Product details

Audio input type Analog Input Architecture Class-D Speaker channels (Max) Mono Power stage supply (Max) (V) 5.5 Power stage supply (Min) (V) 2.5 Load (Min) (ohms) 8 Output power (W) 1.4 SNR (dB) 97 THD + N @ 1 kHz (%) 0.2 Iq (Typ) (mA) 2.8 Control interface Hardware Closed/open loop Closed Analog supply (Min) (V) 2.5 Analog supply (Max) (V) 5.5 PSRR (dB) 75 Operating temperature range (C) -40 to 85
Audio input type Analog Input Architecture Class-D Speaker channels (Max) Mono Power stage supply (Max) (V) 5.5 Power stage supply (Min) (V) 2.5 Load (Min) (ohms) 8 Output power (W) 1.4 SNR (dB) 97 THD + N @ 1 kHz (%) 0.2 Iq (Typ) (mA) 2.8 Control interface Hardware Closed/open loop Closed Analog supply (Min) (V) 2.5 Analog supply (Max) (V) 5.5 PSRR (dB) 75 Operating temperature range (C) -40 to 85
HVSSOP (DGN) 8 9 mm² 3 x 3 VSON (DRB) 8 VSON (DRB) 8 9 mm² 3.0 x 3.0
  • 1.4 W Into 8 Ω From a 5 V Supply at THD = 10% (Typ)
  • Maximum Battery Life and Minimum Heat
    • Efficiency With an 8-Ω Speaker:
      • 84% at 400 mW
      • 79% at 100 mW
    • 2.8-mA Quiescent Current
    • 0.5-μA Shutdown Current
  • Capable of Driving an 8-Ω Speaker (2.5 V ≤ VDD ≤ 5.5 V) and a 4-Ω Speaker (2.5 V ≤ VDD ≤ 4.2 V)
  • Only Three External Components
    • Optimized PWM Output Stage Eliminates LC Output Filter
    • Internally Generated 250-kHz Switching Frequency Eliminates Capacitor & Resistor
    • Improved PSRR (–71 dB at 217 Hz) and Wide Supply Voltage (2.5 V to 5.5 V) Eliminates Need for a Voltage Regulator
    • Fully Differential Design Reduces RF Rectification & Eliminates Bypass Capacitor
    • Improved CMRR Eliminates Two Input Coupling Capacitors
  • Space Saving Package
    • 3 mm × 3 mm QFN package (DRB)
    • 2.5 mm × 2.5 mm MicroStar Junior BGA Package (ZQY)
    • 3 mm x 5 mm MSOP PowerPAD Package (DGN)
  • Use TPA2006D1 for 1.8 V Logic Compatibility on Shutdown Pin

All trademarks are the property of their respective owners.

  • 1.4 W Into 8 Ω From a 5 V Supply at THD = 10% (Typ)
  • Maximum Battery Life and Minimum Heat
    • Efficiency With an 8-Ω Speaker:
      • 84% at 400 mW
      • 79% at 100 mW
    • 2.8-mA Quiescent Current
    • 0.5-μA Shutdown Current
  • Capable of Driving an 8-Ω Speaker (2.5 V ≤ VDD ≤ 5.5 V) and a 4-Ω Speaker (2.5 V ≤ VDD ≤ 4.2 V)
  • Only Three External Components
    • Optimized PWM Output Stage Eliminates LC Output Filter
    • Internally Generated 250-kHz Switching Frequency Eliminates Capacitor & Resistor
    • Improved PSRR (–71 dB at 217 Hz) and Wide Supply Voltage (2.5 V to 5.5 V) Eliminates Need for a Voltage Regulator
    • Fully Differential Design Reduces RF Rectification & Eliminates Bypass Capacitor
    • Improved CMRR Eliminates Two Input Coupling Capacitors
  • Space Saving Package
    • 3 mm × 3 mm QFN package (DRB)
    • 2.5 mm × 2.5 mm MicroStar Junior BGA Package (ZQY)
    • 3 mm x 5 mm MSOP PowerPAD Package (DGN)
  • Use TPA2006D1 for 1.8 V Logic Compatibility on Shutdown Pin

All trademarks are the property of their respective owners.

The TPA2005D1 is a 1.4-W high efficiency filter-free class-D audio power amplifier in a MicroStar Junior™ BGA, QFN, or MSOP package that requires only three external components.

Features like 84% efficiency, –71-dB PSRR
at 217 Hz, improved RF-rectification immunity, and
15 mm2 total PCB area make the TPA2005D1 ideal for cellular handsets. A fast start-up time of 9 ms with minimal pop makes the TPA2005D1 ideal for PDA applications.

In cellular handsets, the earpiece, speaker phone, and melody ringer can each be driven by the TPA2005D1. The device allows independent gain control by summing the signals from each function while minimizing noise to only 48 μVRMS.

The TPA2005D1 has short-circuit and thermal protection.

The TPA2005D1 is a 1.4-W high efficiency filter-free class-D audio power amplifier in a MicroStar Junior™ BGA, QFN, or MSOP package that requires only three external components.

Features like 84% efficiency, –71-dB PSRR
at 217 Hz, improved RF-rectification immunity, and
15 mm2 total PCB area make the TPA2005D1 ideal for cellular handsets. A fast start-up time of 9 ms with minimal pop makes the TPA2005D1 ideal for PDA applications.

In cellular handsets, the earpiece, speaker phone, and melody ringer can each be driven by the TPA2005D1. The device allows independent gain control by summing the signals from each function while minimizing noise to only 48 μVRMS.

The TPA2005D1 has short-circuit and thermal protection.

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Technical documentation

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Type Title Date
* Data sheet TPA2005D1 1.4-W MONO Filter-Free Class-D Audio Power Amplifier datasheet (Rev. G) 27 Oct 2015
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 26 Aug 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 27 Jun 2019
Application note AN-1737 Managing EMI in Class D Audio Applications (Rev. A) 01 May 2013
Application note Measuring Class-D Amplifiers for Audio Speaker Overstress Testing 28 Oct 2005
Application note Power Rating in Audio Amplifier (Rev. A) 04 Mar 2005
User guide TPA2005D1EVM - User Guide 27 Jun 2002

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPA2005D1EVM — TPA2005D1 Evaluation Module (EVM)

The TPA2005D1 is a 1-W high efficiency filter-free class-D audio power amplifier in a MicroStar™ BGA package that requires only three external components. It is ideal for small battery operated electronics including wireless or cellular handsets, personal digitalassistants (PDAs), and voice (...)

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Simulation model

TPA2005D1 PSpice Transient Model (Rev. A)

SLOM184A.ZIP (84 KB) - PSpice Model
Simulation model

TPA2005D1 TINA-TI Transient Spice Model

SLOM185.ZIP (17 KB) - TINA-TI Spice Model
Simulation model

TPA2005D1 TINA-TI Transient Reference Design

SLOM186.TSC (26 KB) - TINA-TI Reference Design
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Reference designs

TIDA-010040 — Alarm tone generator reference design

This reference design provides a way of generating alarms similar to as described in the IEC60601-1-8 standard for medical devices. The critical timing parameters are programmable through firmware. All parameters, including pulse width, pulse rate, internal frequency, pulse rise time, volume (...)
Package Pins Download
HVSSOP (DGN) 8 View options
SON (DRB) 8 View options

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