EVAL_AUDAMP24

综述

Single-ended, 2-channel CoolGaN™ class D amplifier for premium audio applications

The EVAL_AUDAMP24 e-mode GaN HEMT-based evaluation board is a 2-channel, 225W/ch (4Ω at ±43V) or 250 W/ch( 8Ω at ±63V) half-bridge class D audio power amplifier for high-end Hi-Fi audio systems. This evaluation board demonstrates how to use the IGT40R070D1 E8220 CoolGaN™ gallium nitride transistor together with the MERUS™ IRS20957SPBF controller IC, implement protection circuits, and design an optimum PCB layout. The reference design provides all the required housekeeping power supplies for ease of use. The 2-channel design is scalable for power and the number of channels.

特征描述

  • Output power:
    • 225W x 2 channels (1% THD+N, 4Ω at ±43V)
    • 250W x 2 channels (1% THD+N, 8Ω at ±63V)
  • Multiple protection features:
    • Overcurrent protection (OCP), high- and low-side  e-mode GaN transistors
    • Overvoltage protection (OVP)
    • Undervoltage protection (UVP), high- and low-side e-mode GaN transistors
    • Overtemperature protection (OTP)
  • PWM modulator: Self-oscillating half-bridge topology with optional clock synchronization

优势

  • Clean switching performance
  • Narrow deadtime for better THD
  • Easy to use: compatible with the MERUS™ IRS20957SPBF class D controller
  • Outstanding audio quality
  • High reliability

潜在应用

  • Hi-Fi amplifiers
  • AV receivers
  • Home theater systems
  • Powered speakers
  • Musical instrument amplifiers

List of components:

Please be aware of the errata sheet.

支持