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UCC28633DR
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UCC28633DR

Product Overview

Category

UCC28633DR belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This product is commonly used in various power supply systems, including but not limited to AC/DC converters, battery chargers, and LED drivers.

Characteristics

  • UCC28633DR is a highly efficient and versatile power management IC.
  • It offers excellent performance in terms of voltage regulation, current control, and power conversion efficiency.
  • The IC operates at high frequencies, enabling compact and lightweight power supply designs.
  • It incorporates advanced protection features to ensure safe operation under different load conditions.

Package

UCC28633DR is available in a small outline package (SOP) with eight pins. This package provides ease of integration into circuit boards and facilitates thermal dissipation.

Essence

The essence of UCC28633DR lies in its ability to efficiently regulate and convert electrical power, ensuring stable and reliable operation of various electronic devices.

Packaging/Quantity

UCC28633DR is typically sold in reels or tubes containing a specified quantity of ICs, such as 250 or 1000 units per reel/tube.

Specifications

  • Input Voltage Range: 85V - 265V AC
  • Output Voltage Range: Adjustable, depending on application requirements
  • Maximum Output Power: Up to 30W
  • Switching Frequency: Adjustable, typically ranging from 50kHz to 200kHz
  • Operating Temperature Range: -40°C to +125°C
  • Efficiency: High efficiency, typically above 90%

Detailed Pin Configuration

  1. VDD: Power supply input pin
  2. GND: Ground reference pin
  3. FB: Feedback pin for output voltage regulation
  4. COMP: Compensation pin for stability control
  5. CS: Current sense pin for current control
  6. SS/UVLO: Soft-start and undervoltage lockout pin
  7. EN/UVLO: Enable and undervoltage lockout pin
  8. VCC: Supply voltage input for internal circuitry

Functional Features

  • High-efficiency power conversion
  • Wide input voltage range for universal compatibility
  • Adjustable output voltage to meet specific application requirements
  • Comprehensive protection features, including overvoltage and overcurrent protection
  • Soft-start functionality for smooth power-up operation
  • Undervoltage lockout for enhanced system reliability

Advantages and Disadvantages

Advantages

  • High efficiency leads to reduced power consumption and heat generation.
  • Versatile and adaptable to various power management applications.
  • Compact package size enables space-saving designs.
  • Advanced protection features ensure safe and reliable operation.

Disadvantages

  • Requires careful consideration of external components for optimal performance.
  • May require additional circuitry for specific application requirements.
  • Limited output power compared to some higher-power ICs.

Working Principles

UCC28633DR operates based on a pulse-width modulation (PWM) control scheme. It regulates the output voltage by adjusting the duty cycle of the switching waveform. The IC continuously monitors the feedback signal and adjusts the duty cycle accordingly to maintain the desired output voltage. This control mechanism ensures efficient power transfer from the input to the output while maintaining stable voltage regulation.

Detailed Application Field Plans

UCC28633DR finds extensive application in various power supply systems, including:

  1. AC/DC converters for consumer electronics, such as televisions, computers, and audio equipment.
  2. Battery chargers for portable devices like smartphones, tablets, and laptops.
  3. LED drivers for lighting applications, including residential, commercial, and automotive lighting.

Detailed and Complete Alternative Models

  1. UCC28630DR: Similar to UCC28633DR but with a lower maximum output power rating.
  2. UCC28631DR: Similar to UCC28633DR but with a higher maximum output power rating.
  3. UCC28632DR: Similar to UCC28633DR but optimized for specific applications, such as LED lighting.

These alternative models offer similar functionality and characteristics, allowing designers to choose the most suitable option based on their specific requirements.

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10個與UCC28633DR在技術方案中應用相關的常見問題與解答

Sure! Here are 10 common questions and answers related to the application of UCC28633DR in technical solutions:

  1. Q: What is UCC28633DR? A: UCC28633DR is a highly integrated flyback controller IC designed for offline power supplies.

  2. Q: What are the key features of UCC28633DR? A: Some key features include primary-side regulation, constant voltage/constant current control, high efficiency, and low standby power consumption.

  3. Q: What is primary-side regulation (PSR)? A: Primary-side regulation refers to the control of output voltage or current directly on the primary side of the transformer, eliminating the need for an optocoupler or secondary feedback circuitry.

  4. Q: What are the typical applications of UCC28633DR? A: UCC28633DR is commonly used in AC/DC power supplies for applications such as adapters, chargers, LED lighting, and white goods.

  5. Q: How does UCC28633DR achieve high efficiency? A: UCC28633DR utilizes advanced control techniques like valley switching and frequency foldback to optimize power transfer and minimize losses.

  6. Q: Can UCC28633DR support both constant voltage and constant current outputs? A: Yes, UCC28633DR can be configured to provide either constant voltage or constant current output, making it suitable for various load types.

  7. Q: Does UCC28633DR have built-in protection features? A: Yes, UCC28633DR offers comprehensive protection features including overvoltage protection, overcurrent protection, and thermal shutdown.

  8. Q: What is the standby power consumption of UCC28633DR? A: UCC28633DR has a low standby power consumption of typically less than 100mW, helping to meet energy efficiency standards.

  9. Q: Can UCC28633DR operate in a wide input voltage range? A: Yes, UCC28633DR can operate in a wide input voltage range, typically from 85VAC to 265VAC.

  10. Q: Is UCC28633DR easy to design with? A: Yes, UCC28633DR provides a simple and flexible design process with minimal external components required, making it relatively easy to implement in technical solutions.

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