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參數資料
| 型號： | TPA6120A2DWP |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.08 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO20 |
| 封裝： | GREEN, PLASTIC, SOP-20 |
| 文件頁數： | 10/25頁 |
| 文件大?。?/td> | 611K |
| 代理商： | TPA6120A2DWP |
www.ti.com
V
P +
2 P
L RL
(5)
P
SUP +
V
CCVP
p
R
L
) VCC ICC(q)
(6)
P
DISS + (1 * h) PSUP
(7)
T
A Max + TJ Max * ΘJA PDiss
(8)
Power
Dissipation
W
P
D
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
0
0.5
1
1.5
2
2.5
3
3.5
VCC = +15 V, RL = 32 W
VCC = +15 V,
RL = 64 W
VCC = +12 V,
RL = 64 W
VCC = +12 V, RL = 32 W
PO Output Power W
Mono Operation
TPA6120A2
SLOS431 – MARCH 2004
APPLICATION INFORMATION (continued)
Therefore,
PL = Power delivered to load (per channel)
PSUP = Power drawn from power supply
VLRMS = RMS voltage on the load
RL = Load resistance
VP = Peak voltage on the load
ICCavg = Average current drawn from the power supply
ICC(q) = Quiescent current (per channel)
VCC = Power supply voltage (total supply voltage = 30 V if running on a ±15-V power supply
η = Efficiency of a SE amplifier
For stereo operation, the efficiency does not change because both PL and PSUP are doubled. This effects the
amount of power dissipated by the package in the form of heat.
A simple formula for calculating the power dissipated, PDISS, is shown in Equation 7:
In stereo operation, PSUP is twice the quantity that is present in mono operation.
The maximum ambient temperature, TA, depends on the heat-sinking ability of the system. θJA for a 20-pin DWP,
whose thermal pad is properly soldered down, is shown in the dissipation rating table.
Figure 35. Power Dissipation vs Output Power
18
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPA6120A2DWP | 制造商:Texas Instruments 功能描述:SEMICONDUCTOR 制造商:Texas Instruments 功能描述:IC, AUDIO POWER AMPLIFIER, 80mW, SO-20 |
| TPA6120A2DWPG4 | 功能描述:音頻放大器 High Fidelity Stereo Headphone Drv 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 |
| TPA6120A2DWPR | 功能描述:音頻放大器 High Fidelity Stereo Headphone Drv 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 |
| TPA6120A2DWPRG4 | 功能描述:音頻放大器 Hi Fidelity St Head phone Driver 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 |
| TPA6120A2EVM | 功能描述:音頻 IC 開發工具 TPA6120A2 Eval Mod RoHS:否 制造商:Texas Instruments 產品: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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