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參數(shù)資料
| 型號： | TPA2005D1DRBRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1.45 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| 封裝： | 3 X 3 MM, GREEN, PLASTIC, SON-8 |
| 文件頁數(shù)： | 8/28頁 |
| 文件大?。?/td> | 993K |
| 代理商： | TPA2005D1DRBRQ1 |
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0 V
–5 V
+5 V
Current
OUT+
Differential Voltage
Across Load
OUT–
0 V
–5 V
+5 V
Current
OUT+
OUT–
Differential
Voltage
Across
Load
0 V
–5 V
+5 V
Current
OUT+
OUT–
Differential
Voltage
Across
Load
Output = 0 V
Output > 0 V
SLOS474C – AUGUST 2005 – REVISED MARCH 2010
www.ti.com
Figure 33. Traditional Class-D Modulation Scheme Output Voltage and Current Waveforms Into an
Inductive Load With No Input
TPA2005D1 Modulation Scheme
The TPA2005D1 uses a modulation scheme that still has each output switching from 0 to the supply voltage.
However, OUT+ and OUT– are now in phase with each other, with no input. The duty cycle of OUT+ is greater
than 50% and OUT– is less than 50% for positive voltages. The duty cycle of OUT+ is less than 50% and OUT–
is greater than 50% for negative voltages. The voltage across the load remains at 0 V throughout most of the
switching period, greatly reducing the switching current, which reduces any I2R losses in the load.
Figure 34. The TPA2005D1 Output Voltage and Current Waveforms Into an Inductive Load
16
Copyright 2005–2010, Texas Instruments Incorporated
Product Folder Link(s): TPA2005D1-Q1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPA2005D1GQYRQ1 | 1.45 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA |
| TPA2005D1ZQYRQ1 | 1.45 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA |
| TPA2005D1GQYR | 1.45 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA15 |
| TPA2005D1DRBR | 1.45 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| TPA2005D1ZQYRG1 | 1.45 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA15 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPA2005D1EVM | 功能描述:音頻 IC 開發(fā)工具 TPA2005D1 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 |
| TPA2005D1GQYR | 功能描述:音頻放大器 Mono Fully Diff 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 |
| TPA2005D1-Q1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.4-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER |
| TPA2005D1TDGNRQ1 | 功能描述:音頻放大器 1.4W Mono Fil-Free Class-D Aud Pwr Amp 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 |
| TPA2005D1ZQYR | 功能描述:音頻放大器 Mono Fully Diff 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 |
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