BD28412MUV-E2

Overview

The BD28412MUV-E2 is a stereo Class D speaker amplifier manufactured by ROHM Semiconductor. It delivers 9W+9W output via stereo BTL or 18W via mono PBTL without requiring a heatsink. The device operates on a power supply voltage range of 4.5V to 13V and features selectable switching frequencies for AM interference avoidance. It supports master/slave synchronization for multi-channel systems and includes protection circuits such as overheat, under-voltage, and short-circuit protection.

Feature Summary

• Analog differential input configuration with low standby current consumption
• Output feedback circuitry that prevents sound quality degradation caused by power supply voltage fluctuations
• Linearly-programmable power limit function to protect the system
• Synchronization control supporting selectable master and slave operations

Applications

• Wireless speakers and battery-powered audio systems
• Multi-channel audio setups utilizing synchronized ICs
• Compact consumer audio equipment requiring high efficiency

Procurement Notes

Verify the specific suffix E2 against the official datasheet to confirm package type and RoHS compliance status. Ensure the application environment remains within the specified -25°C to 85°C operating temperature range. Confirm that the load impedance meets the minimum requirements of 6Ω for stereo or 4Ω for PBTL modes to maintain stable operation and prevent thermal issues.

Selection Notes

Select this component when a compact, high-efficiency Class D amplifier is required for analog input applications. It is suitable for designs needing flexible output configurations between stereo and mono bridged modes. Consider its small VQFN032V5050 package for space-constrained layouts. Note that it is a standard-grade product not recommended for automotive use.

Part Context

This part belongs to the BD284 series of Class D amplifiers from ROHM Semiconductor. It shares functional similarities with models like the BD28411MUV-E2 but offers specific output power characteristics optimized for general-purpose audio applications. The series emphasizes low heat generation and small footprint design for portable electronics.

Replacement Considerations

The BD28411MUV-E2 is a related model within the same family. Verify pin compatibility and output power specifications before substitution. No other direct public substitutes are confirmed in the available documentation.