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UCC28C42DGK
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UCC28C42DGK

Product Overview

Category

UCC28C42DGK belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power management applications.

Characteristics

  • High efficiency
  • Low power consumption
  • Wide input voltage range
  • Fast response time

Package

UCC28C42DGK is available in a small outline package (SOP) with 8 pins.

Essence

The essence of UCC28C42DGK lies in its ability to regulate and control power flow efficiently.

Packaging/Quantity

UCC28C42DGK is typically sold in reels containing 2500 units per reel.

Specifications

  • Input Voltage Range: 4.5V - 28V
  • Output Voltage Range: 0.8V - 24V
  • Maximum Output Current: 1A
  • Switching Frequency: 100kHz - 1MHz
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

  1. VCC: Power supply input
  2. GND: Ground reference
  3. FB: Feedback pin for voltage regulation
  4. COMP: Compensation pin for stability control
  5. RT/CT: Timing components connection pins
  6. CT: Timing capacitor connection pin
  7. RT: Timing resistor connection pin
  8. OUT: Output voltage pin

Functional Features

  • Voltage regulation and control
  • Overcurrent protection
  • Soft-start functionality
  • Adjustable switching frequency
  • Error amplifier for precise feedback control

Advantages

  • High efficiency leads to reduced power loss
  • Wide input voltage range allows for versatile applications
  • Fast response time ensures quick load regulation
  • Compact package size enables space-saving designs

Disadvantages

  • Limited maximum output current may restrict certain high-power applications
  • Requires external timing components for operation

Working Principles

UCC28C42DGK operates based on the principle of pulse width modulation (PWM). It regulates the output voltage by adjusting the duty cycle of the switching signal. The feedback mechanism compares the actual output voltage with the desired value and adjusts the duty cycle accordingly to maintain stability.

Detailed Application Field Plans

UCC28C42DGK finds applications in various power management systems, including:

  1. DC-DC converters
  2. Switching power supplies
  3. LED drivers
  4. Battery chargers
  5. Industrial automation equipment

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to UCC28C42DGK are:

  1. LM2576-ADJ
  2. LT1073
  3. MC34063A
  4. TPS5430

These alternatives can be considered based on specific requirements and design constraints.

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技術ソリューションにおける UCC28C42DGK 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 UCC28C42DGK in technical solutions:

  1. Q: What is UCC28C42DGK? A: UCC28C42DGK is a high-performance current-mode PWM controller used in power supply applications.

  2. Q: What are the key features of UCC28C42DGK? A: Some key features include wide input voltage range, adjustable switching frequency, cycle-by-cycle current limiting, and soft-start capability.

  3. Q: How does UCC28C42DGK help in power supply designs? A: UCC28C42DGK provides precise control over the power supply's output voltage and current, ensuring stable and efficient operation.

  4. Q: Can UCC28C42DGK be used in both AC-DC and DC-DC power supplies? A: Yes, UCC28C42DGK can be used in both AC-DC and DC-DC power supply applications.

  5. Q: What is the maximum operating frequency of UCC28C42DGK? A: The maximum operating frequency of UCC28C42DGK is typically around 1 MHz.

  6. Q: Does UCC28C42DGK have built-in protection features? A: Yes, UCC28C42DGK includes features like overvoltage protection, undervoltage lockout, and thermal shutdown for enhanced system reliability.

  7. Q: Can UCC28C42DGK operate in a wide temperature range? A: Yes, UCC28C42DGK is designed to operate reliably in a wide temperature range, typically from -40°C to 125°C.

  8. Q: How can I adjust the output voltage using UCC28C42DGK? A: The output voltage can be adjusted by changing the feedback resistors connected to the FB pin of UCC28C42DGK.

  9. Q: Is UCC28C42DGK suitable for high-power applications? A: Yes, UCC28C42DGK is suitable for a wide range of power levels, including high-power applications.

  10. Q: Are there any application notes or reference designs available for UCC28C42DGK? A: Yes, Texas Instruments provides application notes and reference designs that can help in implementing UCC28C42DGK in various technical solutions.

Please note that these answers are general and may vary depending on the specific requirements and use cases. It's always recommended to refer to the datasheet and relevant documentation for accurate information.