BA5406

Overview

The BA5406 is a dual OTL monolithic power IC from ROHM Semiconductor, designed as a Class-AB stereo speaker amplifier. It delivers high output power of 5W per channel at VCC=12V with a 3Ω load, and 2.8W per channel at VCC=9V. The device operates within a supply voltage range of 5V to 15V. Key electrical specifications include a closed-loop voltage gain of 46 dB, a quiescent current of 40 mA, and an output noise voltage of 0.6 mVrms. It utilizes a SIP-M12 package.

Feature Summary

• Good low voltage characteristics allowing operation from Vcc=5 V
• Ripple filter pin (Pin 6) can function as a muting control when grounded
• Small thermal resistance package enabling simple heatsink design

Applications

• Stereo radio cassette players
• Mini-audio systems
• LCD TVs

Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm the package type and packaging format. The standard BA5406 typically uses the SIP-M12 package and tube packaging. Ensure compatibility with the required thermal dissipation requirements for the target application environment.

Selection Notes

Select the BA5406 for applications requiring a dual-channel Class-AB amplifier with straightforward thermal management. It is suitable for designs needing good performance at lower supply voltages starting from 5V. Consider the BA5417 if additional features like standby switching or soft clip circuits are required.

Part Context

The BA5406 belongs to ROHM's line of Class-AB speaker amplifiers, specifically the BA54xx series. It is often compared with the BA5417, which shares similar core amplifier capabilities but adds integrated protection and control features such as thermal shutdown and standby modes. Both devices serve as dual OTL power ICs for audio output stages.

Replacement Considerations

The BA5417 is a direct functional alternative within the same family, offering enhanced features like standby control and soft clipping while maintaining similar output power characteristics.