參數資料
型號: TPA741DR
廠商: TEXAS INSTRUMENTS INC
元件分類: 音頻/視頻放大
英文描述: 0.35 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
封裝: GREEN, PLASTIC, MS-012AA, SOIC-8
文件頁數: 1/27頁
文件大?。?/td> 760K
代理商: TPA741DR
www.ti.com
FEATURES
DESCRIPTION
1
2
3
4
8
7
6
5
SHUTDOWN
BYPASS
IN+
IN–
VO
GND
VDD
VO+
D OR DGN PACKAGE
(TOP VIEW)
Audio
Input
Bias
Control
VDD
700 mW
6
5
7
VO+
VDD
1
2
4
BYPASS
IN–
VDD/2
CI
RI
CS
CB
RF
SHUTDOWN
VO– 8
GND
From System Control
3
IN+
+
+
TPA741
SLOS316C – JUNE 2000 – REVISED JUNE 2004
700-mW MONO LOW-VOLTAGE AUDIO POWER
AMPLIFIER WITH DIFFERENTIAL INPUTS
Fully Specified for 3.3-V and 5-V Operation
The TPA741 is a bridge-tied load (BTL) audio power
amplifier developed especially for low-voltage appli-
Wide Power Supply Compatibility 2.5 V - 5.5 V
cations
where
internal
speakers
are
required.
Output Power for RL = 8
Operating with a 3.3-V supply, the TPA741 can
– 700 mW at VDD = 5 V
deliver 250-mW of continuous power into a BTL 8-
– 250 mW at VDD = 3.3 V
load at less than 0.6% THD+N throughout voice band
frequencies. Although this device is characterized out
Integrated Depop Circuitry
to 20 kHz, its operation is optimized for narrower
Thermal and Short-Circuit Protection
band applications such as wireless communications.
Surface-Mount Packaging
The BTL configuration eliminates the need for exter-
nal coupling capacitors on the output in most appli-
– SOIC
cations, which is particularly important for small
– PowerPAD MSOP
battery-powered equipment. This device features a
shutdown mode for power-sensitive applications with
a supply current of 7 A during shutdown. The
TPA741 is available in an 8-pin SOIC surface-mount
package and the surface-mount PowerPAD MSOP,
which reduces board space by 50% and height by
40%.
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.
PRODUCTION DATA information is current as of publication date.
Copyright 2000–2004, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
相關PDF資料
PDF描述
TPA741D 0.35 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
TPA741DG4 0.35 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
TPA741DRG4 0.35 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
TPA741DGNRG4 0.7 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
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