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UCC3808ADTR-1G4
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UCC3808ADTR-1G4

Product Overview

Category

The UCC3808ADTR-1G4 belongs to the category of voltage mode PWM controllers.

Use

It is commonly used in power management applications, particularly in switch-mode power supplies.

Characteristics

The UCC3808ADTR-1G4 features a wide input voltage range, high efficiency, and precise control over the output voltage. It also offers protection features such as overcurrent protection and thermal shutdown.

Package

This product is available in a small outline package (SOP) with a specified pin configuration.

Essence

The essence of the UCC3808ADTR-1G4 lies in its ability to efficiently regulate and control the output voltage in power supply applications.

Packaging/Quantity

The UCC3808ADTR-1G4 is typically packaged in reels and is available in varying quantities depending on the supplier.

Specifications

  • Input Voltage Range: 10V to 20V
  • Output Voltage Range: 0V to 5V
  • Operating Temperature Range: -40°C to 125°C
  • Maximum Duty Cycle: 95%
  • Oscillator Frequency Range: 50kHz to 1MHz

Detailed Pin Configuration

The UCC3808ADTR-1G4 has a standard pin configuration: 1. VREF 2. COMP 3. FB 4. RT/CT 5. GND 6. OUTPUT 7. CS 8. VCC

Functional Features

  • Voltage Mode Operation
  • Adjustable Soft Start
  • Overcurrent Protection
  • Thermal Shutdown
  • Error Amplifier

Advantages and Disadvantages

Advantages

  • Wide Input Voltage Range
  • High Efficiency
  • Precise Output Voltage Control
  • Built-in Protection Features

Disadvantages

  • Limited Oscillator Frequency Range
  • Requires External Components for Full Functionality

Working Principles

The UCC3808ADTR-1G4 operates based on voltage mode control, where the error amplifier compares the actual output voltage with the reference voltage and adjusts the duty cycle of the PWM signal to regulate the output voltage. The adjustable soft start feature ensures a controlled startup process, while the built-in protection features safeguard the circuit from overcurrent and thermal issues.

Detailed Application Field Plans

The UCC3808ADTR-1G4 is well-suited for various power management applications, including: - AC-DC Converters - DC-DC Converters - LED Drivers - Battery Chargers

Detailed and Complete Alternative Models

Some alternative models to the UCC3808ADTR-1G4 include: - UC3843 - TL494 - SG3525 - LT1243

In conclusion, the UCC3808ADTR-1G4 is a versatile voltage mode PWM controller with a wide range of applications in power management. Its precise control, efficiency, and protection features make it a valuable component in various electronic systems.

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10 domande e risposte comuni relative all'applicazione di UCC3808ADTR-1G4 nelle soluzioni tecniche

  1. What is the UCC3808ADTR-1G4?

    • The UCC3808ADTR-1G4 is a high-performance current-mode PWM controller designed for applications such as DC-DC converters and LED drivers.

  2. What are the key features of the UCC3808ADTR-1G4?

    • The UCC3808ADTR-1G4 features include a wide input voltage range, adjustable switching frequency, overcurrent protection, and thermal shutdown.

  3. How can the UCC3808ADTR-1G4 be used in a DC-DC converter?

    • The UCC3808ADTR-1G4 can be used to control the power switching elements in a DC-DC converter, regulating the output voltage and providing protection features.

  4. What is the typical application circuit for the UCC3808ADTR-1G4?

    • A typical application circuit includes the UCC3808ADTR-1G4, power MOSFETs, an inductor, input and output capacitors, and feedback components for voltage regulation.

  5. What are the advantages of using the UCC3808ADTR-1G4 in LED driver applications?

    • The UCC3808ADTR-1G4 offers precise current control, which is essential for driving LEDs, and it can also provide dimming functionality.

  6. How does the UCC3808ADTR-1G4 handle overcurrent protection?

    • The UCC3808ADTR-1G4 incorporates overcurrent protection by monitoring the current through the power MOSFET and taking appropriate action to limit it.

  7. Can the UCC3808ADTR-1G4 operate at high switching frequencies?

    • Yes, the UCC3808ADTR-1G4 can operate at high switching frequencies, making it suitable for applications requiring fast response and compact designs.

  8. What are the design considerations when using the UCC3808ADTR-1G4 in a technical solution?

    • Designers should consider input voltage range, output voltage and current requirements, component selection, and thermal management for optimal performance.

  9. Does the UCC3808ADTR-1G4 require external compensation components?

    • Yes, the UCC3808ADTR-1G4 requires external compensation components to stabilize the control loop and ensure proper operation.

  10. Where can I find detailed application notes and reference designs for the UCC3808ADTR-1G4?

    • Detailed application notes and reference designs for the UCC3808ADTR-1G4 can be found on the manufacturer's website or in the product datasheet.