PAM8902HKER

Overview

The PAM8902HKER is a mono Class-D audio amplifier with an integrated boost converter, designed for piezo and ceramic speakers. It delivers a 30VPP output from a 2.5V to 5.5V supply. The internal boost converter operates at 1.5MHz, generating up to 17.5V. Gain modes are selectable at 21dB, 26dB, or 32.5dB via the GSET pin. Boost voltage is programmable to 8V, 12V, or 17.5V using the VSET pin. Shutdown current is less than 1µA. It includes thermal, short-circuit, overvoltage, and undervoltage protection.

Feature Summary

• Integrated boost converter generates high voltage for piezo/ceramic speaker driving
• Programmable gain settings of 21dB, 26dB, and 32.5dB
• Adjustable boost output voltage levels of 8V, 12V, and 17.5V
• Low shutdown current consumption below 1µA

Applications

• Wireless or cellular handsets
• Portable DVD players
• Personal digital assistants (PDAs)
• Electronic dictionaries
• Digital still cameras

Procurement Notes

Verify component authenticity through authorized Diodes Incorporated channels. Confirm package type matches W-QFN4040-16 specifications. Check datasheet revision DS36453 Rev. 6-3 for latest electrical characteristics. Ensure environmental compliance documentation aligns with project requirements. Validate ordering suffix KE corresponds to the correct standard package variant.

Selection Notes

Select this component when driving piezo or ceramic speakers requiring high peak-to-peak voltage from low supply rails. Choose based on required gain configuration and boost voltage settings. Consider thermal resistance values for PCB layout planning. Evaluate space constraints against the compact W-QFN4040-16 package dimensions. Verify input signal compatibility with differential architecture.

Part Context

This part belongs to the PAM8902H series of mono Class-D amplifiers. It shares functional similarities with other models in the family but differs in packaging options. The HKER suffix specifically denotes the W-QFN4040-16 standard package. Other variants include CSP-16L packages. The series targets portable electronic devices needing efficient audio amplification.

Replacement Considerations

PAM8902HZER serves as a direct replacement offering identical functionality in a CSP-16L package. Both parts share the same core amplifier architecture and electrical specifications. Selection depends primarily on available board space and preferred mounting style. Verify pinout compatibility during design transition.