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TPA2005D1DGNR

TITPA2005D1DGNR

Texas Instruments
Amplifier IC 1-Channel (Mono) Class D 8-HVSSOP
Active7,007 in stock
Datasheet Digi-Key Compare Prices

Overview

The TPA2005D1DGNR is a mono, filter-free Class D audio power amplifier capable of delivering 1.45W of continuous RMS power into an 8-ohm load. It operates over a wide voltage range of 2.5V to 5.5V, making it ideal for lithium-ion battery-powered applications. The device features a fully differential architecture that provides high PSRR and CMRR, eliminating the need for input coupling capacitors and an output filter.

Why Choose This Part

The filter-free design reduces component count and PCB area by removing the need for bulky LC filters. Its 250-kHz switching frequency and optimized PWM output stage provide high efficiency, while the differential design minimizes RF susceptibility and noise pickup.

Applications

Portable Communications
High-efficiency audio for mobile handsets and handheld radios where battery life and space are critical.
PDA and Portable Navigation
Voice prompts and alerts in compact mobile devices using the 2.5V to 5.5V supply range.
Industrial Alert Systems
Providing mono audio notifications in systems requiring thermal and short-circuit protection.

Key Specifications

Type Class D
Features Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
Output Type 1-Channel (Mono)
Mounting Type Surface Mount
Package / Case 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
Voltage - Supply 2.5V ~ 5.5V
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 8-HVSSOP
Max Output Power x Channels @ Load 1.45W x 1 @ 8Ohm

Getting Started

For rapid prototyping, use the TPA2005D1EVM evaluation module to test audio performance and thermal characteristics. Ensure the PowerPAD is soldered to a large copper plane for optimal heat dissipation as specified in the 8-HVSSOP thermal guidelines. Design the gain by selecting appropriate external input resistors to match your source signal levels.

TPA2005D1 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Stock
TPA2005D1DGNR (this part) TSSOP-8 7,007
TPA2005D1DRBQ1 VDFN-8 13,102
TPA2005D1DRBR VDFN-8 1,558
TPA2005D1EVM — 1
TPA2005D1DGNRQ1 TSSOP-8 14,265

Also Consider

PAM8301AAF DIODiodes Incorporated - A 1.5W mono Class-D amplifier in a smaller SOT-23-6 package for extremely space-constrained designs.
MAX98357A Analog Devices - An integrated I2S input Class-D amplifier that eliminates the need for an external DAC in digital systems.
TPA2012D2 TITexas Instruments - A stereo (2-channel) version of the filter-free Class-D architecture for applications requiring two speakers.