Intersil
La imagen puede ser una representación.
Consulte las especificaciones para obtener detalles del producto.
ISL6549CR
Ver Detalle Hojas de datos

ISL6549CR

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Regulator
  • Characteristics: High Efficiency, Low Power Consumption
  • Package: 16-Lead SOIC (Small Outline Integrated Circuit)
  • Essence: Power Management IC
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 4.5V to 5.5V
  • Output Voltage Range: 0.8V to 3.3V
  • Output Current: Up to 4A
  • Switching Frequency: 300kHz to 1MHz
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The ISL6549CR has a 16-pin configuration as follows:

  1. VCC
  2. GND
  3. FB
  4. COMP
  5. SS/TR
  6. RT
  7. CT
  8. BOOT
  9. LX
  10. PGND
  11. PGND
  12. PGND
  13. PGND
  14. PGND
  15. PGND
  16. PGND

Functional Features

  • Integrated synchronous buck controller and high-side MOSFET driver
  • Adjustable output voltage through external resistors
  • Overcurrent protection with hiccup mode
  • Soft-start function for controlled startup
  • Power-good output for monitoring the output voltage

Advantages and Disadvantages

Advantages: - High efficiency resulting in reduced power consumption - Compact package size for space-constrained applications - Wide input voltage range allows for versatile use - Overcurrent protection ensures system safety

Disadvantages: - Limited output current compared to some other models - Requires external components for operation

Working Principles

The ISL6549CR is a voltage regulator IC that utilizes a synchronous buck converter topology. It operates by converting a higher input voltage to a lower output voltage with high efficiency. The integrated controller and MOSFET driver enable precise control of the output voltage. The soft-start function ensures a gradual increase in output voltage during startup, preventing excessive current flow. The overcurrent protection feature safeguards the system by limiting the output current in case of a fault.

Detailed Application Field Plans

The ISL6549CR is commonly used in various applications, including:

  1. Computer motherboards
  2. Networking equipment
  3. Industrial power supplies
  4. Telecommunications systems
  5. Consumer electronics

Alternative Models

  1. ISL6549CBZ (16-Lead SOIC package)
  2. ISL6549IRZ-T (16-Lead QFN package)
  3. ISL6549IAZ-T (8-Lead DFN package)

These alternative models offer similar functionality and can be considered as replacements for the ISL6549CR in different package options.

In conclusion, the ISL6549CR is a versatile voltage regulator IC that offers high efficiency and low power consumption. Its compact package and wide input voltage range make it suitable for various applications. However, it has limitations in terms of output current and requires external components for operation. Overall, it provides reliable power management solutions for different electronic systems.

Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de ISL6549CR en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of ISL6549CR in technical solutions:

  1. Q: What is ISL6549CR? A: ISL6549CR is a synchronous buck controller IC used for voltage regulation in various power supply applications.

  2. Q: What is the input voltage range supported by ISL6549CR? A: The input voltage range supported by ISL6549CR is typically between 4.5V and 5.5V.

  3. Q: What is the output voltage range that can be achieved using ISL6549CR? A: The output voltage range achievable with ISL6549CR depends on the external components used, but it can typically range from 0.8V to 5.5V.

  4. Q: What is the maximum output current that ISL6549CR can handle? A: ISL6549CR can handle a maximum output current of up to 20A, depending on the thermal design and external components used.

  5. Q: Can ISL6549CR operate in a synchronous rectification mode? A: Yes, ISL6549CR supports synchronous rectification, which improves efficiency by reducing power losses.

  6. Q: Does ISL6549CR have built-in protection features? A: Yes, ISL6549CR includes various protection features such as overcurrent protection, overvoltage protection, and thermal shutdown.

  7. Q: What is the switching frequency range of ISL6549CR? A: The switching frequency range of ISL6549CR is typically between 100kHz and 1MHz, but it can be adjusted using external components.

  8. Q: Can ISL6549CR be used in battery-powered applications? A: Yes, ISL6549CR can be used in battery-powered applications as it supports a wide input voltage range and has low quiescent current.

  9. Q: Is ISL6549CR suitable for high-efficiency power supply designs? A: Yes, ISL6549CR is designed for high-efficiency power supply designs, thanks to its synchronous rectification capability and adjustable switching frequency.

  10. Q: What are some typical applications of ISL6549CR? A: ISL6549CR is commonly used in various applications such as desktop computers, servers, telecom equipment, industrial systems, and automotive electronics.

Please note that the answers provided here are general and may vary depending on specific design requirements and application scenarios. It is always recommended to refer to the datasheet and consult with technical experts for accurate information.