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3D MSOP 8

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PAM8304

3W Mono Class D

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Description

The PAM8304 is a mono, filter-less, Class-D amplifier with high SNR (signal-to-noise ratio) and differential input that helps eliminate noise. The PAM8304 supports 2.8V to 6V operation, which makes it ideal for up to 4-cell alkaline battery applications. The PAM8304 is capable of driving speaker loads as low as 3Ω with a 5V supply, maximizing the output power.

The device’s over 90% efficiency and small PCB area make the PAM8304 Class-D amplifier ideal for portable applications. The output uses a filter-less architecture, minimizing the number of external components in the PCB area whilst providing a high-performance, simple, and lower cost system.

The PAM8304 features short-circuit protection, thermal shutdown, and undervoltage lockout.

The PAM8304 is available in the U-DFN3030-8 (Type E) and MSOP-8 packages.

Feature(s)

  • Supply Voltage from 2.8V to 6.0V
  • 3Ω Driving Capability
  • 0W@10% THD Output with a 4Ω Load and 5V Supply
  • High Efficiency Up to 90% @1W with an 8Ω Load
  • Shutdown Current < 1μA
  • Superior Low Noise Without Input
  • Short-Circuit Protection
  • Thermal Shutdown
  • Available in Space-Saving U-DFN3030-8 (Type E) and MSOP-8 Packages
  • Pb-Free Package
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/

Application(s)

  • MP4/MP3
  • GPS
  • Set-top-boxes
  • Tablets/digital photo frames
  • Electronic dictionaries
  • Portable game machines

Specifications & Technical Documents

Product Parameters

Compliance (Only Automotive Supports PPAP)

Standard

AEC Qualified

No

Input Type

Analog In

Category

Speaker Amplifier

Minimum VDD (V)

2.8

Maximum VDD (V)

6 V

Mono or Stereo

Mono

Architecture

Class D

IQ (mA)

5 mA

Minimum Load (Ω)

4

Control Interface

Hardware

Power/CH (W) @ THD=10%

3

Power/CH (W) @ THD=1%

2.4

Headphone Out

No

Efficiency (%)

93 %

SNR

87 dB

Related Content

Packages

Technical Documents

Evaluation Boards and User Guides

Recommended Soldering Techniques

TN1.pdf

Purchase & Availability

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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2770 2025-10-30 2025-10-30 Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products
PCN-2512 2021-04-16 2021-07-16 Qualified Additional Assembly & Test (A/T) Site