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TPA2001D2

更新时间： 2024-09-20 22:42:03
品牌 Logo 应用领域
德州仪器 - TI 放大器功率放大器LTE
页数 文件大小 规格书
13页 181K
描述
1-W FILTERLESS STEREO CLASS-D AUDIO POWER AMPLIFIER

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TPA2001D2 数据手册

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TPA2001D2  
1-W FILTERLESS STEREO CLASS-D AUDIO POWER AMPLIFIER  
SLOS292A – MARCH 2000 – REVISED APRIL 2000  
PWP PACKAGE  
(TOP VIEW)  
D
Modulation Scheme Optimized to Operate  
Without a Filter  
D
1 W Into 8-Ω Speakers (THD+N< 0.4%)  
1
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
PGND  
LOUTN  
GAIN0  
PGND  
LOUTP  
BYPASS  
2
D
< 0.08% THD+N at 0.5 W, 1 kHz, Into 8-Ω  
Load  
3
4
PV  
PV  
rd  
DD  
DD  
D
Extremely Efficient 3 Generation 5-V  
5
LINN  
AGND  
COSC  
RINN  
LINP  
Class-D Technology:  
6
V
DD  
– Low Supply Current (No Filter) . . . 8 mA  
– Low Supply Current (Filter) . . . 15 mA  
– Low Shutdown Current . . . 1 µA  
7
ROSC  
RINP  
PV  
DD  
GAIN1  
ROUTP  
PGND  
8
9
PV  
DD  
– Low Noise Floor . . . 56 µV  
RMS  
10  
11  
12  
SHUTDOWN  
ROUTN  
– Maximum Efficiency Into 8 Ω, 75 – 85%  
– 4 Internal Gain Settings . . . 8 – 23.5 dB  
– PSRR . . . –77 dB  
PGND  
D
D
Integrated Depop Circuitry  
Short-Circuit Protection (Short to Battery,  
Ground, and Load)  
D
–40°C to 85°C Operating Temperature  
Range  
description  
The TPA2001D2 is the third generation 5-V class-D amplifier from Texas Instruments. Improvements to  
previous generation devices include: lower supply current, lower noise floor, better efficiency, four different gain  
settings, smallerpackaging, andfewerexternalcomponents. Themostsignificantadvancementwiththisdevice  
is its modulation scheme that allows the amplifier to operate without the output filter. Eliminating the output filter  
saves the user approximately 30% in system cost and 75% in PCB area.  
The TPA2001D2 is a monolithic class-D power IC stereo audio amplifier, using the high switching speed of  
power MOSFET transistors. These transistors reproduce the analog signal through high-frequency switching  
of the output stage. The TPA2001D2 is configured as a bridge-tied load (BTL) amplifier capable of delivering  
greater than 1 W of continuous average power into an 8-Ω load at less than 0.6% THD+N from a 5-V power  
supply in the high fidelity range (20 Hz to 20 kHz). With 1 W being delivered to an 8-Ω load at 1 kHz, the typical  
THD+N is less than 0.08%.  
A BTL configuration eliminates the need for external coupling capacitors on the output. Low supply current of  
8 mA makes the device ideal for battery-powered applications. Protection circuitry increases device reliability:  
thermal, over-current, and under-voltage shutdown.  
Efficient class-D modulation enables the TPA2001D2 to operate at full power into 8-Ω loads at an ambient  
temperature of 85°C.  
AVAILABLE OPTIONS  
PACKAGED DEVICE  
T
A
TSSOP (PWP)  
–40°C to 85°C  
TPA2001D2PWP  
NOTE: The PWP package is available taped and reeled. To  
order a taped and reeled part, add the suffix R to the  
part number (e.g., TPA2001D2PWPR).  
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.  
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  
1234567...13

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