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參數(shù)資料
| 型號： | TPA2031D1YZFR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 2.5 W, 2 CHANNEL, AUDIO AMPLIFIER, BGA9 |
| 封裝： | 1.45 X1.45 MM, LEAD FREE, WCSP-9 |
| 文件頁數(shù)： | 9/24頁 |
| 文件大小： | 754K |
| 代理商： | TPA2031D1YZFR |
375 mm
(+0, -25 mm)
275 mm
(+0, -25 mm)
Circular Solder Mask Opening
Paste Mask (Stencil)
= Copper Pad Size
75 mm
100 mm
75 mm
EFFICIENCY AND THERMAL INFORMATION
q
JA
+
1
Derating Factor
+
1
0.0078
+ 128.2
°C W
(17)
T
A
Max + TJMax * qJAPDmax + 150 * 128.2 (0.4) + 98.72°C
(18)
ELIMINATING THE OUTPUT FILTER WITH THE TPA2031D1
www.ti.com........................................................................................................................................................................................................ SLOS546 – MAY 2008
Figure 35. Close Up of TPA2031D1 Land Pattern From TPA2031D1 EVM
The maximum ambient temperature depends on the heat-sinking ability of the PCB system. The derating factor
for the YZF package is shown in the dissipation rating table. Converting this to
θ
JA:
Given
θ
JA of 128.2°C/W, the maximum allowable junction temperature of 150°C, and the maximum internal
dissipation of 0.4 W (2.25 W, 4-
load, 5-V supply, from Figure 3), the maximum ambient temperature can be
calculated with the following equation.
Equation 18 shows that the calculated maximum ambient temperature is 98.7°C at maximum power dissipation
with a 5-V supply and 4-
a load, see Figure 3. The TPA2031D1 is designed with thermal protection that turns
the device off when the junction temperature surpasses 150°C to prevent damage to the IC. Also, using
speakers more resistive than 4-
dramatically increases the thermal performance by reducing the output current
and increasing the efficiency of the amplifier.
This section focuses on why the user can eliminate the output filter with the TPA2031D1.
Copyright 2008, Texas Instruments Incorporated
17
Product Folder Link(s): TPA2031D1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPA2031D1YZFT | 功能描述:音頻放大器 2.5W Mono 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 |
| TPA2032D1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.75-W FIXED GAIN MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER |
| TPA2032D1YZF | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.75-W FIXED GAIN MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER |
| TPA2032D1YZFR | 功能描述:音頻放大器 2.75W Mon Fully Diff Class-D Aud 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 |
| TPA2032D1YZFT | 功能描述:音頻放大器 2.75W Mon Fully Diff Class-D Aud 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 |
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