TPA3221EVM: 208W x1 @ 2Ω, 112W x2 @ 3Ω, 12 ~ 30V in

Summary

The TPA3221EVM HD-Audio evaluation module demonstrates the TPA3221 integrated circuit from Texas Instruments. TPA3221 is an ultra-low idle-loss Class-D amp which keeps your system cooler and your battery playing longer while supporting 100kHz high resolution audio and features single-rail power supply support, gain settings, mute, and integrated protection. The device features advanced integrated feedback design which allows very low distortion across the audio band and enables a high audio quality.

The device is operated in either HEAD-mode (High-Efficiency-AD) or AD-mode Pulse Width Modulation (PWM) and can drive up to 2 x 100 W into 4-? load or 2 x 130 W into 3-? load. The TPA3221EVM features adjustable gain settings from 18-34dB and allows for flexible input signals with a 1-2 VRMS single-ended / differential analog input interface. This EVM supports 2 x BTL (stereo) output channels or 1 x PBTL (mono) output channel configurations. TPA3221EVM is a complete reference design for TPA3221, ready for evaluation and excellent listening.

Features

Integrated protection system (short circuit, clip and thermal)
Device integrated support for Single-Ended (SE) and Differential analog input signals
BTL and PBTL output configurations supported
Double-sided, plated-through, 2oz. Cu 2-layer PCB layout
Convenient XLR input connections for differential input

Specifications

Manufacturer	Texas Instruments
Category	Audio Amplifiers
Eval Board Part Number	296-TPA3221EVM-ND
Eval Board Supplier	Texas Instruments
Eval Board	Normally In Stock
Amplifier Type	Class D
Number of Outputs	Stereo (or Mono Bridged)
Output Power (RMS) @ Load	105 W x 2 @ 4 Ω 208 W @ 2 Ω
Voltage In	12 ~ 30 V
THD+N (1kHz) @ Conditions	< 1% @ 100 W (3 Ω, 5V) < 1% @ 170 W (2 Ω, 5V, Mono) < 1% @ 88 W (4 Ω, 5V) < 10% @ 105 W (4 Ω, 5V) < 10% @ 112 W (3 Ω, 5V) < 10% @ 208 W (2 Ω, 5V, Mono)
Features	Current Limit (Adj. or Fixed) Differential Inputs LDO Regulator(s), On-Chip Mute Over Voltage Protection Short Circuit Protection Thermal Protection Under Voltage Protection, Brown-Out
Efficiency @ Conditions	>80%, 30V in, 8 Ω @ 4 ~ 100 W >80%, 12V in, 8 Ω @ 10 ~ 25 W >75%, 12V in, 3 Ω @ 1 ~ 50 W >70%, 30V in, 3 Ω @ 10 ~ 200 W
Standby Current [Typical]	150 µA
Quiescent Current [Typical]	25 mA
Component Count + Extras	133 + 87
Application / Target Market	Audio: Hi Fi Audio: Home Theater Systems Audio: Powered Speakers White Goods
Design Author	Texas Instruments
Main I.C. Base Part	TPA3221
Quiescent Current [Maximum]	- Not Given
Standby Current [Maximum]	- Not Given
Date Created By Author	2017-07
Date Added To Library	2018-12