PAM8303CCYC

Overview

The PAM8303CCYC is a mono Class-D audio power amplifier manufactured by Diodes Incorporated, housed in a DFN3x3-8 package. It delivers 3W output at 10% THD with a 4Ω load at 5V supply. Operating voltage ranges from 2.8V to 5.5V. Key electrical parameters include shutdown current under 1µA, peak efficiency up to 90%, and ultra-low EMI performance exceeding FCC Class-B standards by 20dB at 300MHz. The device features differential inputs, short circuit protection, and thermal shutdown.

Feature Summary

• Filterless architecture eliminates the need for external output LC filters, reducing component count and PCB area.
• Ultra-low electromagnetic interference (EMI) design ensures compliance with strict regulatory standards without additional filtering components.
• Integrated safety mechanisms include short circuit protection and thermal shutdown to prevent device damage during fault conditions.

Applications

• Cellular phones and smart phones
• MP4/MP3 media players
• GPS navigation devices
• Digital photo frames
• Portable game machines

Procurement Notes

Verify the specific suffix CCYC corresponds to the DFN3x3-8 package type when sourcing. Confirm RoHS compliance and Pb-free status as indicated in the datasheet. Ensure the supplier provides traceability documentation consistent with Diodes Incorporated manufacturing standards. Check for moisture sensitivity levels appropriate for surface mount assembly processes.

Selection Notes

Select this component for space-constrained portable applications requiring high efficiency and low noise. The DFN3x3-8 package offers a compact footprint suitable for thin devices. Consider the differential input requirement for noise immunity in RF-heavy environments. Evaluate thermal management needs based on the junction-to-ambient resistance of the DFN package.

Part Context

This part belongs to the PAM8303C product line, which includes variants in WCSP9, MSOP-8, and DFN3x3-8 packages. The CCYC suffix specifically denotes the DFN3x3-8 configuration. Other family members share identical electrical characteristics but differ in physical dimensions and pinout compatibility.

Replacement Considerations

Direct replacements within the same family include PAM8303CBSC (MSOP-8) and PAM8303CBYC (DFN3x3-8). Cross-manufacturer substitutes like LM48511 may offer similar functionality but require verification of pinout and electrical parameter alignment.

FAQ

How does the filterless design impact PCB layout?

The filterless architecture removes the need for external inductors and capacitors typically used for EMI filtering, significantly reducing the required PCB area and simplifying the layout process.

What is the purpose of the SD pin?

The SD (Shutdown) pin allows the user to minimize power consumption by placing the amplifier in a low-power shutdown state when a logic low signal is applied.