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TPA3004D2PHP Fiches technique(PDF) 5 Page - Texas Instruments

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No de pièce TPA3004D2PHP
Description  12-W STEREO CLASS-D AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL
Download  43 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPA3004D2PHP Fiches technique(HTML) 5 Page - Texas Instruments

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TPA3004D2
SLOS407D − FEBRUARY 2003 − REVISED AUGUST 2004
www.ti.com
5
Terminal Functions (Continued)
TERMINAL
I/O
DESCRIPTION
NO.
NAME
I/O
DESCRIPTION
VAROUTR
32
O
Variable output for right channel audio. Line level output for driving external HP amplifier.
VCLAMPL
25
Internally generated voltage supply for left channel bootstrap capacitors.
VCLAMPR
36
Internally generated voltage supply for right channel bootstrap capacitors.
VOLUME
11
I
DC voltage that sets the gain of the Class-D and VAROUT outputs.
VREF
8
I
Analog reference for gain control section.
V2P5
4
O
2.5-V Reference for analog cells, as well as reference for unused audio input when using single-ended inputs.
Thermal
Pad
Connect to AGND and PGND—should be center point for both grounds.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range unless otherwise noted(1)
UNIT
Supply voltage range: AVCC, PVCC
−0.3 V to 20 V
Load impedance, RL
≥ 3.6 Ω
MODE, VREF, VARDIFF, VARMAX, VOLUME, FADE
0 V to 5.5 V
Input voltage range, VI
SD
−0.3 V to VCC + 0.3 V
Input voltage range, VI
RINN, RINP, LINN, LINP
−0.3 V to 7 V
Supply current
AVDD
120 mA
Supply current
AVDDREF
10 mA
Output current
VAROUTL, VAROUTR
20 mA
Continuous total power dissipation
See Dissipation Rating Table
Operating free-air temperature range, TA
−40
°C to 85°C
Operating junction temperature range, TJ(2)
−40
°C to 150°C
Storage temperature range, Tstg
−65
°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
260
°C
(1) 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.
(2) 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 temperature that could permanently
damage the device. See TI Technical Brief SLMA002 for more information about utilizing the PowerPAD thermally enhanced package.
PACKAGE DISSIPATION RATINGS
PACKAGE
TA ≤ 25°C
DERATING FACTOR
TA = 70°C
TA = 85°C
PHP
4.3 W
34.7 mW/
°C(1)
2.7 W
2.2 W
(1) The PowerPAD must be soldered to a thermal land on the printed circuit board. Please refer to the PowerPAD
Thermally Enhanced Package application note (SLMA002


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