PAM8302AAYCR

Overview

The PAM8302AAYCR is a 2.5W Class-D mono audio amplifier manufactured by Diodes Incorporated, housed in a U-DFN3030-8 (Type E) package with a standard tape and reel quantity of 3000 units. It operates on a supply voltage range of 2.0V to 5.5V and functions within an ambient temperature range of -40°C to +85°C. The device delivers up to 2.5W output power at 10% THD+N into a 4Ω load with a 5V supply, achieving peak efficiency up to 88%. Key electrical characteristics include a quiescent current of 4mA typ., shutdown current under 1µA, and a differential gain of 23.5dB.

Feature Summary

• Filterless architecture enables direct speaker driving without low-pass output filters, reducing system cost and PCB area.
• High efficiency up to 88% optimizes battery life for portable applications compared to traditional Class-AB amplifiers.
• Integrated short circuit protection and thermal shutdown ensure operational reliability under fault conditions.
• Low quiescent current and low electromagnetic interference (EMI) support high-quality sound reproduction.

Applications

• Portable media players and MP4 devices
• GPS navigation systems
• Portable speaker systems
• Two-way radios
• Hands-free and speaker phones

Procurement Notes

Verify the specific ordering suffix 'Y' corresponds to the U-DFN3030-8 (Type E) package configuration as defined in the manufacturer's ordering information. Confirm that the required standard package quantity aligns with your production volume needs. Ensure compatibility with RoHS 3 and halogen-free environmental standards if mandated by your design specifications.

Selection Notes

Select this component when a compact surface-mount solution is required for single-channel audio amplification. The U-DFN3030-8 package offers superior thermal performance compared to MSOP-8 or SO-8 variants. Consider its filterless design for applications prioritizing minimal external component count and reduced board space constraints.

Part Context

This part belongs to the PAM8302A series of 2.5W filterless Class-D mono audio amplifiers from Diodes Incorporated. The series provides multiple packaging options including MSOP-8, SO-8, and U-DFN3030-8 (Type E). All variants share identical electrical performance characteristics, differing only in physical footprint and thermal resistance properties.

Replacement Considerations

Direct substitutes within the same family include PAM8302AASCR (MSOP-8) and PAM8302AADCR (SO-8), which offer identical electrical functionality but require different PCB footprints.

FAQ

How does the PAM8302A achieve filterless operation?

The device utilizes a specialized Class-D architecture that allows it to drive speakers directly without requiring external low-pass output filters, thereby saving PCB area and system cost.

What is the maximum closed-loop gain of the amplifier?

The internal feedback network sets a maximum closed-loop gain of approximately 23.5dB, determined by internal resistors of 150kΩ and 10kΩ.