General Description

The VA2213 is a cost-effective filter-less Class D stereo audio power amplifier that operates in wide range of various power supplies. VA2213 provide volume control with four selectable gain settings (20dB, 26dB, 32dB, 36dB). VA2213 can output 15W per channel into 8Ω load with lower supply current and fewer external components for driving bridged-tied stereo speaker directly. With the function of power limit, the speakers could be operated safely and the input signal would be also normalized.

 VA2213 operates with high efficiency energy con- version up to 88% (8Ω Load) so that the external heat sink can be eliminated while playing music.

 VA2213 also integrates Anti-Pop, Output Short & Over-Heat Protection Circuitry to ensure device re- liability. This device also provides the DC detect and protection scheme to prevent the damage of speaker voice coils.

 The VA2213 is available in small TSSOP-28 green package with exposed pad.

 Features

- Operation Voltage from 8V to 26V

- Maximum 88% Efficiency with an 8Ω Speaker

- 16.5W@8Ω Load with THD+N =1% at 18V

- 12.2W@4Ω Load with THD+N =1% at 12V

- 14.9W@4Ω Load with THD+N =10% at 12V

- 9.3W@8Ω Load with THD+N =10% at 12V

- Mute Control For Less CODEC Pop-up Noise

- Four Selectable Gain Settings

- Scalable Power Limit Function

- Speaker DC Detection and Protection

- Parallel BTL Speaker Driving Connection

- Thermal Protection with Auto-Recovery

- Speaker Protection Circuitry

- Short Circuit and Thermal Protection

- RoHS 2.0 compliant TSSOP-28 Green Pack- age with Exposed Pad

 Applications

- LCD TV

- Multimedia Speakers

- Sound Bar

Typical Application