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參數資料
| 型號： | TPA2100P1YZHR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1 CHANNEL, AUDIO AMPLIFIER, PBGA16 |
| 封裝： | 2.10 X 2.10 MM, GREEN, WCSP-16 |
| 文件頁數： | 8/23頁 |
| 文件大小： | 963K |
| 代理商： | TPA2100P1YZHR |
Component Location
Trace Width
EFFICIENCY AND THERMAL INFORMATION
o
JA
1
θ
=
= 75 C/W
Derating Factor
0.0133
(16)
o
A
J
JA Dmax
T Max = T Max
θ
P
= 150
75(1) = 75 C
-
(17)
OPERATION WITH DACs AND CODECs
FILTER FREE OPERATION
SLOS595 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com
Place all the external components as close as possible to the TPA2100P1. Placing the decoupling capacitor as
close as possible to the TPA2100P1 is important for the efficiency of the Class-D amplifier. Any resistance or
inductance in the trace between the device and the capacitor can cause a loss in efficiency.
Recommended trace width at the solder balls is 75
m to 100 m to prevent solder wicking onto wider PCB
traces.
For high current pins (SW, VccOUT, VccIN, GND, and audio output pins) of the TPA2100P1, use 100
m trace
widths at the solder balls and at least 500
m PCB traces to ensure proper performance and output power for
the device.
For the remaining signals of the TPA2100P1, use 75
m to 100 m trace widths at the solder balls. The audio
input pins (IN- and IN+) must run side-by-side to maximize common-mode noise cancellation.
The maximum ambient temperature depends on the heat-sinking ability of the PCB system. The derating factor
for the packages are shown in the dissipation rating table. Converting this to
θ
JA for the WCSP package:
Given
θ
JA of 75°C/W, the maximum allowable junction temperature of 150°C, and the maximum estimated
internal dissipation of 1 W (driving 1
F speaker with 6 Vrms 15 kHz sine wave, the maximum ambient
temperature is calculated with Equation 17.
Equation 17 shows that the calculated maximum ambient temperature is 75°C at maximum power dissipation.
The TPA2100P1 is designed with thermal protection that turns the device off when the junction temperature
surpasses 150°C to prevent damage to the IC. Using the resistor- speaker - resistor or the resistor - speaker load
configurations dramatically increases the temperature of the TPA2100P1 since those configurations require a
much higher output current.
When using Class-D amplifiers with CODECs and DACs, sometimes there is an increase in the output noise floor
from the audio amplifier. This occurs when the output frequencies of the CODEC/DAC mix with the switching
frequencies of the audio amplifier input stage.
The TPA2100P1 has a built-in low-pass filter to reduce CODEC/DAC out-of-band noise that could mix with the
switching frequency of the Class-D amplifier.
A ferrite bead filter is not required for operation with the resistor – speaker – resistor load configuration or with
the resistor – speaker – inductor load configuration. In order to achieve low radiated emissions, the resistor
and/or inductor should be placed within 1 cm of the output of the amplifier and followed with a 100 pF to 1000 pF
capacitor to GND. Figure 19 and Figure 20 show typical load configurations to reduce radiated emissions.
16
Copyright 2008, Texas Instruments Incorporated
Product Folder Link(s): TPA2100P1
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPA2100P1YZHT | 功能描述:音頻放大器 19Vpp Mono Class D Audio Amplifier 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 |
| TPA2100P1YZHT | 制造商:Texas Instruments 功能描述:Audio Power Amplifier IC |
| TPA21CCGPC0 | 制造商:TE Connectivity 功能描述:Switch Push Button N.O. DPST Round Plunger 20VAC 20VDC 0.4VA Momentary Contact PC Pins Thru-Hole Loose Piece |
| TPA21CCGRA0 | 功能描述:按鈕開關 SWITCH PB 2XSPST MOM RND BLK RoHS:否 制造商:C&K Components 觸點形式:2 NC - 2 NO 開關功能:ON ? OFF 電流額定值:4 A 電壓額定值 AC:12 V to 250 V 電壓額定值 DC:12 V to 50 V 功率額定值: 安裝風格:Through Hole 照明:Illuminated 照明顏色:None IP 等級:IP 40 端接類型:Solder 觸點電鍍:Silver 執行器:Square 蓋顏色: 封裝: 可燃性等級:UL 94 V-0 |
| TPA21CCGRA004 | 功能描述:按鈕開關 FLUSHBUTTON RoHS:否 制造商:C&K Components 觸點形式:2 NC - 2 NO 開關功能:ON ? OFF 電流額定值:4 A 電壓額定值 AC:12 V to 250 V 電壓額定值 DC:12 V to 50 V 功率額定值: 安裝風格:Through Hole 照明:Illuminated 照明顏色:None IP 等級:IP 40 端接類型:Solder 觸點電鍍:Silver 執行器:Square 蓋顏色: 封裝: 可燃性等級:UL 94 V-0 |
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