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TPA0243DGQ Datasheet

  • TPA0243DGQ

  • 2-W MONO AUDIO POWER AMPLIFIER WITH HEADPHONE DRIVE

  • 6頁

  • TI

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TPA0243
2-W MONO AUDIO POWER AMPLIFIER
WITH HEADPHONE DRIVE
SLOS279A 鈥?JANUARY 2000 鈥?REVISED MARCH 2000
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Ideal for Notebook Computers, PDAs, and
Other Small Portable Audio Devices
2 W Into 4-鈩?From 5-V Supply
0.6 W Into 4-鈩?From 3-V Supply
Stereo Head Phone Drive
Mono (BTL) Signal Created by Summing
Left and Right Signals
Wide Power Supply Compatibility
3 V to 5 V
Meets PC99 Desktop Specs (target)
Low Supply Current
鈥?10 mA Typical at 5 V
鈥?9 mA Typical at 3 V
Shutdown Control . . . 1
碌A(chǔ)
Typical
Shutdown Pin is TTL Compatible
鈥?0擄C to 85擄C Operating Temperature
Range
Space-Saving, Thermally-Enhanced MSOP
Packaging
DGQ PACKAGE
(TOP VIEW)
FILT_CAP
SHUTDOWN
V
DD
BYPASS
RIN
1
2
3
4
5
10
9
8
7
6
LO/MO
LIN
GND
SR/MN
RO/MO
description
The TPA0243 is a 2-W mono bridge-tied-load (BTL) amplifier designed to drive speakers with as low as 4-鈩?/div>
impedance. The mono signal is created by summing left and right inputs. 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 TPA0243 can delivery 2-W of power into a 4-鈩?speaker.
The gain of the input stage is set by the user-selected input resistor and a 50-k鈩?internal feedback resistor
(A
V
= 鈥?R
F
/ R
I
). The power stage is internally configured with a gain of 鈥?.25 V/V in SE mode, and 鈥?.5 V/V in
BTL mode. Thus, the overall gain of the amplifier is 62.5 k鈩? R
I
in SE mode and 125 k鈩? R
I
in BTL mode. The
input terminals are high-impedance CMOS inputs, and can be used as summing nodes.
The TPA0243 is available in the 10-pin thermally-enhanced MSOP package (DGQ) and operates over an
ambient temperature range of 鈥?0擄C to 85擄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
漏
2000, Texas Instruments Incorporated
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
1

TPA0243DGQ 產(chǎn)品屬性

  • 80

  • 集成電路 (IC)

  • 線性 - 音頻放大器

  • -

  • AB 類

  • 1-通道（單聲道），帶立體聲耳機(jī)

  • 2W x 1 @ 4 歐姆; 95mW x 2 @ 32 歐姆

  • 2.5 V ~ 5.5 V

  • 消除爆音；關(guān)閉

  • 表面貼裝

  • 10-MSOP-PowerPad

  • 10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤

  • 管件

  • 296-13567-ND - EVAL MOD AUDIO PWR FOR TPA0252296-10815-ND - EVAL MOD AUDIO PWR AMP TPA0243

  • 296-34550-5TPA0243DGQ-ND

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