AN7125

Overview

The AN7125 is a monolithic dual-channel BTL audio power amplifier IC designed for stereo operation in radio cassette and TV applications. It delivers up to 13.5 W output at 12 V into a 4 Ω load, or 13.0 W at 15 V into an 8 Ω load. The device operates within a supply voltage range of 6 V to 18 V, with a typical value of 12 V. Key electrical characteristics include a voltage gain of 40 dB, total harmonic distortion of 0.07% at 1 kHz, and ripple rejection of 60 dB.

Feature Summary

• Built-in muting pin for noise suppression during power transitions
• Integrated standby control pin for low-power management
• Thermal shutdown protection circuit prevents damage from overheating
• Current limiting circuit safeguards against short circuits and overloads

Applications

• Radio-cassette systems
• TV audio amplification
• Stereo operation in consumer electronics

Procurement Notes

Verify the current lifecycle status before procurement as the component may be under maintenance or discontinued. Confirm package availability and lead times directly with authorized Panasonic distributors. Ensure design compliance with absolute maximum ratings, particularly regarding supply voltage limits and thermal dissipation requirements when integrating external heatsinks.

Selection Notes

Select this IC for applications requiring high power output in a compact dual-channel configuration. Consider its suitability for systems operating between 6 V and 18 V where built-in protection features reduce external component count. Evaluate thermal management needs based on ambient temperature and load impedance to ensure reliable operation within the specified junction temperature limits.

Part Context

The AN7125 belongs to Panasonic's ICs for Audio Common Use series, specifically targeting consumer audio equipment. It serves as a dual channel BTL power amplifier solution, offering integrated protection and control functions suitable for portable and fixed audio devices like radio cassettes and televisions.

Replacement Considerations

Consult official Panasonic documentation for verified substitute part numbers. Cross-reference specifications such as output power, supply voltage range, and package type to ensure compatibility.