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音訊放大器
喇叭、電視與條型音箱音訊放大器

TPA3221

現行

具有低待機電流的 100-W 立體聲道、200-W 單聲道、7 至 32-V、類比輸入 D 類音訊放大器

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產品規格表

TPA3221

現行
產品規格表 立即訂購

產品詳細資料

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 x 8.1
  • 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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TPA3223 現行 具有低待機電流的 200-W 立體聲道、400-W 單聲道、10 至 45-V、類比輸入 D 類音訊放大器 Higher output power (200-W), higher input voltage (45-V), pad-up package

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類型 標題 日期
* Data sheet TPA3221 100W Stereo, 200W Mono HD-Audio, Analog-Input, Class-D Amplifier datasheet (Rev. C) PDF | HTML 2025年 5月 16日
Application note Class-D Amplifier External Load Diagnostics (Rev. A) PDF | HTML 2025年 7月 17日
More literature High-Power Audio Amplifiers TPA322x/4x/5x 2017年 12月 1日
Application brief High Efficiency AD (HEAD) Modulation 2017年 10月 18日
Application note Multi-Device Configuration for TPA32xx Amplifiers 2017年 9月 27日
Application note LC Filter Design (Rev. A) 2016年 11月 9日
Application note TPA32xx Analog Input Grounding for Single Ended Inputs PDF | HTML 2016年 8月 26日

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SLAC766 — TPA3221 & TPA3220 Setup Guide & Configuration Tool

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