AN5272

Overview

The AN5272 is a monolithic dual-channel SEPP audio power amplifier IC designed for stereo TV applications. It delivers 4.0 W output at 18 V into an 8 Ω load with a total harmonic distortion of 1.0%. The device operates within a supply voltage range of 12.2 V to 27.5 V and features built-in DC volume control, thermal protection, and over-current protection. Key electrical characteristics include a typical quiescent current of 25 mA, a voltage gain of 30 dB, and a maximum volume attenuation of -64 dB.

Feature Summary

• Built-in DC volume control compatible with microcomputer PWM outputs
• Integrated thermal and over-current protection circuits
• Dual variable audio output (VAO) channels
• Minimal external component requirements

Applications

• Television sets
• Stereo audio systems

Procurement Notes

Verify the specific package variant HSIP012-P-0000A against the design requirements. Confirm that the operating ambient temperature range of -25 °C to +75 °C aligns with the target environment. Ensure adequate heatsinking is provided if the application demands high output power, as the junction temperature protection activates around 150 °C.

Selection Notes

Select this component for stereo TV designs requiring integrated volume control and protection. The fixed internal input gain of 4 dB and adjustable external feedback network allow for precise system gain configuration. Consider the ripple filter pin for noise reduction in power-sensitive environments.

Part Context

Part of Panasonic's ICs for Audio Common Use series, the AN5272 serves as a dedicated solution for television audio processing. It integrates power amplification with signal conditioning functions, reducing the need for discrete components in consumer electronics manufacturing.

Replacement Considerations

No officially confirmed substitute part numbers are documented in the source material.