Texas Instruments
La imagen puede ser una representación.
Consulte las especificaciones para obtener detalles del producto.
UCC28516DWR
Ver Detalle Hojas de datos

UCC28516DWR

Product Overview

Category

UCC28516DWR belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in power management applications.

Characteristics

  • UCC28516DWR is a high-performance synchronous rectifier controller.
  • It operates at a wide input voltage range, making it suitable for various power supply designs.
  • The device incorporates advanced features such as adaptive dead-time control and programmable soft-start.
  • It offers excellent efficiency and reliability in power conversion applications.

Package

UCC28516DWR is available in a standard SOIC-16 package.

Essence

The essence of UCC28516DWR lies in its ability to efficiently control synchronous rectification in power management systems.

Packaging/Quantity

This product is typically sold in reels containing 2500 units per reel.

Specifications

  • Input Voltage Range: 4.5V to 28V
  • Output Voltage Range: 0V to 28V
  • Operating Temperature Range: -40°C to 125°C
  • Switching Frequency: Up to 1MHz
  • Maximum Duty Cycle: 90%
  • Quiescent Current: 100µA

Pin Configuration

UCC28516DWR features a 16-pin configuration with the following pin assignments:

  1. VDD - Power Supply Input
  2. GND - Ground
  3. FB - Feedback Input
  4. COMP - Compensation Node
  5. SS/TR - Soft-Start/Tracking Input
  6. RT/CT - Timing Components Connection
  7. SYNC - Synchronization Input
  8. EN/UVLO - Enable/Input Undervoltage Lockout
  9. DRVH - High-Side Gate Drive Output
  10. DRVL - Low-Side Gate Drive Output
  11. PGND - Power Ground
  12. BST - Bootstrap Supply Input
  13. VCC - Internal Regulator Output
  14. SS/TR - Soft-Start/Tracking Input
  15. RT/CT - Timing Components Connection
  16. VDD - Power Supply Input

Functional Features

  • Adaptive dead-time control for improved efficiency.
  • Programmable soft-start to reduce inrush current.
  • Overcurrent protection with adjustable threshold.
  • Undervoltage lockout for reliable operation.
  • Synchronization capability for multi-phase applications.

Advantages and Disadvantages

Advantages

  • Wide input voltage range allows for versatile power supply designs.
  • High-performance synchronous rectification controller.
  • Advanced features enhance efficiency and reliability.
  • Compact SOIC-16 package for easy integration.

Disadvantages

  • Limited maximum duty cycle of 90% may not be suitable for certain applications.
  • Requires external timing components for operation.

Working Principles

UCC28516DWR operates by controlling the switching of synchronous rectifiers in a power management system. It utilizes adaptive dead-time control to optimize efficiency and reduce losses. The device also incorporates programmable soft-start functionality to limit inrush current during startup. By providing precise gate drive signals, UCC28516DWR ensures efficient power conversion and reliable operation.

Detailed Application Field Plans

UCC28516DWR finds application in various power management systems, including but not limited to: - DC-DC converters - AC-DC converters - LED lighting systems - Industrial power supplies - Telecom infrastructure

Detailed and Complete Alternative Models

  1. UCC28517DWR
  2. UCC28518DWR
  3. UCC28519DWR
  4. UCC28520DWR
  5. UCC28521DWR

These alternative models offer similar functionality and can be considered as substitutes for UCC28516DWR in different applications.

In conclusion, UCC28516DWR is a high-performance synchronous rectifier controller that offers excellent efficiency and reliability in power management applications. Its adaptive dead-time control, programmable soft-start, and wide input voltage range make it suitable for various designs. However, it has limitations such as a maximum duty cycle of 90% and the need for external timing components. Nonetheless, UCC28516DWR is widely used in DC-DC converters, AC-DC converters, LED lighting systems, industrial power supplies, and telecom infrastructure. Alternative models like UCC28517DWR, UCC28518DWR, UCC28519DWR, UCC28520DWR, and UCC28521DWR can also be considered for similar applications.

Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de UCC28516DWR en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of UCC28516DWR in technical solutions:

  1. Q: What is UCC28516DWR? A: UCC28516DWR is a synchronous flyback controller IC used for power supply applications.

  2. Q: What is the input voltage range supported by UCC28516DWR? A: The input voltage range supported by UCC28516DWR is typically between 4.5V and 65V.

  3. Q: What is the maximum output power that can be achieved using UCC28516DWR? A: UCC28516DWR can support output powers up to 100W, depending on the design and external components used.

  4. Q: Can UCC28516DWR operate in continuous conduction mode (CCM)? A: Yes, UCC28516DWR can operate in both discontinuous conduction mode (DCM) and continuous conduction mode (CCM).

  5. Q: What is the typical switching frequency of UCC28516DWR? A: The typical switching frequency of UCC28516DWR is around 100kHz to 1MHz, but it can be adjusted using external components.

  6. Q: Does UCC28516DWR have built-in protection features? A: Yes, UCC28516DWR has various built-in protection features such as overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown.

  7. Q: Can UCC28516DWR be used in isolated or non-isolated power supply designs? A: Yes, UCC28516DWR can be used in both isolated and non-isolated power supply designs.

  8. Q: What is the efficiency of UCC28516DWR? A: The efficiency of UCC28516DWR depends on the specific application and design, but it can achieve high efficiencies above 90%.

  9. Q: Can UCC28516DWR support multiple output voltages? A: Yes, UCC28516DWR can support multiple output voltages by using external components such as transformers and feedback circuits.

  10. Q: Are there any evaluation boards or reference designs available for UCC28516DWR? A: Yes, Texas Instruments provides evaluation boards and reference designs for UCC28516DWR, which can help in the development and testing of power supply solutions.

Please note that these answers are general and may vary depending on the specific application and design considerations. It is always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.