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喇叭、電視與條型音箱音訊放大器

TPA3126D2

現行

具低無效電流的 50-W 立體聲道、100-W 單聲道、4.5 至 26-V 類比輸入 D 級音訊放大器

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產品規格表

TPA3126D2

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) 50 Power stage supply (max) (V) 26 Power stage supply (min) (V) 4.5 RDS(on) (Ω) 0.09 THD + N at 1 kHz (%) 0.02 Load (min) (Ω) 4 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 26 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) 50 Power stage supply (max) (V) 26 Power stage supply (min) (V) 4.5 RDS(on) (Ω) 0.09 THD + N at 1 kHz (%) 0.02 Load (min) (Ω) 4 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 26 Rating Catalog Operating temperature range (°C) -40 to 85
HTSSOP (DAD) 32 89.1 mm² (11 mm × 8.1 mm)
  • Longer Battery-Operating Time:
    • Ultra-Low Idle Current: 15 mA at 12 V
  • 2 × 50 W Into a 4-Ω Load at 21 V, 10% THD+N
  • Wide Voltage Range: 4.5 V to 26 V
  • Highly Efficient Class-D Operation
    • Hybrid Modulation Scheme Dynamically Reduces Power Loss
    • Low Rds(on) of 90-mΩ Enables > 90% Efficiency
  • Pop-and-Click Noise Suppression
  • Supports Stereo, Mono BTL and Mono PBTL
  • Multiple Switching Frequencies:
    • AM Avoidance
    • Master and Slave Synchronization
    • 300-KHz to 1.2-MHz Switching Frequencies
  • Selectable Gains: 20 dB, 26 dB, 32 dB, 36 dB
  • Programmable Power Limit
  • Supports Both Single and Dual Power Supply
  • Integrated Protections with Error Report:
    • Overvoltage, Undervoltage, Overtemperature, DC-Detect, and Short Circuit
  • Thermally Enhanced Package
    • DAD (32-Pin HTSSOP PowerPAD™ Up)
  • Performance Upgrade of the TPA3116D2
    • 70% Less Idle Current; Pin-to-Pin Compatible
  • Longer Battery-Operating Time:
    • Ultra-Low Idle Current: 15 mA at 12 V
  • 2 × 50 W Into a 4-Ω Load at 21 V, 10% THD+N
  • Wide Voltage Range: 4.5 V to 26 V
  • Highly Efficient Class-D Operation
    • Hybrid Modulation Scheme Dynamically Reduces Power Loss
    • Low Rds(on) of 90-mΩ Enables > 90% Efficiency
  • Pop-and-Click Noise Suppression
  • Supports Stereo, Mono BTL and Mono PBTL
  • Multiple Switching Frequencies:
    • AM Avoidance
    • Master and Slave Synchronization
    • 300-KHz to 1.2-MHz Switching Frequencies
  • Selectable Gains: 20 dB, 26 dB, 32 dB, 36 dB
  • Programmable Power Limit
  • Supports Both Single and Dual Power Supply
  • Integrated Protections with Error Report:
    • Overvoltage, Undervoltage, Overtemperature, DC-Detect, and Short Circuit
  • Thermally Enhanced Package
    • DAD (32-Pin HTSSOP PowerPAD™ Up)
  • Performance Upgrade of the TPA3116D2
    • 70% Less Idle Current; Pin-to-Pin Compatible

The TPA3126D2 is a 50-W, stereo, low-idle-current Class-D amplifier in a thermally enhanced package. The TPA3126D2 includes TI’s proprietary hybrid modulation scheme, which dynamically reduces idle current at low power levels to extend the battery life of portable audio systems, like bluetooth speakers.

To further simply the design, the Class-D amplifier integrates full protection features including short circuit, thermal shutdown, overvoltage, undervoltage, and DC speaker protection. Faults are reported back to the processor to prevent devices from being damaged during overload conditions.

The TPA3126D2 is a 50-W, stereo, low-idle-current Class-D amplifier in a thermally enhanced package. The TPA3126D2 includes TI’s proprietary hybrid modulation scheme, which dynamically reduces idle current at low power levels to extend the battery life of portable audio systems, like bluetooth speakers.

To further simply the design, the Class-D amplifier integrates full protection features including short circuit, thermal shutdown, overvoltage, undervoltage, and DC speaker protection. Faults are reported back to the processor to prevent devices from being damaged during overload conditions.
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* 資料表 TPA3126D2 50-W Stereo, Analog-Input, Class-D Audio Amplifier with Low, 15-mA Idle Current and AM Avoidance datasheet PDF | HTML 2018/4/3

設計與開發

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開發板

TPA3126D2EVM — TPA3126D2 無電感器 50W 立體聲道 (BTL) D 類音訊放大器評估模組

TPA3126D2EVM 可評估 TPA3126D2。這是一款高效率的 D 類音訊功率放大器，用於驅動 2 個橋接式立體聲喇叭，每聲道 50W。
使用指南: PDF
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模擬型號

TPA3126D2 TINA-TI Reference Design (Rev. A)

SLOM447A.TSC (96 KB) - TINA-TI 參考設計
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模擬型號

TPA3126D2 TINA-TI Transient Spice Model

SLOM446.ZIP (42 KB) - TINA-TI Spice 模型
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參考設計

TIDA-050024 — 適用於中功率音訊功率放大器的封包追蹤電源供應參考設計

此參考設計提供封包追蹤電源供應電路，適合配備 TPS43061 升壓控制器的中功率音訊功率放大器 (PA) 應用。將音訊封包訊號新增至 FB 接腳後，升壓轉換器的輸出電壓便可隨音訊訊號封包而改變。升壓轉換器可為 PA 提供動態變化的供應電壓。因此， PA 在輸出功率範圍內總是以高效率運作。
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (DAD) 32 Ultra Librarian
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