Şirket Blog About Mingjiada Supply IRS2092S Class D Audio Amplifier ICs in Large Quantities — Suitable for Home Cinema, Professional Audio and In-Car Audio Systems

In the field of Class D audio amplification, the IRS2092S is a high-performance driver chip that has been thoroughly proven in the market. Mingjiada currently supplies genuine Infineon IRS2092S chips in large quantities, with ample stock and highly competitive pricing. We welcome enquiries and orders from both new and existing customers.

I. IRS2092S Product Overview

The IRS2092S is a high-voltage, high-performance Class D audio power amplifier driver chip launched by Infineon Technologies, housed in a 16-pin SOIC package. This chip is specifically designed for Class D audio power amplifier systems delivering ultra-high output power. It integrates a PWM modulator, gate driver stage and multiple protection circuits; when combined with two external MOSFETs and a small number of peripheral components, it enables the construction of a complete mono Class D audio power amplifier.

The core advantage of the IRS2092S lies in its single-chip solution enabling a high-power-density design, capable of delivering up to 500W of output power whilst maintaining exceptional audio performance.

II. Key Features and Performance Parameters

The IRS2092S is suitable for a wide range of high-power audio applications, thanks to the following key features:

Operating voltage: 10V to 18V

Output power: Up to 500W (±100V rated)

PWM operating frequency: Up to 800kHz

THD+N: 0.01% (1kHz/50W/4Ω)

Open-loop gain of error amplifier: >60dB

Residual noise: 200μVrms (AES-17 filtered)

Operating temperature range: -40°C to +125°C

Package type: SOIC-16

Core Functional Modules

PWM Modulator: Supports half-bridge topology with a switching frequency of up to 800 kHz. The dead time can be flexibly programmed between four levels—25, 40, 65 and 105 ns—via an external resistor connected to the DT pin, effectively improving THD performance.

Gate Driver Stage: Utilises International Rectifier’s patented noise isolation technology, providing a source current capability of 1.0 A and a sink current capability of 1.2 A, ensuring fast and efficient switching of external MOSFETs.

Multiple protection circuits: Integrated bidirectional overcurrent protection (OCP, achieved by monitoring the MOSFET’s RDS(on)), under-voltage lockout (UVLO), over-temperature shutdown (OTP) and DC offset protection (DCP); all protection functions feature self-reset capability.

Elimination of Start-up/Shutdown ‘Click’ Noise: Built-in noise suppression circuits during start-up and shutdown effectively eliminate audible noise generated when the PWM signal is switched on and off.

III. Typical Application Scenarios

Thanks to its high power density, high efficiency (typical efficiency of over 90 per cent) and outstanding audio performance, the IRS2092S is widely used in the following scenarios:

1. Home Cinema and AV Receivers

In 5.1-channel, 7.1-channel and even higher-specification home cinema systems, the IRS2092S can drive centre, surround and subwoofer channels to deliver high-fidelity audio output. Typical applications include AV receivers, home cinema systems and mini stereo systems. A particular brand’s 7.1-channel AV receiver utilises eight IRS2092S devices to achieve an output of 300W per channel, with total harmonic distortion below 0.03% (1kHz/100W/8Ω) and efficiency as high as 92%.

2. Professional Audio and Stage Equipment

In professional settings such as concerts, theatres and conference systems, the IRS2092S supports multi-chip parallel operation to achieve kilowatt-level output. Typical applications include professional audio amplifiers, active loudspeakers, active subwoofers, public address (PA) systems and instrument amplifiers. Infineon’s official reference design, IRAUDAMP9, utilises the IRS2092S in conjunction with the IRFB4227 MOSFET to achieve an impressive single-channel output of 1.7 kW (at a 2 Ω load).

3. In-Vehicle Audio Systems

Automotive environments impose extremely stringent requirements on a chip’s shock resistance and temperature tolerance. The IRS2092S supports automotive-grade applications (having passed ISO 16750 testing) and can operate continuously for 1,000 hours without failure during temperature cycling tests ranging from –40°C to 85°C. Its wide operating voltage range and high reliability make it an ideal choice for in-car audio power amplifiers. Even when the 12V in-car supply voltage fluctuates, the IRS2092S will not produce sudden ‘pop’ noises or shut down.

4. Hi-Fi Audio Systems

The IRS2092S is equally suitable for high-end Hi-Fi audio systems, meeting audiophiles’ ultimate pursuit of sound quality. Through optimised dead-time settings (THD < 0.02% for a 1 kHz sine wave at 50 ns) and carefully matched LC filters, it achieves sound quality performance approaching that of traditional Class AB amplifiers.

IV. Summary of Technical Advantages

High power density: The single-chip solution supports an output of up to 500W, significantly reducing PCB footprint

High efficiency: Class D topology with typical efficiency exceeding 90 per cent and low heat generation

Flexible configurability: Switching frequency and dead time are both programmable to suit different loads and sound quality requirements

Multi-level protection: Comprehensive protection including OCP, UVLO, OTP and DCP, with an auto-reset function to ensure system safety

Low distortion: THD+N as low as 0.01 per cent, meeting high-fidelity audio requirements

Wide operating temperature range: Industrial-grade range from –40°C to 125°C, suitable for harsh environments

V. Mingjiada’s Stock Availability

Mingjiada maintains a long-term, large-scale supply of the Infineon IRS2092S Class D audio amplifier driver IC. All products are genuine originals, with a stable supply chain and a significant price advantage. Suitable for:

Home cinema and AV receiver amplifier designs

Professional stage sound systems and active loudspeaker systems

Car audio power amplifiers

Hi-Fi audio equipment

Musical instrument amplifiers and public address systems

Engineers and procurement professionals are welcome to contact us by telephone for enquiries and to obtain the latest quotations.