http://www.ti.com/general/docs/suppproductinfo.tsp?distId=26&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Ftpa3223″>View Datasheet

Texas Instruments TPA3223 Mono HD Analog-Input, Class-D Amplifier

Texas Instruments TPA3223 Mono HD Analog-Input, Class-D Amplifier provides an efficient operation at full power, idle, and standby. The TPA3223 has closed-loop feedback allowing low distortion across the audio band and delivering excellent sound quality. The TPA3223 operates in AD modulation and drives up to 2 x 200W into 4Ω load or 1 x 400W into 2Ω load.

The TI TPA3223 Class-D amplifier supplies a single-ended or differential analog-input interface that supports up to 2V_RMS with four selectable gains of 20dB, 23.5dB, 32dB, and 36dB. The TPA3223 achieves >90% efficiency, low idle, and ultra-low standby power (<0.1W). These features are possible using 60mΩ MOSFETs, an optimized gate drive scheme, and low-power operating modes.

The TPA3223 integrates essential protection features, including undervoltage, overvoltage, cycle-by-cycle current limit, short circuit, clipping detection, overtemperature warning and shutdown, and DC speaker protection.

Features

Wide 10V to 42V supply voltage range
Stereo (2 x BTL) and mono (1 x PBTL) configurations
Output power at 10% THD+N
- 200W Stereo into 4Ω in BTL configuration
- 300W Mono into 3Ω in PBTL configuration
- 425W Mono into 2Ω in PBTL configuration
Output power at 1% THD+N
- 170W Stereo into 4Ω in BTL configuration
- 325W Mono into 2Ω in PBTL configuration
Closed-loop feedback design
- <0.02% THD+N at 1W into 4Ω
- 60dB PSRR (BTL, No input signal)
- <100µV output noise (A-weighted)
- >110dB SNR (A-weighted)

Low-power operating modes
- Standby modes of mute and shutdown
- Single-channel BTL operation
Multiple input options to simplify pre-amp design
- Differential or single-ended analog inputs
- 20dB, 23.5dB, 32dB, and 36dB Selectable gains
Integrated protections include undervoltage, overvoltage, overcurrent, cycle-by-cycle current limit, short circuit, clipping detection, overtemperature warning and shutdown, and DC speaker protection
Easily synchronize multiple devices
90% Efficient Class-D operation (4Ω)

Applications

BLUETOOTH^® and Wi-Fi™ speakers
Soundbars

Subwoofers
Professional and public address (PA) speakers

Texas Instruments TPA3223 Mono HD Analog-Input, Class-D Amplifier

Features

Applications

Simplified Schematic

Block Diagram

System Block Diagram

husseinkey ELECTRONICS®

COMPANY