TAS2552EVM: 3.5W @ 8Ω, Mono, Class D Amp

Summary

The TAS2552 is a high efficiency Class-D audio power amplifier with advanced battery current measurement and an integrated boost converter. It drives up to 3.5 W into an 8Ω speaker. The built-in boost converter generates the Class D amplifier supply rail. This boosted supply rail provides louder audio than a stand-alone amplifier directly connected to the battery.

The AGC function automatically adjusts Class-D gain to reduce battery current at end-of-charge voltages, and prevents output clipping and distortion.

The Class-D output switching is adjustable by the I2C interface, providing a method to slow the Class-D switching edge rate to improve EMI. For more information about the TAS2552, refer to the datasheet (SLAS898).

Specifications

Manufacturer Texas Instruments
Category Audio Amplifiers
Eval Board Board not Stocked
Amplifier Type Class D
Number of Outputs Mono
Output Power (RMS) @ Load 3.5 W @ 8 Ω
Voltage In 1.5 ~ 3.3 V (digital)
1.6 ~ 2.0 V (analog)
2.7 ~ 5.5 V (boost)
THD+N (1kHz) @ Conditions < 0.1% @ 2 W (8 Ω, 3.6 VBAT)
Features Digital Gain
I²C Interface
Short Circuit Protection
Shutdown, Enable, Standby
Thermal Protection
Efficiency @ Conditions >59%, 0.048 ~ 3.5 W @ 8 Ω, 5.5 Vbat
>56%, 0.035 ~ 3.5 W @ 8 Ω, 5Vbat
>54%, 0.013 ~ 3.5 W @ 8 Ω, 4.2 Vbat
>52%, 0.01 ~ 3.5 W @ 8 Ω, 3.6 Vbat
>50%, 0.01 ~ 3.5 W @ 8 Ω, 3V
Standby Current [Typical] 100 nA
Quiescent Current [Typical] 3.7 mA
Component Count + Extras 113 + 88
Application / Target Market Cell Phones
Handheld games
Portable Devices
Tablets
Design Author Texas Instruments
Main I.C. Base Part TAS2552
Quiescent Current [Maximum] 5.9 mA
Standby Current [Maximum] - Not Given
Date Created By Author 2014-01
Date Added To Library 2014-05

Support Documents & Media

TAS2552EVM - SLAU496 - User Guide TAS2552 - Datasheet

Media

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