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Product Detailed Parameters
- Description：IC AMP CLASS D MONO 16QFN
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Type：Class D
- Output Type：1-Channel (Mono)
- Max Output Power x Channels @ Load：-
- Voltage - Supply：2.7V ~ 5.5V
- Features：Short-Circuit and Thermal Protection
- Mounting Type：Surface Mount
- Supplier Device Package：16-QFN (4x4)
- Package / Case：16-VQFN Exposed Pad
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The PAM8902AKER is a mono Class-D audio amplifier with an integrated boost converter, designed for piezo and ceramic speakers. It operates on a supply voltage range of 2.7V to 5.5V and delivers a 30VPP output from a 3.6V supply. The device features selectable gain settings of 18dB, 22dB, and 26dB, alongside anti-saturation technology to prevent clipping. It includes thermal shutdown, over-current protection, under-voltage lockout, and over-voltage protection. The component is housed in a 16-pin QFN4x4 package.
Feature Summary
- Integrated boost converter generates up to 17.5V supply for driving high-voltage piezo or ceramic speakers
- Anti-saturation function automatically adjusts gain to eliminate signal clipping
- Programmable soft-start and low shutdown current consumption below 1µA
- Comprehensive protection circuitry including thermal, over-current, under-voltage lockout, and over-voltage protection
Applications
- Wireless or cellular handsets
- Portable DVD players
- Personal digital assistants (PDAs)
- Electronic dictionaries
- Digital still cameras
Procurement Notes
Verify the part status carefully as this specific model may be discontinued or marked as not recommended for new designs. Confirm availability through authorized distributors and check for official product change notices regarding end-of-life status before finalizing procurement plans.
Selection Notes
Select this component when driving piezo or ceramic speakers requiring high peak-to-peak voltage from a low-voltage supply. Ensure the application benefits from the integrated boost converter and anti-saturation features. Verify that the 16-pin QFN4x4 package fits the design constraints and that the fixed gain options meet the system requirements.
Part Context
This component belongs to the PAM8902A series by Diodes Incorporated, specifically engineered for portable audio applications. It replaces older designs by integrating the boost converter directly into the amplifier IC, reducing external component count. The QFN4x4 package offers a space-saving solution suitable for compact mobile devices.
Replacement Considerations
The datasheet explicitly recommends using the PAM8902H as a replacement for new designs. Verify pin compatibility and electrical specifications before substituting.
