BA5417

Overview

The BA5417 is a dual OTL monolithic power IC containing two built-in high-output speaker amplifier circuits. It operates within a supply voltage range of 6.0 V to 15.0 V and delivers a rated output power of 5.0 W per channel at THD=10% with VCC=12V and RL=3Ω. The device features a closed-loop voltage gain of 45 dB, quiescent current of 22 mA, and standby current of 0 µA. It utilizes an HSIP15 package and supports an operating temperature range from -20 °C to +75 °C.

Feature Summary

• Built-in soft clip circuit for audio protection
• Integrated thermal shutdown circuit
• Standby switch circuit with zero standby current
• Circuit designed to prevent ripple addition during motor starts

Applications

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

Procurement Notes

Verify the specific part number against the official ROHM datasheet to confirm the HSIP15 package type. Ensure that the application design accounts for the absolute maximum ratings, particularly regarding power dissipation limits and ambient temperature derating curves. Confirm compatibility with the required supply voltage range before finalizing procurement specifications.

Selection Notes

Select the BA5417 over the BA5406 when advanced protection features are required. The BA5417 includes a built-in standby switch, thermal shutdown, and soft clip circuit, which the BA5406 lacks. Consider the HSIP15 package dimensions and the requirement for an external heatsink to manage power dissipation effectively within the specified operating temperature range.

Part Context

The BA5417 belongs to the BA5406/BA5417 series of Class-AB stereo speaker amplifiers manufactured by Rohm Semiconductor. These devices are designed as dual OTL monolithic power ICs intended for consumer audio applications requiring high output power in a compact form factor. The series provides a baseline for dual-channel amplification with varying levels of integrated protection and control features.

Replacement Considerations

The BA5406 is a related component within the same product family but lacks the standby, thermal shutdown, and soft clip circuits found in the BA5417. Direct substitution requires verifying if the additional protection features of the BA5417 are necessary or if the simpler configuration of the BA5406 suffices for the specific application requirements.