TPA6047 Series
2-W, stereo Class-AB speaker & headphone amplifier, 4.75-V LDO & active high enable
Manufacturer: Texas Instruments
Catalog(1 parts)
| Part | Max Output Power x Channels @ Load▲▼ | Voltage - Supply▲▼ | Voltage - Supply▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Output Type | Type | Mounting Type | Features | Supplier Device Package | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPA6047A4RHBRAmplifier IC 2-Channel (Stereo) with Stereo Headphones Class AB 32-VQFN (5x5) | 0.10000000149011612 W, 2.5999999046325684 W | 5.5 V | 4.5 V | 85 °C | -40 °C | 2-Channel (Stereo) with Stereo Headphones | Class AB | Surface Mount | Differential Inputs, Short-Circuit and Thermal Protection, Shutdown | 32-VQFN (5x5) | 32-VFQFN Exposed Pad |
Key Features
• Microsoft Windows Vista CompliantFully Differential Architecture and High PSRR Provide Excellent RF Rectification Immunity2.1-W, 1% THD+N Into 4-Ω Speakers and 100-mW, 10% THD+N Into 16-Ω Headphones From 5-V SupplyDirectPathHeadphone Amplifier Eliminates Output Capacitors(1)Internal 4-Step Speaker Gain Control: 10, 12, 15.6, 21.6 dB and Fixed -1.5-V/V Headphone4.75-V Low Dropout Regulator for CODECIndependent Shutdown Controls for Speaker, Headphone Amplifier, and Low Dropout Regulator (LDO)Output Short-Circuit and Thermal ProtectionAPPLICATIONSNotebook ComputersPortable DVDMicrosoft Windows Vista CompliantFully Differential Architecture and High PSRR Provide Excellent RF Rectification Immunity2.1-W, 1% THD+N Into 4-Ω Speakers and 100-mW, 10% THD+N Into 16-Ω Headphones From 5-V SupplyDirectPathHeadphone Amplifier Eliminates Output Capacitors(1)Internal 4-Step Speaker Gain Control: 10, 12, 15.6, 21.6 dB and Fixed -1.5-V/V Headphone4.75-V Low Dropout Regulator for CODECIndependent Shutdown Controls for Speaker, Headphone Amplifier, and Low Dropout Regulator (LDO)Output Short-Circuit and Thermal ProtectionAPPLICATIONSNotebook ComputersPortable DVD
Description
AI
The TPA6047A4 is a stereo audio power amplifier and DirectPath headphone amplifier in a thermally enhanced, space-saving, 32-pin QFN package. The speaker amplifier is capable of driving 2.1 W per channel continuously into 4-Ω loads at 5 V. The headphone amplifier achieves a minimum of 100 mW at 10% THD+N from a 5-V supply. A built-in internal 4-step gain control for the speaker amplifier and a fixed -1.5 V/V gain for the headphone amplifier minimizes external components needed.
Independent shutdown control and dedicated inputs for the speaker and headphone allow the TPA6047A4 to simultaneously drive both headphones and internal speakers. Differential inputs to the speaker amplifiers offer superior power-supply and common-mode noise rejection.
The TPA6047A4 is a stereo audio power amplifier and DirectPath headphone amplifier in a thermally enhanced, space-saving, 32-pin QFN package. The speaker amplifier is capable of driving 2.1 W per channel continuously into 4-Ω loads at 5 V. The headphone amplifier achieves a minimum of 100 mW at 10% THD+N from a 5-V supply. A built-in internal 4-step gain control for the speaker amplifier and a fixed -1.5 V/V gain for the headphone amplifier minimizes external components needed.
Independent shutdown control and dedicated inputs for the speaker and headphone allow the TPA6047A4 to simultaneously drive both headphones and internal speakers. Differential inputs to the speaker amplifiers offer superior power-supply and common-mode noise rejection.