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Discrete Class-D audio amplifier ICs

MERUS? discrete audio amplifier driver ICs with MOSFETs or GaN HEMTs

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Overview

Infineon's high-performance MERUS? discrete Class D amplifier solutions include 1-, 2-, and 4-channel high-voltage amplifier controllers, as well as ultra-low RDS(on) and high-efficiency OptiMOS? power MOSFETs or ultra-efficient CoolGaN? GaN HEMTs. Infineon brings high power, density, reliability, and flexibility to the high-end Class D amplifier market with its leadership in Class D and power semiconductor technologies.

Key Features

  • Differential or single-ended input
  • High power supply rejection ratio
  • High noise immunity
  • Programmable OCP
  • Programmable dead-time generation
  • Click noise reduction

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About

Scalable output power for unified platform designs

Infineon¡¯s MERUS? discrete Class D amplifier audio solutions are scalable to various output power levels by replacing the external MOSFETs or CoolGaN? GaN HEMTs of driver-transistor combinations. A wide range of output power levels can be achieved with a series of Class D audio amplifier controllers and Infineon's MOSFETs and GaN HEMTs portfolio.

Superior audio performance with Infineon power devices

Infineon¡¯s portfolio of MERUS? discrete Class D amplifier solutions enable high-power, high-efficient audio signal amplifications with high-voltage, low-RDS(on) and low reverse recovery charge OptiMOS? MOSFETs which minimize the power dissipation and audio signal distortion during Class D conversion. Infineon's CoolGaN? e-mode HEMTs maximize Class D audio amplifier performance and allow approaching the theoretical ideal Class D conversion efficiency and THD audio performance.

Discover our CoolGaN? 400 V e-mode HEMTs
Integrated protection and enhancement features for audio applications

Infineon MERUS? discrete Class D audio solutions integrate the dedicated audio protection and performance enhancement features, such as programmable bi-directional overcurrent protection with self-reset functions, programmable dead-time control for improved THD performances, versatile protection control enabling latched, non-latched, and host-controlled shutdown functions, undervoltage protection, and start/stop click-noise reduction. These features can help to design simplified yet high-performance and high-reliability audio equipment.

Scalable output power for unified platform designs

Infineon¡¯s MERUS? discrete Class D amplifier audio solutions are scalable to various output power levels by replacing the external MOSFETs or CoolGaN? GaN HEMTs of driver-transistor combinations. A wide range of output power levels can be achieved with a series of Class D audio amplifier controllers and Infineon's MOSFETs and GaN HEMTs portfolio.

Superior audio performance with Infineon power devices

Infineon¡¯s portfolio of MERUS? discrete Class D amplifier solutions enable high-power, high-efficient audio signal amplifications with high-voltage, low-RDS(on) and low reverse recovery charge OptiMOS? MOSFETs which minimize the power dissipation and audio signal distortion during Class D conversion. Infineon's CoolGaN? e-mode HEMTs maximize Class D audio amplifier performance and allow approaching the theoretical ideal Class D conversion efficiency and THD audio performance.

Discover our CoolGaN? 400 V e-mode HEMTs

Integrated protection and enhancement features for audio applications

Infineon MERUS? discrete Class D audio solutions integrate the dedicated audio protection and performance enhancement features, such as programmable bi-directional overcurrent protection with self-reset functions, programmable dead-time control for improved THD performances, versatile protection control enabling latched, non-latched, and host-controlled shutdown functions, undervoltage protection, and start/stop click-noise reduction. These features can help to design simplified yet high-performance and high-reliability audio equipment.

Documents

Documents

Design resources

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