  1. UCC28051DG4R: Similar specifications and features as UCC28051DG4, but available in a different package (SOIC-8).
  2. UCC28051EVM-001: Evaluation module for UCC28051DG4, providing a convenient platform for testing and prototyping.

In conclusion, UCC28051DG4 is a highly efficient and versatile integrated circuit designed for power management applications. With its precise control, wide input voltage range, and advanced protection features, it offers reliable and stable power delivery. Its compact package size and high efficiency make it an ideal choice for various power supply designs.

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技術ソリューションにおける UCC28051DG4 の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of UCC28051DG4 in technical solutions:

  1. Q: What is UCC28051DG4? A: UCC28051DG4 is a pulse width modulation (PWM) controller IC used for controlling power converters in various applications.

  2. Q: What are the key features of UCC28051DG4? A: Some key features include integrated high-voltage startup, cycle-by-cycle current limit, adjustable switching frequency, and soft-start functionality.

  3. Q: What types of power converters can UCC28051DG4 be used in? A: UCC28051DG4 can be used in various power converter topologies such as flyback, forward, and half-bridge converters.

  4. Q: How does UCC28051DG4 help in achieving high power conversion efficiency? A: UCC28051DG4 provides precise control over the power converter's switching frequency and duty cycle, allowing for efficient power transfer.

  5. Q: Can UCC28051DG4 handle high input voltages? A: Yes, UCC28051DG4 is designed to handle high input voltages up to 600V, making it suitable for applications with high voltage requirements.

  6. Q: Does UCC28051DG4 have protection features? A: Yes, UCC28051DG4 includes features like overvoltage protection, undervoltage lockout, and thermal shutdown to protect the power converter and system.

  7. Q: How can I adjust the switching frequency of UCC28051DG4? A: The switching frequency can be adjusted by changing the value of an external resistor connected to the RT pin of UCC28051DG4.

  8. Q: Can UCC28051DG4 operate in a wide temperature range? A: Yes, UCC28051DG4 has a wide operating temperature range of -40°C to 125°C, making it suitable for various industrial and automotive applications.

  9. Q: Is UCC28051DG4 available in different package options? A: Yes, UCC28051DG4 is available in different package options such as SOIC-8 and PDIP-8, providing flexibility for different PCB layouts.

  10. Q: Where can I find more information about the application of UCC28051DG4? A: You can refer to the datasheet and application notes provided by the manufacturer, Texas Instruments, for detailed information on using UCC28051DG4 in technical solutions.

Please note that these answers are general and may vary depending on specific application requirements.