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UCC2813D-4
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UCC2813D-4

Product Overview

Category

UCC2813D-4 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in power management applications.

Characteristics

  • UCC2813D-4 is a high-performance current-mode PWM controller.
  • It operates at a fixed frequency and provides precise control over the output voltage.
  • The device features an internal oscillator, soft-start capability, and protection functions.
  • It is designed to work with both low and high power systems.

Package

UCC2813D-4 comes in a small outline package (SOP) with 8 pins.

Essence

The essence of UCC2813D-4 lies in its ability to regulate and control the power output in various electronic devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Input Voltage Range: 7V to 25V
  • Output Voltage Range: 0.8V to 5.1V
  • Operating Temperature Range: -40°C to 85°C
  • Maximum Duty Cycle: 100%
  • Oscillator Frequency: 100kHz to 500kHz
  • Output Current: 200mA

Pin Configuration

UCC2813D-4 has the following pin configuration:

  1. VREF: Reference voltage input
  2. COMP: Error amplifier output
  3. CS: Current sense input
  4. GND: Ground
  5. RT/CT: Timing resistor/capacitor connection
  6. SS/TR: Soft-start/trigger input
  7. OUT: Output voltage
  8. VCC: Supply voltage input

Functional Features

  • Current-mode control for stable regulation
  • Internal oscillator for fixed frequency operation
  • Soft-start function for gradual power-up
  • Overvoltage protection to prevent damage
  • Undervoltage lockout for safe operation

Advantages and Disadvantages

Advantages

  • Precise voltage regulation
  • Wide input voltage range
  • High output current capability
  • Integrated protection features
  • Compact package size

Disadvantages

  • Limited output voltage range
  • Requires external timing components
  • Relatively high cost compared to some alternatives

Working Principles

UCC2813D-4 operates on the principle of current-mode control. It compares the sensed current with a reference voltage to regulate the output voltage. The internal oscillator sets the switching frequency, while the soft-start function ensures a smooth startup. The device also incorporates various protection mechanisms to safeguard against overvoltage and undervoltage conditions.

Detailed Application Field Plans

UCC2813D-4 finds applications in various fields, including:

  1. Power supplies for consumer electronics
  2. Battery chargers
  3. LED lighting systems
  4. Industrial automation equipment
  5. Motor control circuits

Detailed and Complete Alternative Models

Some alternative models that can be considered as substitutes for UCC2813D-4 are:

  1. LM2576-ADJ: Adjustable voltage regulator
  2. LT1073: Step-up/step-down DC-DC converter
  3. MC34063A: Switching regulator controller
  4. TPS5430: Synchronous buck converter
  5. MAX668: Current-mode PWM controller

These alternative models offer similar functionality and can be used as replacements based on specific requirements.

In conclusion, UCC2813D-4 is a versatile current-mode PWM controller used in power management applications. Its precise regulation, integrated protection features, and compact package make it suitable for various electronic devices. However, it has limitations in terms of output voltage range and requires external timing components. There are alternative models available in the market that can be considered as substitutes for this product.

Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de UCC2813D-4 en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of UCC2813D-4 in technical solutions:

  1. Q: What is UCC2813D-4? A: UCC2813D-4 is a high-performance current-mode PWM controller used for controlling power supplies in various applications.

  2. Q: What are the key features of UCC2813D-4? A: Some key features include adjustable frequency operation, cycle-by-cycle current limiting, soft-start capability, and low start-up current.

  3. Q: What is the typical input voltage range for UCC2813D-4? A: The typical input voltage range is between 7V and 25V.

  4. Q: How does UCC2813D-4 help in power supply designs? A: UCC2813D-4 provides precise control over the power supply output voltage and current, ensuring stable and efficient operation.

  5. Q: Can UCC2813D-4 be used in both AC and DC power supply designs? A: Yes, UCC2813D-4 can be used in both AC and DC power supply designs, making it versatile for various applications.

  6. Q: What is cycle-by-cycle current limiting? A: Cycle-by-cycle current limiting is a feature of UCC2813D-4 that protects the power supply by monitoring the current flowing through the system and limiting it on a per-cycle basis.

  7. Q: Does UCC2813D-4 have any protection features? A: Yes, UCC2813D-4 has built-in protection features like overvoltage protection (OVP), undervoltage lockout (UVLO), and thermal shutdown.

  8. Q: Can UCC2813D-4 be used in high-power applications? A: Yes, UCC2813D-4 can be used in high-power applications by using external power devices capable of handling higher currents.

  9. Q: How does the soft-start capability of UCC2813D-4 benefit power supply designs? A: The soft-start capability gradually ramps up the output voltage during start-up, reducing stress on components and preventing excessive inrush current.

  10. Q: Are there any application notes or reference designs available for UCC2813D-4? A: Yes, Texas Instruments provides application notes and reference designs that can help in implementing UCC2813D-4 in various technical solutions.

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