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TPA0233

更新时间： 2024-09-20 22:42:03
品牌 Logo 应用领域
德州仪器 - TI 驱动器放大器功率放大器
页数 文件大小 规格书
6页 90K
描述
2-W MONO AUDIO POWER AMPLIFIER WITH HEADPHONE DRIVE

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TPA0233 数据手册

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TPA0233  
2-W MONO AUDIO POWER AMPLIFIER  
WITH HEADPHONE DRIVE  
SLOS278A – JANUARY 2000 – REVISED MARCH 2000  
DGQ PACKAGE  
(TOP VIEW)  
Ideal for Notebook Computers, PDAs, and  
Other Small Portable Audio Devices  
2 W Into 4-Ω From 5-V Supply  
0.6 W Into 4-Ω From 3-V Supply  
Stereo Head Phone Drive  
1
2
3
4
5
FILT_CAP  
SHUTDOWN  
LO/MO  
LIN  
GND  
SR/MN  
RO/MO  
10  
9
V
8
DD  
BYPASS  
7
Mono (BTL) Signal Created by Summing  
Left and Right Signals  
RIN  
6
Wide Power Supply Compatibility  
3 V to 5 V  
3 V to 5 V  
Meets PC99 Portable Specs (target)  
Low Supply Current  
– 4 mA Typical at 5 V  
– 3.3 mA Typical at 3 V  
Shutdown Control . . . 1 µA Typical  
Shutdown Pin is TTL Compatible  
–40°C to 85°C Operating Temperature  
Range  
Space-Saving, Thermally-Enhanced MSOP  
Packaging  
description  
The TPA0233 is a 2-W mono bridge-tied-load (BTL) amplifier designed to drive speakers with as low as 4-Ω  
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 TPA0233 can delivery 2-W of power into a 4-Ω speaker.  
The gain of the input stage is set by the user-selected input resistor and a 50-kΩ internal feedback resistor  
(A = – R / R ). The power stage is internally configured with a gain of –1.25 V/V in SE mode, and –2.5 V/V in  
V
F
I
BTL mode. Thus, the overall gain of the amplifier is 62.5 kΩ/ R in SE mode and 125 kΩ/ R in BTL mode. The  
I
I
input terminals are high-impedance CMOS inputs, and can be used as summing nodes.  
The TPA0233 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.  
Copyright 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.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
123456

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TPA0233 替代型号

型号 品牌 替代类型 描述 数据表
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