ADAU1513ACPZ-RL7

Overview

The ADAU1513ACPZ-RL7 is a stereo Class-D audio power stage manufactured by Analog Devices Inc. It operates as a bridge-tied load (BTL) amplifier, accepting differential PWM inputs and driving speaker loads up to 4 Ω at 15 W per channel with 90% efficiency. The device requires a power supply voltage range of 9 V to 18 V for the power transistors, while digital logic operates on a 3.3 V supply. Key electrical parameters include an output power of 19 W at 1% THD+N into 4 Ω, a signal-to-noise ratio of 96 dB, and total harmonic distortion plus noise of 0.1%. Protection features include thermal warning at 135°C, thermal shutdown at 150°C, and overcurrent protection at 5 A peak.

Feature Summary

• Integrated stereo power stage with built-in thermal warning, thermal shutdown, and overcurrent protection circuits.
• Accepts 3.3 V logic differential PWM inputs and provides open-drain error flag outputs for system microcontroller interfacing.
• Supports automatic recovery from thermal protection states via external circuitry or manual mute toggling.

Applications

• Flat panel televisions
• PC audio systems
• Mini components

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and package variant (LFCSP vs TQFP) against specific project requirements. Check for obsolete status indicators in current catalogs. Ensure proper handling procedures are followed due to moisture sensitivity classification. Validate that the ordering suffix matches the required reel quantity and tape specifications.

Selection Notes

Select this component when a high-efficiency, integrated Class-D solution is needed for stereo audio applications. Ensure the design accommodates the 9 V to 18 V power supply range and 3.3 V logic interface. Consider the need for external low-pass filters and heat sinking for continuous operation above 15 W. Verify compatibility with the PWM modulator source, such as the ADAV4201, for optimal pop-and-click suppression during startup.

Part Context

The ADAU1513 is part of Analog Devices' audio power stage portfolio, designed specifically for integration with pulse-width modulators. It simplifies high-side driver design by eliminating the need for bootstrap capacitors or special gate drive supplies. The device is marked as obsolete in official documentation, indicating it may be superseded by newer generations within the same product family.

Replacement Considerations

Public confirmed substitute part numbers: ADAU1513ACPZ, ADAU1513ASVZ.