Texas Instruments
Obrázek může být reprezentace.
Viz Specifikace pro podrobnosti o produktu.
UCC2819ADRG4
Zobrazit detail DataSheets

UCC2819ADRG4

Product Overview

Category

UCC2819ADRG4 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in power management applications.

Characteristics

  • UCC2819ADRG4 is a high-performance pulse width modulation (PWM) controller.
  • It offers precise control over power delivery and regulation.
  • The device operates at a wide input voltage range, making it suitable for various applications.
  • It provides protection features such as overvoltage and overcurrent protection.

Package

UCC2819ADRG4 comes in a small outline package (SOIC) with 16 pins.

Essence

The essence of UCC2819ADRG4 lies in its ability to efficiently regulate power delivery in a wide range of applications.

Packaging/Quantity

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

Specifications

  • Input Voltage Range: 3.3V - 30V
  • Output Voltage Range: 0.8V - 5.5V
  • Operating Temperature Range: -40°C to 125°C
  • Switching Frequency: 100kHz - 1MHz
  • Maximum Duty Cycle: 90%
  • Supply Current: 2mA

Detailed Pin Configuration

  1. COMP: Compensation pin for feedback loop control.
  2. FB: Feedback pin for output voltage regulation.
  3. VREF: Reference voltage input pin.
  4. RT/CT: Timing components connection pin.
  5. CT: Timing capacitor connection pin.
  6. RT: Timing resistor connection pin.
  7. GND: Ground reference pin.
  8. SS/TR: Soft-start and tracking pin.
  9. CS: Current sense input pin.
  10. VCC: Power supply input pin.
  11. SYNC: Synchronization input pin.
  12. EN/UVLO: Enable and undervoltage lockout pin.
  13. SS/TR: Soft-start and tracking pin.
  14. OUT: Output pin.
  15. VCC: Power supply input pin.
  16. NC: No connection pin.

Functional Features

  • Precise voltage regulation through feedback loop control.
  • Wide input voltage range allows for versatile applications.
  • Protection features like overvoltage and overcurrent protection enhance system reliability.
  • Soft-start and tracking functionality for smooth power-up and shutdown transitions.
  • Synchronization capability enables synchronization with external clock signals.

Advantages and Disadvantages

Advantages

  • High-performance PWM controller for efficient power management.
  • Wide input voltage range provides flexibility in various applications.
  • Protection features ensure system reliability.
  • Soft-start and tracking functionality for smooth power transitions.
  • Synchronization capability enhances system integration.

Disadvantages

  • Limited maximum duty cycle of 90% may restrict certain applications requiring higher duty cycles.
  • Requires external timing components for operation, increasing complexity in circuit design.

Working Principles

UCC2819ADRG4 operates based on the pulse width modulation (PWM) technique. It regulates the output voltage by comparing it to a reference voltage using a feedback loop. The controller adjusts the duty cycle of the PWM signal to maintain the desired output voltage. This regulation process ensures efficient power delivery and stability.

Detailed Application Field Plans

UCC2819ADRG4 finds applications in various fields, including: 1. Switching power supplies 2. DC-DC converters 3. Battery chargers 4. LED lighting systems 5. Motor control circuits

Detailed and Complete Alternative Models

  1. UCC2819ADR
  2. UCC2819AN
  3. UCC2819ANG4
  4. UCC2819APW
  5. UCC2819APWG4

These alternative models offer similar functionality and can be considered as substitutes for UCC2819ADRG4 in different applications.

In conclusion, UCC2819ADRG4 is a high-performance PWM controller used in power management applications. Its wide input voltage range, protection features, and synchronization capability make it suitable for various fields such as switching power supplies, DC-DC converters, battery chargers, LED lighting systems, and motor control circuits. While it offers advantages like precise voltage regulation and soft-start functionality, it has limitations in terms of maximum duty cycle and external timing component requirements. Alternative models are available to cater to specific application needs.

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací UCC2819ADRG4 v technických řešeních

Sure! Here are 10 common questions and answers related to the application of UCC2819ADRG4 in technical solutions:

  1. Q: What is UCC2819ADRG4? A: UCC2819ADRG4 is a high-performance, current-mode PWM controller designed for offline and DC-to-DC converter applications.

  2. Q: What are the key features of UCC2819ADRG4? A: Some key features include adjustable frequency operation, cycle-by-cycle current limiting, soft-start capability, and integrated high-voltage startup circuitry.

  3. Q: What are the typical applications of UCC2819ADRG4? A: UCC2819ADRG4 is commonly used in power supplies, battery chargers, LED drivers, and other applications requiring precise control of power conversion.

  4. Q: How does UCC2819ADRG4 ensure stable and efficient power conversion? A: UCC2819ADRG4 utilizes current-mode control, which provides excellent line and load regulation, as well as inherent stability and fast transient response.

  5. Q: Can UCC2819ADRG4 operate in both continuous and discontinuous conduction modes? A: Yes, UCC2819ADRG4 can operate in both continuous and discontinuous conduction modes, making it suitable for a wide range of applications.

  6. Q: Does UCC2819ADRG4 have protection features? A: Yes, UCC2819ADRG4 includes various protection features such as overvoltage protection, undervoltage lockout, and thermal shutdown.

  7. Q: What is the maximum operating frequency of UCC2819ADRG4? A: The maximum operating frequency of UCC2819ADRG4 is typically around 1 MHz, allowing for high-frequency switching and compact designs.

  8. Q: Can UCC2819ADRG4 be synchronized with an external clock source? A: Yes, UCC2819ADRG4 has a synchronization input that allows it to be synchronized with an external clock source for applications requiring precise timing.

  9. Q: What is the input voltage range of UCC2819ADRG4? A: The input voltage range of UCC2819ADRG4 is typically between 7 V and 30 V, making it suitable for a wide range of power supply designs.

  10. Q: Is UCC2819ADRG4 available in different package options? A: Yes, UCC2819ADRG4 is available in various package options, including SOIC-16 and TSSOP-16, providing flexibility for different PCB layouts and assembly processes.

Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.