AN5273

Overview

The AN5273 is a monolithic integrated circuit designed for dual channel SEPP audio power amplifier applications. It delivers 4.0 W output at 18 V with an 8 Ω load. The device features built-in DC volume control, mute function, and thermal protection. Operating voltage ranges from 12.2 V to 27.5 V. Key electrical characteristics include a quiescent current of 25 mA typical, voltage gain of 30 dB, and total harmonic distortion of 0.3% typical. The package is HSIP012-P-0000A.

Feature Summary

• Built-in DC volume control for microcomputer interface compatibility
• Integrated mute circuit for pop-noise elimination during power transitions
• Thermal and over-current protection circuits for system reliability

Applications

• TV stereo operation
• Audio power amplification systems

Procurement Notes

Verify the specific manufacturer datasheet for the AN5273 to confirm pinout compatibility and absolute maximum ratings before integration. Ensure the operating supply voltage remains within the 12.2 V to 27.5 V range to prevent damage. Check for required external heatsinking based on ambient temperature and power dissipation requirements.

Selection Notes

Select this component for stereo TV applications requiring a dual-channel SEPP amplifier. Consider the 12.2 V to 27.5 V operating range and the need for external heat sinks if power dissipation exceeds package limits. Verify that the built-in protection circuits meet the system's safety requirements.

Part Context

The AN5273 belongs to Panasonic's ICs for Audio Common Use series. It is a dual channel SEPP IC suitable for stereo operation in television applications. The device integrates volume control and mute functions, reducing the need for external components compared to basic amplifier designs.

Replacement Considerations

The AN5277 is listed as compatible with the AN5275 and AN5276 series. Verify pin-to-pin compatibility and electrical specifications against the AN5277 datasheet before substitution.