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ISL6549CA-T
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ISL6549CA-T

Product Overview

Category

ISL6549CA-T belongs to the category of integrated circuits (ICs) used in power management.

Use

This IC is primarily used for voltage regulation and control in various electronic devices.

Characteristics

  • High efficiency power conversion
  • Wide input voltage range
  • Low standby current consumption
  • Overcurrent protection
  • Thermal shutdown protection

Package

ISL6549CA-T is available in a compact surface-mount package, such as a 16-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of ISL6549CA-T lies in its ability to efficiently regulate and control voltage levels, ensuring stable and reliable power supply to electronic devices.

Packaging/Quantity

ISL6549CA-T is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Input Voltage Range: 4.5V to 5.5V
  • Output Voltage Range: Adjustable from 0.8V to 5.5V
  • Maximum Output Current: 3A
  • Switching Frequency: 300kHz
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The detailed pin configuration of ISL6549CA-T is as follows:

  1. VIN: Input voltage
  2. GND: Ground reference
  3. FB: Feedback voltage input
  4. COMP: Compensation node for feedback loop
  5. SS: Soft-start capacitor connection
  6. VCC: Supply voltage for internal circuitry
  7. EN: Enable pin for turning on/off the IC
  8. PGND: Power ground reference
  9. LX: Switching node connection
  10. BOOT: Bootstrap capacitor connection
  11. BST: Boost voltage output
  12. PGOOD: Power good indicator output
  13. OCSET: Overcurrent protection threshold setting
  14. SS/TRACK: Soft-start capacitor connection or tracking input
  15. VREF: Reference voltage output
  16. VSENSE: Current sense input

Functional Features

  • Voltage regulation and control
  • Overcurrent protection
  • Soft-start capability
  • Power good indicator
  • Thermal shutdown protection

Advantages and Disadvantages

Advantages

  • High efficiency power conversion
  • Wide input voltage range
  • Compact package size
  • Overcurrent protection ensures device safety
  • Thermal shutdown protection prevents overheating

Disadvantages

  • Limited maximum output current (3A)
  • Requires external components for complete functionality

Working Principles

ISL6549CA-T operates based on a pulse-width modulation (PWM) control scheme. It regulates the output voltage by adjusting the duty cycle of the internal switching transistor. The feedback loop compares the output voltage with a reference voltage and adjusts the duty cycle accordingly to maintain the desired output voltage.

Detailed Application Field Plans

ISL6549CA-T finds applications in various electronic devices that require efficient voltage regulation, such as: - Power supplies for computer systems - Industrial equipment - Telecommunications devices - Consumer electronics - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to ISL6549CA-T are: - LM2576-ADJ - LT1074CT - TPS5430DDAR - MAX5035BUPA

These alternatives can be considered based on specific requirements and design constraints.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací ISL6549CA-T v technických řešeních

Sure! Here are 10 common questions and answers related to the application of ISL6549CA-T in technical solutions:

  1. Q: What is ISL6549CA-T? A: ISL6549CA-T is a highly integrated dual PWM controller designed for multiphase synchronous buck applications.

  2. Q: What is the input voltage range supported by ISL6549CA-T? A: The input voltage range supported by ISL6549CA-T is typically between 4.5V and 14V.

  3. Q: What is the maximum output current that ISL6549CA-T can handle? A: ISL6549CA-T can handle a maximum output current of up to 30A.

  4. Q: Can ISL6549CA-T support multiple phases in a power supply design? A: Yes, ISL6549CA-T is specifically designed to support multiphase power supply designs.

  5. Q: What is the purpose of the integrated MOSFET drivers in ISL6549CA-T? A: The integrated MOSFET drivers in ISL6549CA-T provide high-speed switching capability for efficient power conversion.

  6. Q: Does ISL6549CA-T have built-in protection features? A: Yes, ISL6549CA-T includes various protection features such as overcurrent protection, overvoltage protection, and thermal shutdown.

  7. Q: Can ISL6549CA-T be used in both step-down and step-up converter designs? A: No, ISL6549CA-T is specifically designed for step-down (buck) converter applications.

  8. Q: What is the operating frequency range of ISL6549CA-T? A: The operating frequency range of ISL6549CA-T is typically between 200kHz and 1MHz.

  9. Q: Does ISL6549CA-T require an external compensation network? A: Yes, ISL6549CA-T requires an external compensation network for stability and loop control.

  10. Q: What package options are available for ISL6549CA-T? A: ISL6549CA-T is available in a 20-lead QFN package.

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