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TPA3221DDVR +BOM

100-W stereo, 200-W mono, 7- to 32-V supply, analog input Class-D audio amplifier w/ low idle

TPA3221DDVR General Description

The TPA3221DDVR from Texas Instruments is an exceptional class-D amplifier designed for automotive audio systems and other high-quality audio applications. With a wide input voltage range and digital input, it seamlessly integrates with digital signal processors and offers high-fidelity sound reproduction. Its high efficiency and advanced protection mechanisms make it a reliable choice for audio system design, while its compact package size and configurable gain settings provide flexibility in system integration

Key Features

  • Wide 7-V to 30-V Supply Voltage Operation
  • Stereo (2 x BTL) and Mono (1 x PBTL) Operation
  • Output Power at 10% THD+N
    • 105-W Stereo into 4 Ω in BTL Configuration
    • 112-W Stereo into 3 Ω in BTL Configuration
    • 208-W Mono into 2 Ω in PBTL Configuration
  • Output Power at 1% THD+N
    • 88-W Stereo into 4 Ω in BTL Configuration
    • 100-W Stereo into 3 Ω in BTL Configuration
    • 170-W Mono into 2 Ω in PBTL Configuration
  • 5-V Gate Drive or Built-in LDO for Optional Single-Supply Operation
  • Closed-Loop Feedback Design
    • Signal Bandwidth up to 100 kHz for High-Frequency Content From HD Sources
    • 0.02% THD+N at 1 W into 4 Ω
    • 60-dB PSRR (BTL, No Input Signal)
    • <75-µV Output Noise (A-Weighted)
    • >108-dB SNR (A-Weighted)
    • AD or HEAD Modulation Schemes
  • Low-Power Operating Modes
    • Standby Modes: Mute and < 1 mA 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: 18 dB, 24 dB, 30 dB, 34 dB
  • Integrated Protection: Undervoltage, Overvoltage, Cycle-by-cycle Current Limit, Short Circuit, Clipping Detection, Overtemperature Warning and Shutdown, and DC Speaker Protection
  • 90% Efficient Class-D Operation (4 Ω)
  • Pin-Compatible Family of Devices with Voltage and Power-Level Options

Specifications

Audio input type Analog Input Architecture Class-D
Speaker channels (max) Stereo Rating Catalog
Power stage supply (max) (V) 30 Power stage supply (min) (V) 7
Load (min) (Ω) 1 Output power (W) 100
SNR (dB) 108 THD + N at 1 kHz (%) 0.02
Iq (typ) (mA) 15 Control interface Hardware
Closed/open loop Closed Analog supply (min) (V) 5
Analog supply voltage (max) (V) 30 PSRR (dB) 60
Operating temperature range (°C) -40 to 85

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