BD28411MUV-E2

Overview

The BD28411MUV-E2 is a low consumption power Class D amplifier manufactured by Rohm Semiconductor. It provides 9W+9W stereo output at VCC=12V and RL=8Ω. The supply voltage range is 4.5V to 13V. Total Harmonic Distortion is 0.03% typical at Po=1W. Crosstalk is 100dB typical, and PSRR is 55dB typical. Output noise voltage is -80dBV typical. Standby current is 0.1µA typical, and operating current is 16mA typical. Operating temperature ranges from -25°C to +85°C.

Feature Summary

• Analog differential input with selectable switching frequencies to avoid AM radio interference
• Output feedback circuitry prevents sound quality degradation caused by power supply voltage fluctuation
• Supports master and slave synchronization control for 2.1Ch audio systems without beat noise
• Built-in protection circuits including overheat, under voltage, output short, and DC voltage protection

Applications

• Wireless speaker systems
• Small active speakers
• Portable audio equipment

Procurement Notes

Verify the component authenticity against the official Rohm Semiconductor datasheet specifications. Confirm that the package type matches the VQFN032V5050 format. Ensure the part number suffix corresponds to the specific variant required for your design parameters. Cross-reference the manufacturing date code to ensure compliance with current RoHS directives.

Selection Notes

Select this amplifier for battery-powered applications requiring high efficiency and low heat generation. Consider the linearly-programmable power limit function for output control. Verify compatibility with analog differential audio sources. Evaluate the need for master-slave synchronization if deploying multiple units in a multi-channel setup.

Part Context

This component belongs to the BD28411 series of Class D speaker amplifiers. It is designed as a silicon monolithic integrated circuit. The device is optimized for small form factor implementations due to its compact package size. It serves as a solution for portable audio devices where power conservation and sound fidelity are critical requirements.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.