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參數資料
| 型號： | TPA2014D1RGPT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1.5 W, 1 CHANNEL, AUDIO AMPLIFIER, PQCC20 |
| 封裝： | 4 X 4 MM, GREEN, PLASTIC, QFN-20 |
| 文件頁數： | 10/27頁 |
| 文件大小： | 945K |
| 代理商： | TPA2014D1RGPT |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁當前第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁
Toko
1098AS-4R7M
ToshibaCRS06
SchottkyDiode
V
DD
SW
IN–
IN+
AGND
PGND
VOUT+
VOUT–
V
OUT
CC
V
IN
CC
22 F
m
22 F
m
1 F
m
ToBattery
Left
Channel
Input
C
IN
C
IN
V
FB
CC
SDb
SDd
GAIN
4.7 H
m
GND=Bypass
V
=BoostMode
DD
1 F
m
R1
50k
R2
453k
TPA2014D1
GPIO
EFFICIENCY AND THERMAL INFORMATION
JA
1
=
= 80.64 C/W
Derating Factor
0.0124
q
°
(8)
A
J
JA Dmax
T Max = T Max
P
= 150
80.64 (0.193) = 134 C
- q
-
°
(9)
BOARD LAYOUT
SLAS559A – MAY 2008 – REVISED JUNE 2008 ............................................................................................................................................................... www.ti.com
Figure 17. Bypass Circuit
The maximum ambient temperature depends on the heat-sinking ability of the PCB system. The derating factors
for the YZH and RGP packages are shown in the dissipation rating table. Apply the same principles to both
packages. Using the YZH package, and converting this to
θ
JA:
Given
θ
JA of 80.64°C/W, the maximum allowable junction temperature of 150°C, and the maximum internal
dissipation of 0.193 W (VDD = 3.6 V, PO = 1.2 W), the maximum ambient temperature is calculated with the
following equation:
Equation 9 shows that the calculated maximum ambient temperature is 134°C at maximum power dissipation
under the above conditions. The TPA2014D1 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
8-
dramatically increases the thermal performance by reducing the output current and increasing the efficiency
of the amplifier.
In making the pad size for the WCSP balls, use nonsolder mask defined (NSMD) land. With this method, the
solder mask opening is made larger than the desired land area, and the opening size is defined by the copper
18
Copyright 2008, Texas Instruments Incorporated
Product Folder Link(s): TPA2014D1
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相關代理商/技術參數 |
參數描述 |
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| TPA2014D1RGPTG4 | 功能描述:音頻放大器 1.5W Constant Output Pwr Class-D Aud Amp 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 |
| TPA2014D1YZHR | 功能描述:音頻放大器 1.5W Constant Output Pwr Class-D Aud Amp 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 |
| TPA2014D1YZHT | 功能描述:音頻放大器 1.5W Constant Output Pwr Class-D Aud Amp 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 |
| TPA2015D1 | 制造商:TI 功能描述:2 W Constant Output Power Class-D Audio Amplifier With Adaptive Boost Converter and Battery Tracking SpeakerGuard? AGC |
| TPA2015D1_10 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2 W Constant Output Power Class-D Audio Amplifier With Adaptive Boost Converter and Battery Tracking SpeakerGuard? AGC |
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