PAM8902AZER

Overview

The PAM8902AZER 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 3.6V supply. The device features selectable gain settings of 18dB, 22dB, and 26dB, along with anti-saturation technology to prevent clipping. Operating conditions include a supply voltage range of 2.7V to 5.5V and a shutdown current below 1µA. It incorporates thermal, over-current, under-voltage lockout, and over-voltage protection. The component is housed in a CSP-16L package.

Feature Summary

• Integrated boost converter generates up to 17.5V supply for driving high-voltage piezo loads
• Anti-saturation function automatically adjusts gain to eliminate signal clipping
• Low shutdown current consumption ensures extended battery life in portable devices
• Comprehensive protection circuitry includes thermal shutdown and over-current limiting

Applications

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

Procurement Notes

Verify the specific ordering suffix 'ZER' corresponds to the CSP-16L package configuration as documented in the manufacturer's ordering information. Confirm that the component revision matches the latest datasheet specifications. Ensure compliance with RoHS standards if required by your manufacturing process. Check for any lifecycle status updates regarding new design recommendations.

Selection Notes

Select this component when designing circuits requiring high-efficiency amplification for piezoelectric or ceramic sounders. The integrated boost converter simplifies power management by eliminating external high-voltage generation requirements. Consider the available gain settings and anti-saturation capabilities for applications demanding high fidelity without distortion. Evaluate the space-saving CSP package for compact handheld device designs.

Part Context

This part belongs to the PAM8902 product line from Diodes Incorporated, specialized for audio amplification in portable electronics. The series focuses on Class-D efficiency combined with piezo speaker compatibility. The PAM8902AZER variant specifically utilizes the chip-scale package format, distinguishing it from QFN alternatives within the same functional family.

Replacement Considerations

The datasheet explicitly recommends using the PAM8902H instead of the PAM8902A for new designs.