1 Features
• Wide 10-V to 42-V Supply Voltage Range
• Stereo (2 x BTL) and mono (1 x PBTL)
configurations
• Output Power at 10% THD+N
– 200-W Stereo into 4 Ω in BTL Configuration
– 300-W Mono into 3 Ω in PBTL Configuration
– 425W Mono into 2 Ω in PBTL Configuration
• Output Power at 1% THD+N
– 170-W Stereo into 4 Ω in BTL Configuration
– 325-W Mono into 2 Ω in PBTL Configuration
• Closed-loop feedback design
– <0.02% THD+N at 1 W into 4 Ω
– 60-dB PSRR (BTL, No input signal)
– <100-μV output noise (A-weighted)
– >110-dB SNR (A-weighted)
• Low-Power operating modes
– Standby modes: mute and shutdown
– Single-channel BTL operation
• Multiple input options to simplify pre-amp design
– Differential or single-ended analog inputs
– Selectable Gains: 20 dB, 23.5 dB, 32 dB, 36 dB
• Integrated Protection: Undervoltage, Overvoltage,
Overcurrent, Cycle-by-cycle Current Limit, Short
Circuit, Clipping Detection, Overtemperature
Warning and Shutdown, and DC Speaker
Protection
• Easily synchronize muliples devices
• 90% Efficient Class-D Operation (4 Ω)

2 Applications
• Bluetooth and Wi-Fi™ speakers
• Soundbars
• Subwoofers
• Professional and public address (PA) speakers

3 Description
TPA3223 is a high-power Class-D amplifier that
enables efficient operation at full-power, idle and
standby. The device features closed-loop feedback
which provides low distortion across the audio band
and delivers excellent sound quality. The device
operates in AD modulation and can drive up to 2 x
200 W into 4-Ω load or 1 x 400 W into 2-Ω load.
The TPA3223 features a single-ended or differential
analog-input interface that supports up to 2 VRMS with
four selectable gains: 20 dB, 23.5 dB, 32 dB and
36 dB. The TPA3223 also achieves >90% efficiency,
low idle power and ultra-low standby power (<0.1
W). This is made possible through the use of 60-
mΩ MOSFETs, an optimized gate drive scheme and
low-power operating modes. To further simplify the
design, the device integrates essential protection
features including undervoltage, overvoltage, cycleby-
cycle current limit, short circuit, clipping detection,
overtemperature warning and shutdown, and DC
speaker protection.