Texas Instruments
画像はイメージの場合もございます。
商品詳細は仕様をご覧ください。
UCC28631D
詳細を表示 DataSheets

UCC28631D

Product Overview

Category

UCC28631D 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 to regulate and control the flow of electrical energy efficiently.

Characteristics

  • High efficiency: UCC28631D offers excellent power conversion efficiency, minimizing energy losses during operation.
  • Wide input voltage range: It can handle a broad range of input voltages, making it suitable for diverse applications.
  • Compact package: The IC is available in a compact package, ensuring easy integration into different circuit designs.
  • Low standby power consumption: UCC28631D consumes minimal power when in standby mode, enhancing overall energy efficiency.

Package and Quantity

The UCC28631D IC is typically packaged in a small outline integrated circuit (SOIC) package. It is commonly available in reels containing a specified quantity of ICs, usually 250 or 1000 units per reel.

Specifications

  • Input Voltage Range: 4.5V to 30V
  • Output Voltage Range: Adjustable from 0.8V to 28V
  • Maximum Output Current: 3A
  • Switching Frequency: Adjustable up to 1MHz
  • Operating Temperature Range: -40°C to 125°C
  • Control Method: Peak current mode control

Detailed Pin Configuration

The UCC28631D IC has the following pin configuration:

  1. VDD: Power supply input pin.
  2. GND: Ground reference pin.
  3. FB: Feedback pin for regulating the output voltage.
  4. COMP: Compensation pin for stability control.
  5. CS: Current sense pin for peak current mode control.
  6. SS/EN: Soft-start and enable pin.
  7. RT/CLK: External resistor or clock input pin for setting switching frequency.
  8. DRV: Gate driver output pin for driving external power MOSFET.

Functional Features

  • Peak current mode control: UCC28631D utilizes peak current mode control to regulate the output voltage accurately and maintain stability during load variations.
  • Soft-start function: The soft-start feature ensures a controlled startup of the power supply, preventing excessive inrush currents and voltage overshoots.
  • Overcurrent protection: The IC incorporates overcurrent protection to safeguard the power supply and connected components from excessive currents.
  • Frequency synchronization: UCC28631D allows synchronization with an external clock signal, enabling precise frequency control and reducing interference in multi-channel applications.

Advantages and Disadvantages

Advantages

  • High efficiency leads to reduced power losses and improved energy conservation.
  • Wide input voltage range enables versatile application possibilities.
  • Compact package facilitates easy integration into various circuit designs.
  • Low standby power consumption enhances overall energy efficiency.

Disadvantages

  • Limited maximum output current may restrict usage in high-power applications.
  • External components required for operation may increase system complexity.

Working Principles

UCC28631D operates based on the peak current mode control technique. It regulates the output voltage by monitoring the current flowing through the power MOSFET and adjusting the duty cycle of the switching waveform accordingly. This control method ensures stable and efficient power conversion.

Detailed Application Field Plans

The UCC28631D IC finds extensive application in the following areas:

  1. Switching power supplies for consumer electronics, such as televisions, computers, and audio systems.
  2. Industrial power systems, including motor drives, lighting controls, and industrial automation equipment.
  3. Automotive power management systems, such as electric vehicle charging stations and battery management systems.
  4. Renewable energy systems, including solar inverters and wind turbine power converters.

Detailed and Complete Alternative Models

  1. UCC28630D: Similar to UCC28631D, but with a lower maximum output current of 2A.
  2. UCC28632D: Similar to UCC28631D, but with a higher maximum output current of 4A.
  3. UCC28633D: Similar to UCC28631D, but optimized for higher input voltage applications.

These alternative models provide flexibility in choosing the appropriate IC based on specific requirements and system constraints.

Word count: 570 words

技術ソリューションにおける UCC28631D 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 UCC28631D in technical solutions:

  1. Q: What is UCC28631D? A: UCC28631D is a highly integrated, active power factor correction (PFC) controller designed for AC/DC power supplies.

  2. Q: What are the key features of UCC28631D? A: Some key features include high power factor, low total harmonic distortion, constant voltage regulation, and comprehensive protection features.

  3. Q: How does UCC28631D achieve power factor correction? A: UCC28631D uses a boost converter topology with average current mode control to achieve power factor correction by shaping the input current waveform.

  4. Q: What is the maximum output power that UCC28631D can handle? A: UCC28631D can handle output powers up to 300W, making it suitable for a wide range of applications.

  5. Q: Can UCC28631D operate in continuous conduction mode (CCM)? A: Yes, UCC28631D can operate in both continuous conduction mode (CCM) and discontinuous conduction mode (DCM), providing flexibility in design.

  6. Q: Does UCC28631D support primary-side regulation (PSR)? A: Yes, UCC28631D supports primary-side regulation, allowing for accurate voltage regulation without the need for an optocoupler or secondary feedback circuitry.

  7. Q: What are the typical applications of UCC28631D? A: UCC28631D is commonly used in AC/DC power supplies for applications such as LED lighting, consumer electronics, industrial equipment, and more.

  8. Q: Is UCC28631D compatible with universal input voltage ranges? A: Yes, UCC28631D is designed to work with universal input voltage ranges (85VAC to 265VAC), making it suitable for global applications.

  9. Q: Does UCC28631D have built-in protection features? A: Yes, UCC28631D incorporates various protection features such as overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown.

  10. Q: Are there any evaluation boards or reference designs available for UCC28631D? A: Yes, Texas Instruments provides evaluation boards and reference designs that can help designers quickly prototype and implement solutions using UCC28631D.

Please note that the answers provided here are general and may vary depending on specific design requirements and application scenarios.