PAM8006ATR_04

Overview

The PAM8006ATR is a stereo Class-D audio power amplifier manufactured by Diodes Incorporated. It delivers up to 15W per channel into an 8Ω load with over 90% efficiency. The device operates on an 8V to 18V supply and features low THD+N of 0.28%. Key electrical parameters include a gain of 32dB, a signal-to-noise ratio of 90dB, and a quiescent current of 16.5mA at no load. It incorporates comprehensive protection mechanisms including thermal shutdown, short-circuit protection, and undervoltage lockout.

Feature Summary

• Integrated power limit function that automatically reduces gain to prevent clipping while maintaining sound quality
• Advanced protection suite including overcurrent, overvoltage, undervoltage lockout, thermal shutdown, and short-circuit protection
• Low noise performance with integrated output noise floor of -100dB and high crosstalk rejection
• Pop noise suppression and shutdown mode for minimal power consumption during non-use

Applications

• Flat monitors and LCD TVs
• Multi-media speaker systems
• DVD players and game machines
• Boom boxes
• Musical instruments

Procurement Notes

Verify the specific ordering suffix 'R' corresponds to the Tape & Reel packaging configuration containing 3000 units per carrier. Confirm the package type matches the W-QFN5050-32 (Standard) outline dimensions. Ensure compliance with RoHS 3 directives and Halogen-free requirements as specified in the manufacturer's documentation before finalizing procurement specifications.

Selection Notes

Select this component for applications requiring high-efficiency stereo amplification within an 8V to 18V supply range. The fixed 32dB gain and differential input architecture simplify circuit design. Consider the W-QFN5050-32 package constraints and the necessity of soldering the exposed thermal pad to the PCB ground plane for optimal thermal dissipation and mechanical stability.

Part Context

This part belongs to the PAM8006A series of Class-D audio amplifiers from Diodes Incorporated. The 'TR' suffix indicates the standard tape and reel packaging format used for automated surface-mount assembly processes. The device is designed to replace traditional linear or lower-efficiency switching amplifiers in compact consumer electronics where board space and power efficiency are critical design factors.

Replacement Considerations

Direct pin-compatible replacements should be verified against the official Diodes Incorporated substitution guide. Ensure any alternative device supports the same 8V to 18V operating voltage range and utilizes the W-QFN5050-32 package to maintain existing PCB layout integrity without redesign.

FAQ

How does the power limit function operate?

The power limit function uses the PL pin to set a maximum output peak-to-peak voltage. If the output power exceeds this setting, the amplifier automatically reduces its gain to keep the power below the limit while preserving audio quality.

What is the recommended startup sequence for pop noise suppression?

For best pop performance, the amplifier should be placed in shutdown mode (SD pin low) prior to removing the power supply voltage. During startup, the internal 2.5V bias generator capacitor determines the turn-on rate, with at least a 0.47μF capacitor recommended.

How is short-circuit protection reset?

Short-circuit protection is a latched fault. To reset it, cycle the SD pin to a logic low state and then back to a logic high state. This clears the flag and allows normal operation if the short has been removed.