NAU83P20YGB

Description：20W CLASS-D POWER STAGE
Series：-
Mfr：Nuvoton Technology Corporation
Package：Tray

SKU:808ecbf04189 Category: Audio Amplifiers Brand: Nuvoton Technology Corporation

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Product introduction

Product Detailed Parameters

Description：20W CLASS-D POWER STAGE
Series：-
Mfr：Nuvoton Technology Corporation
Package：Tray
Type：Class D
Output Type：2-Channel (Stereo)
Max Output Power x Channels @ Load：20W x 2 @ 8Ohm
Voltage - Supply：4.5V ~ 24V
Features：-
Mounting Type：Surface Mount
Supplier Device Package：48-QFN (7x7)
Package / Case：48-VFQFN Exposed Pad
Operating Temperature：-40°C ~ 85°C (TA)
Grade：-
Qualification：-

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NAU83P20YGB

Overview

The NAU83P20YGB is a single-supply, 20W stereo Class-D audio power stage designed for driving bridge-tied load speakers. It operates from a PVDD supply range of 4.5V to 24V and delivers 2x20W into an 8-ohm load at 10% THD+N with 18V supply. The device features a typical power efficiency of 90%, a signal-to-noise ratio of 105dB, and supports multiple output configurations including 2-channel bridged, 4-channel single-ended, or mixed modes. It includes integrated under-voltage, over-current, and over-temperature detection.

Feature Summary

Supports flexible output configurations including stereo bridged, quad single-ended, and mixed mono/stereo setups.
Integrates comprehensive fault detection mechanisms for thermal overload, short circuits, and supply under-voltage.
Features a built-in 5V low-dropout regulator and requires minimal external components for bootstrap and bypass functions.

Applications

LCD TVs
TV sound bars
Automotive stereo systems
Portable media boom boxes
Home entertainment systems

Procurement Notes

Verify the specific ordering suffix YGB corresponds to the QFN-48 package variant when sourcing. Confirm that the application design accommodates the required 4.5V to 24V supply voltage range. Ensure proper PCB layout techniques are employed for the exposed pad to manage thermal dissipation effectively during operation.

Selection Notes

Select this component for applications requiring high-efficiency stereo amplification with configurable output topologies. Consider the 48-QFN package dimensions for board space constraints. Evaluate the need for external modulation filters based on EMI requirements and the specific PWM input frequencies utilized by the host controller.

Part Context

The NAU83P20YGB belongs to Nuvoton's NAU83P series of Class-D audio amplifiers. This series focuses on high-power, single-supply solutions for consumer electronics. The YGB suffix specifically denotes the green QFN-48 package variant within the broader product family.