The MA5332MSXUMA1 from Infineon is a MERUS™ 2-channel analog-input Class-D audio power amplifier multichip module designed for high-power and high-efficiency audio systems. It integrates a dual-channel PWM controller, high-voltage gate drivers, and four low-RDS(ON) MOSFETs, providing a compact solution with high power density and reduced external component requirements.
The MA5332MSXUMA1 delivers up to 2 × 200W into 4Ω loads at 10% THD+N and achieves approximately 95% efficiency at 2 × 200W into 4Ω. It can also operate at 2 × 100W with little or no additional heatsinking, helping simplify thermal management and reduce overall amplifier size.
The device supports both split and single power supplies as well as differential or single-ended analog inputs. Flexible output configurations include 2×SE, BTL, and PSE modes. Integrated protection features include overcurrent protection, overtemperature protection, and undervoltage lockout with reset. Start/stop click-noise reduction and clip/fault reporting outputs further simplify system-level audio amplifier design.
Housed in a compact 7 × 7 mm PG-IQFN-42 package, the MA5332MSXUMA1 is well suited for powered speakers, soundbars, subwoofers, home audio equipment, professional audio amplifiers, and other high-power Class-D audio applications.
Key Specifications:
- Brand: Infineon
- Part Number: MA5332MSXUMA1
- Series: MERUS™ MA5332MS
- Product Type: Class-D Audio Power Amplifier
- Audio Input Type: Analog
- Channels: 2
- Output Power: Up to 200W per Channel
- Rated Performance: 2 × 200W @ 4Ω, 10% THD+N
- Efficiency: Approx. 95% @ 2 × 200W / 4Ω
- Supply Configuration: Split or Single Supply
- Typical Supply Voltage: ±25V or 50V
- Input Configuration: Differential / Single-Ended
- Output Modes: 2×SE / BTL / PSE
- Integrated Functions: PWM Controller, High-Voltage Gate Drivers, 4 MOSFETs
- Protection: OCP / OTP / UVLO
- Additional Features: Click-Noise Reduction, Clip and Fault Reporting
- Package: PG-IQFN-42
- Package Size: Approx. 7 × 7 mm
- Packing Type: Tape & Reel
- RoHS Compliant: Yes
- Product Status: Active and Preferred
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