Infineon Technologies PowIRaudio™ IR43xx Integrated Power Modules
Infineon PowIRaudio™ Compact Integrated Power Modules are designed for high performance home theater systems and car audio amplifiers. They each integrate a PWM controller and two digital audio power MOSFETs in a single package, forming a high performance Class D audio amplifier. These integrated power modules offer a highly efficient, compact solution that reduces component count, shrinks PCB size up to 70%, and simplifies Class D amplifier design.
The single-channel IR4301M and dual-channel IR4302M offer the flexibility and convenience of building stereo amplifier and multi-channel designs in various channel configurations, while the devices' 5mm x 6mm and 7mm x 7mm PQFN packages enhance the benefit of utilizing a smaller size of Class D topology. Other key features common to the family include over-current protection, thermal shutdown, internal/external shutdown, and floating differential input. IR4302M also offers clip detection.
These Class D solutions are proven to offer equivalent audio performance to Class AB amplifiers while providing the additional benefits of higher efficiency and smaller size. The high level of integration of the PowIRaudio modules enables customers to quickly and easily design their high performance Class D Audio systems.
Features
- Integrated analog input Class D audio amplifier in a small package
- High peak music power output
- No mechanical heatsink required
- Split or single power supply
- Differential or single-ended input
- Over-current, over-temperature, and under voltage protections with self-reset function
- Start/stop click noise reduction
- High noise immunity
- Lead-free and RoHS compliant
Applications
- Home theater systems
- Docking station audio systems
- PC audio systems
- Musical instruments
- Karaoke amplifiers
- Game consoles
- Powered speaker systems
- General purpose audio power amplifiers
Reference Designs
A wide range of reference designs are available to further simplify the design of systems using these PowIRaudio devices. These reference designs demonstrate how to use the IR4301, IR4311, IR4302, and IR4312 ICs, implement protection circuits, and design an optimum PCB layout using PowIRaudio integrated Class D ICs. The reference designs do not require additional heatsink or fan cooling for normal operation (one-eighth of continuous rated power). They provide all the required housekeeping power supplies for ease of use. The two-channel design is scalable for power and the number of channels.
Associated Products
ICE Components Fixed Inductors
Used in audio amplifiers, DC/DC converters, high current, and output filter in flyback applications.
Associated Boards
Infineon Technologies IRAUDAMP16 Reference Design Board
Features the IR4302 Pow IRaudio™ integrated class D IC and comes in half-bridge topology.
Infineon Technologies IRAUDAMP19 Reference Design Board
2-channel 100W/channel half-bridge class D audio amplifier with a single power supply.
| Número de referencia | Hoja de datos | Descripción |
|---|---|---|
| IR4321MTRPBF |  |
Amplificadores de audio PowIRaudio 1-Ch Class-D Audio |
| IR4302MTRPBF | |
Amplificadores de audio Int Dig Audio Amp 35W 4ohm 250uVrms |
| IR4301MTRPBF | |
Amplificadores de audio Int Dig Audio Amp 160W 4ohm 250uVrms |
| IR4322MTRPBF | |
Amplificadores de audio 2Ch Class D Audio 10W 4Ohm |