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參數(shù)資料
| 型號： | TPA3001D1PWPG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 20 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO24 |
| 封裝： | GREEN, PLASTIC, HTSSOP-24 |
| 文件頁數(shù)： | 6/28頁 |
| 文件大小： | 504K |
| 代理商： | TPA3001D1PWPG4 |
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INN
INP
GAIN0
SHUTDOWN
PGND
VCLAMP
BSN
PVCC
OUTN
PGND
VCC
VREF
BYPASS
COSC
ROSC
AGND
BSP
PVCC
OUTP
GAIN1
OUTP
PGND
PowerPAD
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
R3
51
C9
0.22
F
C6
1
F
D1
VCC
C12
220 pF
C11
1
F
C3
1
F
C4
1
F
VCC
L2
(Ferrite
Bead)
L1
(Ferrite
Bead)
C15
1 nF
C14
1 nF
D2
R2
51
C8
0.22
F
C5
1
F
C7
10
F
C10
1
F
C1
0.47
F
C2
0.47
F
IN–
IN+
GAIN SELECT
SHUTDOWN
CONTROL
U1
TPA3001D1
L1, L2: Fair-Rite, Part Number 2512067007Y3
D1, D2: Diodes, Inc., Part Number B130
VCC
R1
120 k
SLOS398E – DECEMBER 2002 – REVISED AUGUST 2010
www.ti.com
APPLICATION INFORMATION
APPLICATION CIRCUIT
Figure 30. Typical Application Circuit
CLASS-D OPERATION
This section focuses on the class-D operation of the TPA3001D1.
TRADITIONAL CLASS-D MODULATION SCHEME
The traditional class-D modulation scheme, which is used in the TPA032D0x family, has a differential output
where each output is 180 degrees out of phase and changes from ground to the supply voltage, VCC. Therefore,
the differential prefiltered output varies between positive and negative VCC, where filtered 50% duty cycle yields 0
V across the load. The traditional class-D modulation scheme with voltage and current waveforms is shown in
Figure 31. Note that even at an average of 0 V across the load (50% duty cycle), the current to the load is high,
causing high loss, thus causing a high supply current.
14
Copyright 2002–2010, Texas Instruments Incorporated
Product Folder Link(s): TPA3001D1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPA3001D1PWPR | 功能描述:音頻放大器 Mono High Power Filter-Free Class-D RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA3001D1PWPRG4 | 功能描述:音頻放大器 Mono High Power Filter-Free Class-D RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA3002D2 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:9-W STEREO CLASS-D AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL |
| TPA3002D2_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:9-W STEREO CLASS-D AUDIO POWER AMPLFIER WITH DC VOLUME CONTROL |
| TPA3002D2EVM | 功能描述:音頻 IC 開發(fā)工具 TPA3002D2 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
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