TPA3004D2

Features:

`12-W/Ch Into an 8- Load From 15-V Supply
`Efficient, Class-D Operation Eliminates Heatsinks and Reduces Power Supply Requirements
`32-Step DC Volume Control From 40 dB to 36 dB
`Line Outputs For External Headphone Amplifier With Volume Control
`Regulated 5-V Supply Output for Powering TPA6110A2
`Space-Saving, Thermally-Enhanced PowerPAD™ Packaging
`Thermal and Short-Circuit Protection


Application

· LCD Monitors and TVs
· Powered Speakers


Pinout




Specifications

Supply voltage range: AV_CC, PV_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . 0.3 V to 20 V
Load impedance, R_L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . .. .  . . . . . . 3.6
Input voltage range, V_I: MODE, VREF, VARDIFF, VARMAX, VOLUME, FADE . . . . . . . . . . . . . . . . . . . 0 V to 5.5 V
SD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .  0.3 V to V_CC + 0.3 V
RINN, RINP, LINN, LINP . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . .  . . . . . . . . .. .  . . . . . 0.3 V to 7 V
Supply current: AV_DD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . .  . . . 120 mA
AVDDREF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .. . . . .  .. . . . .  . . . 10 mA
Output current, VAROUTL, VAROUTR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . ...  . . . . . . . . 20 mA
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  .. See Dissipation Rating Table
Operating free-air temperature range, T_A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . 40°C to 85°C
Operating junction temperature range, T_J‡ . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . .  .. . . 40°C to 150°C
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . 65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
† Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

‡ The (TPA3004D2) incorporates an exposed PowerPAD on the underside of the chip. This acts as a heatsink and must be connected to a thermally dissipating plane for proper power dissipation. Failure to do so may result in exceeding the maximum junction  emperature that couldm permanently damage the device. See TI Technical Brief SLMA002 for more information about utilizing the PowerPAD thermally enhanced package.

Description

The TPA3004D2 is a 12-W (per channel) efficient, Class-D audio amplifier for driving bridged-tied stereo speakers. The TPA3004D2 can drive stereo speakers a s low as 4 . The high efficiency of the TPA3004D2 eliminates the need for external heatsinks when playing music.Stereo speaker volume is controlled with a dc voltage applied to the volume control terminal offering a range  of gain from 40 dB to 36 dB. Line outputs, for driving external headphone amplifier inputs, are also dc voltage controlled with a range of gain from 56 dB to 20 dB.An integrated 5-V regulated supply is provided for powering an external headphone amplifier.