TPA3220 50W Stereo / 100W Peak HD Analog-Input Pad-Down Class-D Amplifier | TI.com

TPA3220 (ACTIVE)

50W Stereo / 100W Peak HD Analog-Input Pad-Down Class-D Amplifier

 

Description

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 VRMS with 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.

Features

  • Stereo (2 x BTL) and Mono (1 x PBTL) Operation
  • Output Power at 10% THD+N
    • 60-W Stereo Continuous into 8 Ω in BTL
    • 110-W Stereo Peak into 4 Ω in BTL
  • Output Power at 1% THD+N
    • 50-W Stereo Continuous into 8 Ω in BTL
    • 89-W Stereo Peak into 4 Ω in BTL
  • 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)
    • <72-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, Cycle-by-cycle Current Limit, Short Circuit, Clipping Detection, Overtemperature Warning and Shutdown, and DC Speaker Protection
  • 90% Efficient Class-D Operation (4 Ω)
  • Thermal Pad Located on Package Bottom
  • Pin-Compatible Family of Devices with Voltage and Power-Level Options

All trademarks are the property of their respective owners.

Parametrics

Compare all products in Speaker amps Email Download to Excel
Part number Order Audio input type Architecture Speaker channels (Max) Power stage supply (Min) (V) Power stage supply (Max) (V) Output power (W) Load (Min) (ohms) SNR (dB) THD + N @ 1 kHz (%) Iq (Typ) (mA) Control interface Closed/open loop Analog supply (Min) (V) Analog supply (Max) (V) Power to parallel bridge tied load (Max) (W) PSRR (dB) Operating temperature range (C) Rating
TPA3220 Order now Analog Input     Class-D     Stereo     7     30     100     1     108     0.02     15     Hardware     Closed     5     30     200     60     -40 to 85     Catalog    
TPA3116D2 Order now Analog Input     Class-D     Stereo     4.5     26     50     4     102     0.1     20     Hardware     Closed     4.5     26     100     70     -40 to 85     Catalog    
TPA3118D2 Order now Analog Input     Class-D     Stereo     4.5     26     50     4     102     0.1     20     Hardware     Closed     4.5     26     60     70     -40 to 85     Catalog    
TPA3126D2 Order now Analog Input     Class-D     Stereo     4.5     26     50     4     102     0.02     23     Hardware     Closed     4.5     26     100     70     -40 to 85     Catalog    
TPA3128D2 Order now Analog Input     Class-D     Stereo     4.5     26     30     2     102     0.1     17