Infineon Technologies
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IRS20955CD

IRS20955CD

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Audio Amplifier Driver
  • Characteristics:
    • High voltage, high-speed power MOSFET and IGBT driver
    • Designed for Class D audio amplifier applications
    • Provides efficient switching performance
    • Offers protection features for reliable operation
  • Package: SOIC-16 (Small Outline Integrated Circuit)
  • Essence: Power MOSFET and IGBT driver for audio amplifiers
  • Packaging/Quantity: Available in reels of 2500 units

Specifications

  • Supply Voltage Range: 10V to 20V
  • Output Current: ±2.5A
  • Operating Temperature Range: -40°C to +125°C
  • Maximum PWM Frequency: 500kHz
  • Undervoltage Lockout Threshold: 8.3V
  • Overvoltage Lockout Threshold: 20.5V
  • Fault Shutdown Delay: 1.5μs
  • Deadtime Control Range: 35ns to 350ns

Detailed Pin Configuration

The IRS20955CD IC has a total of 16 pins arranged as follows:

___________ | | 1 | 2 3 4 | 5 | 6 7 8 | 9 | 10 11 12 | 13 | 14 15 16 | |___________|

Pin Description:

  1. VCC: Positive supply voltage
  2. SD: Shutdown input (active low)
  3. GND: Ground reference
  4. HO: High-side gate driver output
  5. LO: Low-side gate driver output
  6. NC: No connection
  7. NC: No connection
  8. NC: No connection
  9. NC: No connection
  10. NC: No connection
  11. NC: No connection
  12. NC: No connection
  13. NC: No connection
  14. VSS: Negative supply voltage
  15. VS: High-side floating supply voltage
  16. COM: Common mode voltage

Functional Features

  • High-speed gate driver for power MOSFETs and IGBTs
  • Integrated bootstrap diode for high-side drive
  • Programmable deadtime control for optimized switching performance
  • Protection features:
    • Undervoltage lockout (UVLO)
    • Overvoltage lockout (OVLO)
    • Fault shutdown with adjustable delay
    • Thermal shutdown protection

Advantages and Disadvantages

Advantages: - High voltage capability - Efficient switching performance - Comprehensive protection features - Compact SOIC-16 package

Disadvantages: - Limited maximum PWM frequency (500kHz)

Working Principles

The IRS20955CD is designed to drive power MOSFETs and IGBTs in Class D audio amplifier applications. It provides high-speed switching performance, allowing efficient amplification of audio signals. The integrated bootstrap diode simplifies the high-side drive circuitry. The programmable deadtime control ensures proper timing between the high-side and low-side switches, minimizing shoot-through current.

Detailed Application Field Plans

The IRS20955CD is widely used in various audio amplifier applications, including:

  1. Home theater systems
  2. Car audio systems
  3. Professional audio equipment
  4. PA (Public Address) systems
  5. Musical instrument amplifiers

Detailed and Complete Alternative Models

  1. IRS20957S: Similar functionality with additional protection features
  2. IRS20958PBF: Higher output current capability
  3. IRS20959S: Lower supply voltage range
  4. IRS20960MTRPBF: Higher maximum PWM frequency

These alternative models provide options based on specific requirements and design considerations.

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Énumérez 10 questions et réponses courantes liées à l'application de IRS20955CD dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of IRS20955CD in technical solutions:

  1. Q: What is IRS20955CD? A: IRS20955CD is a high-voltage, high-speed power MOSFET and IGBT driver IC designed for use in audio amplifiers and other high-power applications.

  2. Q: What is the maximum voltage rating of IRS20955CD? A: The maximum voltage rating of IRS20955CD is typically around 600V.

  3. Q: Can IRS20955CD be used with both MOSFETs and IGBTs? A: Yes, IRS20955CD can be used with both MOSFETs and IGBTs, making it versatile for various applications.

  4. Q: What is the maximum output current capability of IRS20955CD? A: The maximum output current capability of IRS20955CD is typically around 2A.

  5. Q: Does IRS20955CD have built-in protection features? A: Yes, IRS20955CD includes various protection features such as overcurrent protection, undervoltage lockout, and thermal shutdown.

  6. Q: Can IRS20955CD operate at high temperatures? A: Yes, IRS20955CD is designed to operate reliably at high temperatures, typically up to 125°C.

  7. Q: Is IRS20955CD suitable for audio amplifier applications? A: Yes, IRS20955CD is commonly used in audio amplifier designs due to its high performance and robustness.

  8. Q: What is the recommended input voltage range for IRS20955CD? A: The recommended input voltage range for IRS20955CD is typically between 10V and 20V.

  9. Q: Can IRS20955CD be used in bridge-tied load (BTL) configurations? A: Yes, IRS20955CD can be used in BTL configurations to drive speakers or other loads.

  10. Q: Are there any application notes or reference designs available for IRS20955CD? A: Yes, the manufacturer of IRS20955CD provides application notes and reference designs that can help with its implementation in various technical solutions.

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