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UCC28513N
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UCC28513N - English Editing Encyclopedia Entry

Product Overview

Category

UCC28513N belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power management applications.

Characteristics

  • UCC28513N is a high-performance, low-power current mode PWM controller.
  • It operates with a wide input voltage range and is suitable for various power supply designs.
  • The IC offers excellent transient response and stability.
  • It incorporates various protection features to ensure safe operation.

Package

UCC28513N is available in a standard 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of UCC28513N lies in its ability to efficiently regulate and control power in electronic systems.

Packaging/Quantity

UCC28513N is typically packaged in reels containing 2500 units.

Specifications

  • Input Voltage Range: 4.5V to 30V
  • Output Voltage Range: 0.8V to 28V
  • Maximum Switching Frequency: 1MHz
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

  1. COMP: Compensation pin for external compensation network.
  2. FB: Feedback pin for regulating the output voltage.
  3. CS: Current sense pin for sensing the inductor current.
  4. GND: Ground reference pin.
  5. VCC: Power supply input pin.
  6. SS/TR: Soft-start and tracking pin for controlling the start-up behavior.
  7. RT/CT: Timing resistor and capacitor connection pin for setting switching frequency.
  8. OUT: Output pin for connecting the power stage.

Functional Features

  • Current Mode Control: UCC28513N utilizes current mode control to achieve stable and efficient power regulation.
  • Adjustable Output Voltage: The feedback pin allows precise regulation of the output voltage.
  • Soft-Start Function: The soft-start pin enables controlled start-up, reducing stress on the components.
  • Overcurrent Protection: The IC incorporates overcurrent protection to safeguard against excessive current flow.
  • Under Voltage Lockout (UVLO): UVLO feature ensures proper operation within specified voltage limits.

Advantages and Disadvantages

Advantages

  • Wide input voltage range allows flexibility in power supply design.
  • Excellent transient response ensures stability during load variations.
  • Integrated protection features enhance system reliability.
  • Compact SOIC package facilitates easy integration into circuit boards.

Disadvantages

  • Limited output voltage range may not be suitable for certain applications requiring higher voltages.
  • Higher switching frequencies may introduce additional noise in sensitive systems.

Working Principles

UCC28513N operates based on the current mode control principle. It senses the inductor current through the CS pin and adjusts the duty cycle of the PWM signal to regulate the output voltage. By comparing the feedback voltage at the FB pin with a reference voltage, the IC continuously adjusts the duty cycle to maintain the desired output voltage.

Detailed Application Field Plans

UCC28513N finds application in various power management systems, including: 1. Switching Power Supplies 2. DC-DC Converters 3. LED Lighting Systems 4. Battery Chargers 5. Industrial Automation Equipment

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to UCC28513N are: 1. LM5113 2. LT3757 3. TPS54332 4. MAX5069

These models offer similar functionality and can be used as substitutes depending on specific requirements.

In conclusion, UCC28513N is a versatile and efficient PWM controller widely used in power management applications. Its excellent performance, integrated protection features, and compact package make it a popular choice among designers seeking reliable power regulation solutions.

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Énumérez 10 questions et réponses courantes liées à l'application de UCC28513N dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of UCC28513N in technical solutions:

  1. Q: What is UCC28513N? A: UCC28513N is a high-performance, active power factor correction (PFC) controller designed for AC/DC power supplies.

  2. Q: What is the input voltage range of UCC28513N? A: The input voltage range of UCC28513N is typically from 85VAC to 265VAC.

  3. Q: What is the output power range supported by UCC28513N? A: UCC28513N can support output power ranges from a few watts up to several hundred watts.

  4. Q: Can UCC28513N be used in both flyback and boost PFC topologies? A: Yes, UCC28513N can be used in both flyback and boost PFC topologies, providing flexibility in design.

  5. Q: Does UCC28513N have built-in protection features? A: Yes, UCC28513N includes various protection features such as overvoltage protection, overcurrent protection, and thermal shutdown.

  6. Q: What is the maximum switching frequency of UCC28513N? A: The maximum switching frequency of UCC28513N is typically around 500kHz.

  7. Q: Can UCC28513N operate in continuous conduction mode (CCM)? A: Yes, UCC28513N can operate in both continuous conduction mode (CCM) and discontinuous conduction mode (DCM).

  8. Q: Is UCC28513N suitable for universal input voltage applications? A: Yes, UCC28513N is designed to work with universal input voltage applications, making it suitable for a wide range of power supplies.

  9. Q: Does UCC28513N support power factor correction (PFC)? A: Yes, UCC28513N is specifically designed for power factor correction (PFC) applications, ensuring high power efficiency and compliance with regulatory standards.

  10. Q: Are there any evaluation boards or reference designs available for UCC28513N? A: Yes, Texas Instruments provides evaluation boards and reference designs for UCC28513N, which can help in the development and implementation of PFC solutions.

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