TPA301
350-mW MONO AUDIO POWER AMPLIFIER
SLOS208C – JANUARY1998 – REVISED MARCH 2000
AVAILABLE OPTIONS
PACKAGED DEVICES
†
MSOP
Symbolization
†
MSOP
T
A
SMALL OUTLINE
(D)
(DGN)
–40°C to 85°C
TPA301D
TPA301DGN
AAA
†
The D and DGN packages are available taped and reeled. To order a taped and reeled part, add
the suffix R to the part number (e.g., TPA301DR).
Terminal Functions
TERMINAL
NAME
I/O
DESCRIPTION
NO.
BYPASS is the tap to the voltage divider for internal mid-supply bias. This terminal should be connected
to a 0.1-µF to 1-µF capacitor when used as an audio amplifier.
BYPASS
2
I
GND
7
4
3
1
6
5
8
GND is the ground connection.
IN–
I
I
I
IN– is the inverting input. IN– is typically used as the audio input terminal.
IN+ is the noninverting input. IN+ is typically tied to the BYPASS terminal.
IN+
SHUTDOWN
SHUTDOWN places the entire device in shutdown mode when held high (I
< 1 µA).
DD
V
V
V
V
V
V
is the supply voltage terminal.
DD
DD
+
–
O
O
+ is the positive BTL output.
– is the negative BTL output.
O
O
O
O
‡
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V
DD
Input voltage, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to V +0.3 V
I
DD
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . internally limited (see Dissipation Rating Table)
Operating free-air temperature range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 85°C
Operating junction temperature range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 150°C
A
J
Storage temperature range, T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
stg
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.
DISSIPATION RATING TABLE
PACKAGE
T
A
≤ 25°C
DERATING FACTOR
T
A
= 70°C
T = 85°C
A
D
725 mW
5.8 mW/°C
464 mW
1.37 W
377 mW
§
DGN
2.14 W
17.1 mW/°C
1.11 W
§
Please see the Texas Instruments document, PowerPAD Thermally Enhanced Package Application Report
(literature number SLMA002), for more information on the PowerPAD package. The thermal data was
measured on a PCB layout based on the information in the section entitled Texas InstrumentsRecommended
Board for PowerPAD on page 33 of the before mentioned document.
recommended operating conditions
MIN
2.5
MAX
5.5
UNIT
V
Supply voltage, V
DD
Operating free-air temperature, T
–40
85
°C
A
2
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TI [ TEXAS INSTRUMENTS ]
