Texas Instruments TPA0253DGQR, TPA0253DGQ Datasheet
TPA0253
1-W MONO AUDIO POWER AMPLIFIER
WITH HEADPHONE DRIVE
SLOS280B – JANUARY 2000 – REVISED MARCH 2000
DD
DGQ PACKAGE
(TOP VIEW)
1
2
3
4
5
10
9
8
7
6
LO/MO–
LIN
GND
ST/MN
RO/MO+
D
Ideal for Notebook Computers, PDAs, and
Other Small Portable Audio Devices
D
1 W Into 8-Ω From 5-V Supply
D
0.3 W Into 8-Ω From 3-V Supply
D
Stereo Head Phone Drive
D
Mono (BTL) Signal Created by Summing
Left and Right Signals Internally
D
Wide Power Supply Compatibility
FILT–CAP
SHUTDOWN
V
BYPASS
RIN
2.5 V to 5.5 V
D
Low Supply Current
– 3.2 mA Typical at 5 V
– 2.7 mA Typical at 3 V
D
Shutdown Control ...1 µA Typical
D
Shutdown Pin is TTL Compatible
D
–40°C to 85°C Operating Temperature
Range
D
Space-Saving, Thermally-Enhanced MSOP
Packaging
description
The TPA0253 is a 1-W mono bridge-tied-load (BTL) amplifier designed to drive speakers with as low as 8-Ω
impedance. The mono signal is created by summing left and right inputs internally. The amplifier can be
reconfigured on-the-fly to drive two stereo single-ended (SE) signals into head phones. This makes the device
ideal for use in small notebook computers, PDAs, digital personal audio players, anyplace a mono speaker and
stereo head phones are required. From a 5-V supply , the TPA0253 can delivery 1-W of power into a 8-Ω speaker .
The gain of the input stage is set by the user-selected input resistor and a 50-kΩ internal feedback resistor
(AV = – RF/ RI). The power stage is internally configured with a gain of –1.25 V/V in SE mode, and –2.5 V/V in
BTL mode. Thus, the overall gain of the amplifier is 62.5 kΩ/ R
in SE mode and 125 kΩ/ RI in BTL mode. The
I
input terminals are high-impedance CMOS inputs, and can be used as summing nodes.
The TPA0253 is available in the 10-pin thermally-enhanced MSOP package (DGQ) and operates over an
ambient temperature range of –40°C to 85°C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments Incorporated.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright 2000, Texas Instruments Incorporated
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
1
TPA0253
1-W MONO AUDIO POWER AMPLIFIER
WITH HEADPHONE DRIVE
SLOS280B – JANUARY 2000 – REVISED MARCH 2000
V
DD
V
DD
3
4
BYPASS
C
B
8
GND
Right
Audio
Input
Left
Audio
Input
From
System Control
C
I
C
I
1
FILT–CAP
5
RIN
R
I
R
I
9
LIN
2
SHUTDOWN
50 kΩ
M
U
X
BYPASS
50 kΩ
M
U
X
BYPASS
Shutdown
and Depop
Circuitry
50 kΩ
–
+
50 kΩ
50 kΩ
–
+
BYPASS
R
BYPASS
R
BYPASS
1.25*R
–
+
Stereo/Mono
Control
1.25*R
–
+
RO/MO+
ST/MN
LO/MO–
100 kΩ
C
6
7
10
V
DD
C
100 kΩ
C
C
1 kΩ
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MSOP
I/O
DESCRIPTION
1-W MONO AUDIO POWER AMPLIFIER
WITH HEADPHONE DRIVE
SLOS280B – JANUARY 2000 – REVISED MARCH 2000
AVAILABLE OPTIONS
PACKAGED DEVICES
T
A
–40°C to 85°C TPA0253DGQ AEL
†
The DGQ package are available taped and reeled. To order a taped and reeled part, add the
suffix R to the part number (e.g., TPA0253DGQR).
Terminal Functions
TERMINAL
NAME NO.
FILT–CAP 1 Terminal used to filter power supply
SHUTDOWN 2 I TTL–compatible shutdown terminal
VDD 3 I Positive power supply
BYPASS 4 I Mid–rail bias voltage
RIN 5 I Right–channel input terminal
RO/MO+ 6 O Right–output in SE mode and mono positive output in BTL mode
ST/MN 7 I Selects between Stereo and Mono mode. When held high, the amplifier is in SE stereo mode, while held
GND 8 Ground terminal
LIN 9 I Left–channel input terminal
LO/MO– 10 O Left–output in SE mode and mono negative output in BTL mode.
low, the amplifier is in BTL mono mode.
MSOP
(DGQ)
†
SYMBOLIZATION
TPA0253
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VDD 6 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, VI –0.3 V to VDD +0.3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total power dissipation internally limited (see Dissipation Rating Table). . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA (see Table 3) –40°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating junction temperature range, TJ –40°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
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.
PACKAGE
DGQ 2.14 W
¶
Please see the Texas Instruments document,
(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
Board for PowerPAD
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
stg
DISSIPATION RATING TABLE
TA ≤ 25°C DERATING FACTOR TA = 70°C TA = 85°C
¶
on page 33 of the before mentioned document.
17.1 mW/°C 1.37 W 1.11 W
PowerPAD Thermally Enhanced Package Application Report
T exas Instruments Recommended
§
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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