TPA3220 Series
60-W stereo, 110-W mono, 7- to 32-V, analog input Class-D audio amplifier w/ low idle, pad-down
Manufacturer: Texas Instruments
Catalog
60-W stereo, 110-W mono, 7- to 32-V, analog input Class-D audio amplifier w/ low idle, pad-down
Key Features
• Stereo (2 x BTL) and Mono (1 x PBTL) OperationOutput Power at 10% THD+N60-W Stereo Continuous into 8 Ω in BTL110-W Stereo Peak into 4 Ω in BTLOutput Power at 1% THD+N50-W Stereo Continuous into 8 Ω in BTL89-W Stereo Peak into 4 Ω in BTL5-V Gate Drive or Built-in LDO for Optional Single-Supply OperationClosed-Loop Feedback DesignSignal Bandwidth up to 100 kHz for High-Frequency Content From HD Sources0.02% THD+N at 1 W into 4 Ω60-dB PSRR (BTL, No Input Signal)<72-µV Output Noise (A-Weighted)>108-dB SNR (A-Weighted)AD or HEAD Modulation SchemesLow-Power Operating ModesStandby Modes: Mute and < 1 mA ShutdownLow Idle-Current HEAD Modulation SchemeSingle-Channel BTL OperationMultiple Input Options to Simplify Pre-Amp DesignDifferential or Single-Ended Analog InputsSelectable Gains: 18 dB, 24 dB, 30 dB, 34 dBIntegrated Protection: Undervoltage, Cycle-by-cycle Current Limit, Short Circuit, Clipping Detection, Overtemperature Warning and Shutdown, and DC Speaker Protection90% Efficient Class-D Operation (4 Ω)Thermal Pad Located on Package BottomPin-Compatible Family of Devices with Voltage and Power-Level OptionsStereo (2 x BTL) and Mono (1 x PBTL) OperationOutput Power at 10% THD+N60-W Stereo Continuous into 8 Ω in BTL110-W Stereo Peak into 4 Ω in BTLOutput Power at 1% THD+N50-W Stereo Continuous into 8 Ω in BTL89-W Stereo Peak into 4 Ω in BTL5-V Gate Drive or Built-in LDO for Optional Single-Supply OperationClosed-Loop Feedback DesignSignal Bandwidth up to 100 kHz for High-Frequency Content From HD Sources0.02% THD+N at 1 W into 4 Ω60-dB PSRR (BTL, No Input Signal)<72-µV Output Noise (A-Weighted)>108-dB SNR (A-Weighted)AD or HEAD Modulation SchemesLow-Power Operating ModesStandby Modes: Mute and < 1 mA ShutdownLow Idle-Current HEAD Modulation SchemeSingle-Channel BTL OperationMultiple Input Options to Simplify Pre-Amp DesignDifferential or Single-Ended Analog InputsSelectable Gains: 18 dB, 24 dB, 30 dB, 34 dBIntegrated Protection: Undervoltage, Cycle-by-cycle Current Limit, Short Circuit, Clipping Detection, Overtemperature Warning and Shutdown, and DC Speaker Protection90% Efficient Class-D Operation (4 Ω)Thermal Pad Located on Package BottomPin-Compatible Family of Devices with Voltage and Power-Level Options
Description
AI
TPA3220 is a pad-down Class-D amplifier that enables efficient operation at full-power, idle and standby. The device features closed-loop feedback with a bandwidth up to 100 kHz, 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 Efficiency AD) modulation and can drive up to 2 x 60 W continuously or 2 x 110 W peak into 4-Ω load with the thermal pad on bottom connected to the PCB.
The TPA3220 features a single-ended or differential analog-input interface that supports up to 2 VRMSwith four selectable gains: 18 dB, 24 dB, 30 dB and 34 dB. The TPA3220 also achieves >90% efficiency, low idle power (<0.25 W) and ultra-low standby power (<0.1 W). This is made possible through the use of 70-mΩ MOSFETs, an optimized gate drive scheme and low-power operating modes. TPA3220 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.
TPA3220 is a pad-down Class-D amplifier that enables efficient operation at full-power, idle and standby. The device features closed-loop feedback with a bandwidth up to 100 kHz, 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 Efficiency AD) modulation and can drive up to 2 x 60 W continuously or 2 x 110 W peak into 4-Ω load with the thermal pad on bottom connected to the PCB.
The TPA3220 features a single-ended or differential analog-input interface that supports up to 2 VRMSwith four selectable gains: 18 dB, 24 dB, 30 dB and 34 dB. The TPA3220 also achieves >90% efficiency, low idle power (<0.25 W) and ultra-low standby power (<0.1 W). This is made possible through the use of 70-mΩ MOSFETs, an optimized gate drive scheme and low-power operating modes. TPA3220 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.
