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TPA0253 Datasheet(PDF) 1 Page - Texas Instruments

Part # TPA0253
Description  1-W MONO AUDIO POWER AMPLIFIER WITH HEADPHONE DRIVE
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPA0253 Datasheet(HTML) 1 Page - Texas Instruments

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TPA0253
1-W MONO AUDIO POWER AMPLIFIER
WITH HEADPHONE DRIVE
SLOS280D – JANUARY 2000 – REVISED NOVEMBER 2002
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
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
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-
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 headphones. This makes the device
ideal for use in small notebook computers, PDAs, digital personal audio players, anyplace a mono speaker and
stereo headphones are required. From a 5-V supply, the TPA0253 can deliver 1-W of power into an 8-
Ω speaker.
The gain of the input stage is set by the user-selected input resistor and a 50-k
Ω 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 k
Ω/RI in SE mode and 125 kΩ/RI in BTL mode. The
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.
AVAILABLE OPTIONS
PACKAGED DEVICES
MSOP
TA
MSOP†
(DGQ)
MSOP
SYMBOLIZATION
–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).
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.
Copyright
 2002, 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.
1
2
3
4
5
10
9
8
7
6
FILT_CAP
SHUTDOWN
VDD
BYPASS
RIN
LO/MO–
LIN
GND
ST/MN
RO/MO+
DGQ PACKAGE
(TOP VIEW)


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