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。
UCC28528DW
詳細を表示 DataSheets

UCC28528DW

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High-performance, low-power, voltage mode synchronous PWM controller
  • Package: SOIC-16
  • Essence: Regulates and controls power delivery in various applications
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 4.5V to 60V
  • Output Voltage Range: 0.8V to 55V
  • Switching Frequency: Up to 2MHz
  • Duty Cycle Range: 0% to 100%
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. COMP: Compensation pin for loop stability
  4. FB: Feedback pin for output voltage regulation
  5. CS: Current sense pin for current limit protection
  6. SS/TR: Soft-start and tracking pin
  7. EN/UVLO: Enable and undervoltage lockout pin
  8. VREF: Reference voltage output pin
  9. RT/CLK: Timing resistor and clock synchronization pin
  10. SYNC: External synchronization pin
  11. PGND: Power ground pin
  12. DRVH: High-side gate driver output pin
  13. DRVL: Low-side gate driver output pin
  14. BOOT: Bootstrap capacitor connection pin
  15. SW: Switch node connection pin
  16. VCC: Supply voltage input pin

Functional Features

  • Voltage mode control with adjustable frequency and duty cycle
  • Adaptive dead-time control for improved efficiency
  • Programmable soft-start and tracking function
  • Precision reference voltage for accurate regulation
  • Comprehensive protection features including UVLO, overvoltage, and overcurrent protection

Advantages and Disadvantages

Advantages: - High-performance power management solution - Wide input and output voltage range - Flexible frequency and duty cycle control - Efficient and reliable operation - Comprehensive protection features ensure system safety

Disadvantages: - Requires external components for complete functionality - Limited availability of alternative models

Working Principles

The UCC28528DW is a voltage mode synchronous PWM controller designed for power management applications. It regulates the power delivery by controlling the switching of power MOSFETs in a synchronous buck converter configuration. By adjusting the frequency and duty cycle of the switching waveform, it achieves precise regulation of the output voltage. The controller utilizes a feedback loop to compare the actual output voltage with a reference voltage and adjusts the duty cycle accordingly to maintain the desired output voltage.

Detailed Application Field Plans

The UCC28528DW is widely used in various power management applications, including but not limited to: - DC-DC converters - Telecom and networking equipment - Industrial automation systems - Automotive electronics - Renewable energy systems

Detailed and Complete Alternative Models

While the UCC28528DW is a highly capable power management controller, there are alternative models available from different manufacturers that offer similar functionalities. Some notable alternatives include: - LTC3851A from Linear Technology - MAX15062 from Maxim Integrated - TPS53632 from Texas Instruments

These alternative models provide comparable performance and can be considered based on specific application requirements.

Word count: 334 words

技術ソリューションにおける UCC28528DW 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 UCC28528DW in technical solutions:

  1. Q: What is UCC28528DW? A: UCC28528DW is a high-performance synchronous flyback controller IC designed for isolated power supply applications.

  2. Q: What are the key features of UCC28528DW? A: Some key features include wide input voltage range, high efficiency, adjustable switching frequency, and comprehensive protection features.

  3. Q: What is the typical application of UCC28528DW? A: UCC28528DW is commonly used in offline AC-DC power supplies, battery chargers, LED lighting, and other isolated power supply applications.

  4. Q: How does UCC28528DW achieve high efficiency? A: UCC28528DW utilizes advanced control techniques like valley switching and frequency foldback to optimize efficiency across various load conditions.

  5. Q: Can UCC28528DW operate with a wide input voltage range? A: Yes, UCC28528DW can operate with an input voltage range typically from 4.5V to 65V, making it suitable for a wide range of applications.

  6. Q: Is UCC28528DW capable of providing accurate output voltage regulation? A: Yes, UCC28528DW incorporates a feedback loop that enables precise output voltage regulation even under varying load conditions.

  7. Q: Does UCC28528DW offer any protection features? A: Yes, UCC28528DW provides comprehensive protection features such as overvoltage protection, overcurrent protection, and thermal shutdown.

  8. Q: Can UCC28528DW be easily configured for different applications? A: Yes, UCC28528DW offers a flexible design with adjustable switching frequency, soft-start time, and other parameters to suit various application requirements.

  9. Q: What is the maximum output power that UCC28528DW can handle? A: UCC28528DW can handle output power up to 100W, depending on the specific application design and thermal considerations.

  10. Q: Are there any reference designs or application notes available for UCC28528DW? A: Yes, Texas Instruments provides reference designs and application notes that offer guidance on using UCC28528DW in different technical solutions.

Please note that these answers are general and may vary based on specific application requirements and design considerations.