- 您現在的位置：買賣IC網 > PDF目錄98267 > TPA005D02DCA (TEXAS INSTRUMENTS INC) 2 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO48 PDF資料下載
參數資料
| 型號： | TPA005D02DCA |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 2 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO48 |
| 封裝： | PLASTIC, HTSSOP-48 |
| 文件頁數： | 13/25頁 |
| 文件大小： | 373K |
| 代理商： | TPA005D02DCA |
TPA005D02
2-W STEREO CLASS-D AUDIO POWER AMPLIFIER
SLOS227C – AUGUST 1998 – REVISED MARCH 2000
20
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
class D effect on battery life
Battery operations for class D amplifiers versus linear amplifiers have similar power supply savings results. The
essential contributing factor to longer battery life is lower RMS supply current. Figure 21 compares the
TPA005D02 supply current to the supply current of the TPA0202, a 2-W linear device, while playing music at
different peak voltage levels.
400
350
250
200
150
0
300
1
1.5
2
2.5
Supply
Current
(mA
rms)
SUPPLY CURRENTS
vs
PEAK OUTPUT VOLTAGE AND PEAK OUTPUT POWER
4
3
3.5
100
50
0.25
0.56
1
1.56
4
2.25
3.06
Peak Output Voltage (V)
Peak Output Power (W)
TPA0202
TPA005D02
Figure 21. Supply Current vs Peak Output Voltage of TPA005D02 vs TPA0202 With Music Input
This plot shows that a linear amplifier has approximately three times more current draw at normal listening levels
than a class D amplifier. Thus, a class D amplifier has approximately three times longer battery life at normal
listening levels. If there is other circuitry in the system drawing supply current, that must also be taken into
account when estimating battery life savings.
相關PDF資料 |
PDF描述 |
|---|---|
| TPA005D02DCAR | 2 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO48 |
| TPA005D14DCAR | 2 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO48 |
| TPA005D14DCA | 2 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO48 |
| TPA0102PWP | 1.5 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO24 |
| TPA0102PWPLE | 1.5 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO24 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TPA005D02DCAR | 制造商:TI 制造商全稱:Texas Instruments 功能描述:AUDIO AMPLIFIER|DUAL|TSSOP|48PIN|PLASTIC |
| TPA005D12 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2-W STEREO CLASS-D AUDIO POWER AMPLIFIER |
| TPA005D12DCA | 功能描述:音頻放大器 2W Stereo P RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA005D12DCAR | 制造商:Rochester Electronics LLC 功能描述:CLASS-D STEREO AUDIO POWER AMPLIFIER - Bulk |
| TPA005D14 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2-W STEREO CLASS-D AUDIO POWER AMPLIFIER |
發布緊急采購，3分鐘左右您將得到回復。