EVAL_AUDAMP24 250W 2-Channel Class D Audio Amplifier Evaluation Board
225W to 250W per channel two-channel half-bridge Class D audio amplifier reference design using CoolGaN e-mode HEMTs and the IRS20957S controller IC.
Overview
The EVAL_AUDAMP24 is a reference design for a two-channel Class D audio power amplifier utilizing Infineon CoolGaN gallium nitride (GaN) e-mode HEMTs and the IRS20957S controller IC. It delivers 225 W per channel into 4 ohms (at ±43 V) or 250 W per channel into 8 ohms (at ±63 V). The board features a self-oscillating PWM modulator and includes comprehensive protection systems for over-current, over-voltage, under-voltage, and over-temperature. The design demonstrates high-efficiency operation (up to 96% for the Class D stage) and a high signal-to-noise ratio of 118 dB for Hi-Fi audio applications.
Use Cases
- Hi-Fi audio systems
- AV receivers
- Home theater systems
- Powered speakers
- Musical instrument amplifiers
Topics
Referenced Parts
IGT40R070D1 E8220
Infineon
IGT40R070D1 E8220 CoolGaN™ HEMTs
IGT40R070D1
Infineon
Figure 14 is the class D switching stage using a GaN FET, Infineon IGT40R070D1 E8220. Using a GaN FET takes a
| IRS20957SPBF | Infineon | Infineon devices IRS20957SPBF integrated class D IC |
| IGT40R070D1 E8220 | Infineon | IGT40R070D1 E8220 CoolGaN™ HEMTs |
| IGT40R070D1 | Infineon | Figure 14 is the class D switching stage using a GaN FET, Infineon IGT40R070D1 E8220. Using a GaN FET takes a |