PAM8406DR_01

Overview

The PAM8406DR_01 is a stereo audio amplifier manufactured by Diodes Incorporated, available in a 16-SOP surface-mount package. It supports dual Class-D and Class-AB output modes, allowing selection based on efficiency versus electromagnetic interference requirements. The device operates on a single supply voltage ranging from 2.5V to 5.5V. It delivers up to 5W of output power per channel into a 2-ohm load. Key electrical specifications include a total harmonic distortion plus noise of 0.11% and a quiescent current of 10mA. The component functions within an ambient temperature range of -40°C to +85°C.

Feature Summary

• Offers selectable Class-D or Class-AB output modes to balance system efficiency and electromagnetic interference performance.
• Utilizes a filterless architecture with fully differential outputs in Class-D mode, eliminating the need for low-pass filters and DC blocking capacitors.
• Integrates comprehensive protection mechanisms including short-circuit protection and thermal shutdown to ensure operational reliability.

Applications

• Portable electronic devices requiring high-efficiency audio amplification
• Systems prioritizing reduced printed circuit board area through filterless design
• Applications demanding high sound quality with low distortion

Procurement Notes

Verify the specific suffix designation when ordering, as it determines the exact tape and reel configuration or cut tape availability. Confirm that the 16-SOP package variant matches the target footprint. Check current lifecycle status, as some sources indicate potential obsolescence for related series variants. Ensure compatibility with the required 2.5V to 5.5V supply rail before integration.

Selection Notes

Select this component when both high power output and flexible EMI management are required. The ability to switch between Class-D and Class-AB modes provides design versatility for different regulatory environments. Consider the 16-SOP package constraints for PCB layout. Verify that the 2-ohm load impedance aligns with the speaker specifications to achieve the rated 5W output performance.

Part Context

This part belongs to the PAM8406 series of audio amplifiers from Diodes Incorporated. It shares core architectural features with other members like the PAM8406ER but differs in packaging and specific ordering suffixes. The series is designed for portable applications where space and battery life are critical constraints.

Replacement Considerations

PAM8406DR is listed as a similar substitute part number from the same manufacturer.