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Amplificadores de audio
Amplificadores de audio para altavoces, TV y barra de sonido

TPA3221

ACTIVO

Amplificador de audio estéreo de 100 W y mono de 200 W, Clase D, entrada analógica y alimentación de

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TPA3221

ACTIVO
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Detalles del producto

Audio input type Analog Input Architecture Class-D Speaker channels (max) Stereo Control interface Hardware Output power (W) 100 Power stage supply (max) (V) 30 Power stage supply (min) (V) 7 RDS(on) (Ω) 0.07 THD + N at 1 kHz (%) 0.02 Load (min) (Ω) 1 Analog supply voltage (min) (V) 5 Analog supply voltage (max) (V) 30 Rating Catalog Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-D Speaker channels (max) Stereo Control interface Hardware Output power (W) 100 Power stage supply (max) (V) 30 Power stage supply (min) (V) 7 RDS(on) (Ω) 0.07 THD + N at 1 kHz (%) 0.02 Load (min) (Ω) 1 Analog supply voltage (min) (V) 5 Analog supply voltage (max) (V) 30 Rating Catalog Operating temperature range (°C) -40 to 85
HTSSOP (DDV) 44 113.4 mm² (14 mm × 8.1 mm)
  • Wide 7V to 30V Supply Voltage Operation
  • Stereo (2 x BTL) and mono (1 x PBTL) operation
  • Output Power at 10% THD+N
    • 105W Stereo into 4Ω in BTL Configuration
    • 112W Stereo into 3Ω in BTL Configuration
    • 208W Mono into 2Ω in PBTL Configuration
  • Output Power at 1% THD+N
    • 88W Stereo into 4Ω in BTL Configuration
    • 100W Stereo into 3Ω in BTL Configuration
    • 170W Mono into 2Ω in PBTL Configuration
  • 5V Gate drive or built-in LDO for optional single-supply operation
  • Closed-loop feedback design
    • Signal Bandwidth up to 100kHz for High-Frequency Content From HD Sources
    • 0.02% THD+N at 1W into 4Ω
    • 60dB PSRR (BTL, No input signal)
    • <75µV output noise (A-weighted)
    • >108dB SNR (A-weighted)
    • AD or HEAD modulation schemes
  • Low-Power operating modes
    • Standby modes: mute and < 1mA shutdown
    • Low Idle-current HEAD modulation scheme
    • Single-channel BTL operation
  • Multiple input options to simplify pre-amp design
    • Differential or single-ended analog inputs
    • Selectable Gains: 18dB, 24dB, 30dB, 34dB
  • Integrated Protection: Undervoltage, Cycle-by-cycle Current Limit, Short Circuit, Clipping Detection, Overtemperature Warning and Shutdown, and DC Speaker Protection
  • 90% Efficient Class-D Operation (4Ω)
  • Thermal pad located on package bottom
  • Pin-compatible family of devices with voltage and power-level options
  • Wide 7V to 30V Supply Voltage Operation
  • Stereo (2 x BTL) and mono (1 x PBTL) operation
  • Output Power at 10% THD+N
    • 105W Stereo into 4Ω in BTL Configuration
    • 112W Stereo into 3Ω in BTL Configuration
    • 208W Mono into 2Ω in PBTL Configuration
  • Output Power at 1% THD+N
    • 88W Stereo into 4Ω in BTL Configuration
    • 100W Stereo into 3Ω in BTL Configuration
    • 170W Mono into 2Ω in PBTL Configuration
  • 5V Gate drive or built-in LDO for optional single-supply operation
  • Closed-loop feedback design
    • Signal Bandwidth up to 100kHz for High-Frequency Content From HD Sources
    • 0.02% THD+N at 1W into 4Ω
    • 60dB PSRR (BTL, No input signal)
    • <75µV output noise (A-weighted)
    • >108dB SNR (A-weighted)
    • AD or HEAD modulation schemes
  • Low-Power operating modes
    • Standby modes: mute and < 1mA shutdown
    • Low Idle-current HEAD modulation scheme
    • Single-channel BTL operation
  • Multiple input options to simplify pre-amp design
    • Differential or single-ended analog inputs
    • Selectable Gains: 18dB, 24dB, 30dB, 34dB
  • Integrated Protection: Undervoltage, Cycle-by-cycle Current Limit, Short Circuit, Clipping Detection, Overtemperature Warning and Shutdown, and DC Speaker Protection
  • 90% Efficient Class-D Operation (4Ω)
  • Thermal pad located on package bottom
  • Pin-compatible family of devices with voltage and power-level options

TPA3221 is a high-power Class-D amplifier that enables efficient operation at full-power, idle and standby. The device features closed-loop feedback with a bandwidth up to 100kHz, which provides low distortion across the audio band and delivers excellent sound quality. The device operates with either AD or low idle-current HEAD (High Efficient AD mode) modulation, and can drive up to 2 x 105W into 4Ω load or 1 x 208W into 2Ω load.

The TPA3221 features a single-ended or differential analog-input interface that supports up to 2VRMS with four selectable gains: 18dB, 24dB, 30dB and 34dB. The TPA3221 also achieves >90% efficiency, low idle power (<0.25W) and ultra-low standby power (<0.1W). This is made possible through the use of 70mΩ MOSFETs, an optimized gate drive scheme and low-power operating modes. TPA3221 includes a built-in LDO for easy integration in single-power-supply systems. To further simplify the design, the device integrates essential protection features including undervoltage, cycle-by-cycle current limit, short circuit, clipping detection, overtemperature warning and shutdown, as well as DC speaker protection.

TPA3221 is a high-power Class-D amplifier that enables efficient operation at full-power, idle and standby. The device features closed-loop feedback with a bandwidth up to 100kHz, which provides low distortion across the audio band and delivers excellent sound quality. The device operates with either AD or low idle-current HEAD (High Efficient AD mode) modulation, and can drive up to 2 x 105W into 4Ω load or 1 x 208W into 2Ω load.

The TPA3221 features a single-ended or differential analog-input interface that supports up to 2VRMS with four selectable gains: 18dB, 24dB, 30dB and 34dB. The TPA3221 also achieves >90% efficiency, low idle power (<0.25W) and ultra-low standby power (<0.1W). This is made possible through the use of 70mΩ MOSFETs, an optimized gate drive scheme and low-power operating modes. TPA3221 includes a built-in LDO for easy integration in single-power-supply systems. To further simplify the design, the device integrates essential protection features including undervoltage, cycle-by-cycle current limit, short circuit, clipping detection, overtemperature warning and shutdown, as well as DC speaker protection.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos TPA3221 100W Stereo, 200W Mono HD-Audio, Analog-Input, Class-D Amplifier datasheet (Rev. C) PDF | HTML 16/05/2025
Nota sobre la aplicación LC Filter Design (Rev. B) PDF | HTML 29/06/2026
Application brief Speaker, TV, Soundbar Audio Amplifiers: Features, Benefits, and Selection Guide PDF | HTML 11/03/2026
Nota sobre la aplicación Class-D Amplifier External Load Diagnostics (Rev. A) PDF | HTML 17/07/2025
Más documentación High-Power Audio Amplifiers TPA322x/4x/5x 1/12/2017
Application brief High Efficiency AD (HEAD) Modulation 18/10/2017
Nota sobre la aplicación Multi-Device Configuration for TPA32xx Amplifiers 27/09/2017
Nota sobre la aplicación TPA32xx Analog Input Grounding for Single Ended Inputs PDF | HTML 26/08/2016

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

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Placa de evaluación

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GUI para el módulo de evaluación (EVM)

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Soporte y capacitación

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