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TPA4861D Datasheet

  • TPA4861D

  • 1-W AUDIO POWER AMPLIFIER

  • 24頁

  • TI

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TPA4861
1-W AUDIO POWER AMPLIFIER
SLOS163B 鈥?SEPTEMBER 1996 鈥?REVISED MARCH 2000
D
D
D
D
D
D
D
D
D
1-W BTL Output (5 V, 0.11 % THD+N)
3.3-V and 5-V Operation
No Output Coupling Capacitors Required
Shutdown Control (I
DD
= 0.6
碌A(chǔ))
Uncompensated Gains of 2 to 20 (BTL
Mode)
Surface-Mount Packaging
Thermal and Short-Circuit Protection
High Supply Ripple Rejection Ratio
(56 dB at 1 kHz)
LM4861 Drop-In Compatible
D PACKAGE
(TOP VIEW)
SHUTDOWN
BYPASS
IN+
IN鈥?/div>
1
2
3
4
8
7
6
5
V
O
2
GND
V
DD
V
O
1
description
The TPA4861 is a bridge-tied load (BTL) audio power amplifier capable of delivering 1 W of continuous average
power into an 8-鈩?load at 0.2% THD+N from a 5-V power supply in voiceband frequencies (f < 5 kHz). A BTL
configuration eliminates the need for external coupling capacitors on the output in most applications. Gain is
externally configured by means of two resistors and does not require compensation for settings of 2 to 20.
Features of the amplifier are a shutdown function for power-sensitive applications as well as internal thermal
and short-circuit protection. The TPA4861 works seamlessly with TI鈥檚 TPA4860 in stereo applications. The
amplifier is available in an 8-pin SOIC surface-mount package that reduces board space and facilitates
automated assembly.
VDD 6
RF
Audio
Input
RI
CI
3
CB
IN +
4
IN 鈥?/div>
鈥?/div>
+
VO1 5
VDD/2
VDD
CS
1W
2
BYPASS
鈥?/div>
+
VO2 8
1
SHUTDOWN
Bias
Control
7
GND
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
漏
2000, 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.
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
1

TPA4861D 產(chǎn)品屬性

  • 75

  • 集成電路 (IC)

  • 線性 - 音頻放大器

  • -

  • AB 類

  • 1-通道（單聲道）

  • 1.1W x 1 @ 8 歐姆

  • 2.7 V ~ 5.5 V

  • 短路和熱保護(hù)，關(guān)閉

  • 表面貼裝

  • 8-SOIC

  • 8-SOIC（0.154"，3.90mm 寬）

  • 管件

  • 296-7014-5

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