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TPA2000D1-Q1_15

更新时间： 2024-11-26 01:18:07
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德州仪器 - TI 放大器LTE功率放大器
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22页 797K
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2-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER

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TPA2000D1-Q1  
www.ti.com ........................................................................................................................................ SGLS137E–SEPTEMBER 2002–REVISED OCTOBER 2008  
2-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER  
1
FEATURES  
2
•
Qualified for Automotive Applications  
•
•
•
•
2 W Into a 4-Ω Speaker (THD+N<1%)  
<0.2% THD+N at 1.5 W, 1 kHz, Into a 4-Ω Load  
Integrated Depop Circuitry  
•
ESD Protection Exceeds 2000 V Per  
MIL-STD-883, Method 3015; Exceeds 200 V  
Using Machine Model (C = 200 pF, R = 0)  
Short-Circuit Protection (Short to PVDD  
,
•
•
Modulation Scheme Optimized to Operate  
Without a Filter  
Ground, and Load)  
PW PACKAGE  
(TOP VIEW)  
Extremely Efficient Third-Generation 5-V  
Class-D Technology:  
–
–
–
–
Low Supply Current (No Filter) . . . 4 mA  
Low Supply Current (Filter) . . . 7.5 mA  
Low Shutdown Current . . . 0.05 µA  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
INP  
INN  
SHUTDOWN  
GAIN0  
BYPASS  
AGND  
COSC  
ROSC  
VDD  
PVDD  
OUTN  
PGND  
Low-Noise Floor . . . 40 µVRMS  
(No-Weighting Filter)  
GAIN1  
PVDD  
OUTP  
PGND  
–
–
–
Maximum Efficiency Into 8 Ω, 75 – 85%  
Four Internal Gain Settings . . . 6 – 23.5 dB  
PSSR . . . –77 dB  
•
4 mm × 4 mm MicroStar™ Junior BGA and  
TSSOP Package Options  
DESCRIPTION/ORDERING INFORMATION  
The TPA2000D1 is a 2-W mono bridge-tied-load (BTL) class-D amplifier designed to drive a speaker with at least  
4-Ω impedance. The amplifier uses Texas Instruments third-generation modulation technique, which results in  
improved efficiency and SNR. It also allows the device to be connected directly to the speaker without the use of  
the LC output filter commonly associated with class-D amplifiers (this results in EMI which must be shielded at  
the system level). These features make the device ideal for use in devices where high efficiency is needed to  
extend battery run time.  
The gain of the amplifier is controlled by two input terminals, GAIN1 and GAIN0. This allows the amplifier to be  
configured for a gain of 6, 12, 18, and 23.5 dB. The differential input terminals are high-impedance CMOS inputs  
and can be used as summing nodes.  
The class-D BTL amplifier includes depop circuitry to reduce the amount of turnon pop at power up and when  
cycling SHUTDOWN.  
The TPA2000D1 is available in the 16-pin TSSOP and MicroStar™ Junior BGA packages and drive 2 W of  
continuous output power into a 4-Ω load. The TPA2000D1T operates over an ambient temperature range of  
–40°C to 105°C.  
ORDERING INFORMATION(1)  
TA  
PACKAGE(2)  
ORDERABLE PART NUMBER  
TOP-SIDE MARKING  
20001T  
–40°C to 105°C  
TSSOP – PW  
Tape and reel  
TPA2000D1TPWRQ1  
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI  
web site at www.ti.com.  
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.  
1
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.  
2
MicroStar is a trademark of Texas Instruments.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2002–2008, Texas Instruments Incorporated  
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