參數(shù)資料
型號(hào)： TS4956EIJT
廠商： STMICROELECTRONICS
元件分類： 音頻／視頻放大
英文描述： 1.055 W, 2 CHANNEL, AUDIO AMPLIFIER, PBGA18
封裝： ROHS COMPLIANT, FCP-18
文件頁(yè)數(shù)： 35/55頁(yè)
文件大小： 1711K
代理商： TS4956EIJT
TS4956
Application information
40/55
4.3
Power dissipation and efficiency
Hypotheses:
●
The voltage and current in the load are sinusoidal (Vout and Iout).
●
The supply voltage is a pure DC source (VCC).
Regarding the load we have:
and
4.3.1
Single-ended output configuration (modes 5 and 6)
The average current delivered by the supply voltage is:
Figure 124. Current delivered by supply voltage in a single-ended output configuration
The power delivered by the supply voltage is:
Therefore, the power dissipation by the single-ended amplifier is
and the maximum value is obtained when:
V
out
V
PEAK
ωtV
()
sin
=
I
out
V
out
R
L
-----------A
()
=
P
out
V
PEAK
2
2R
L
----------------- A
()
=
cc
AVG
1
2
π
------
V
PEAK
R
L
-----------------
t
()
sin
t
d
0
π
∫
V
PEAK
πR
L
----------------- A
()
==
P
supply
V
CCICC
AVG
W
()
=
P
diss
P
supply Pout W
()
–
=
P
diss
2VCC
π R
L
-------------------P
out
P
out W
()
–
=
P
out
P
diss
0
=
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TS4956EIKJT 1.055 W, 2 CHANNEL, AUDIO AMPLIFIER, PBGA18
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TS4956EIKJT 功能描述:音頻放大器 Stereo Audio Amp System 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
TS4961TIQT 功能描述:音頻放大器 MONO CLASS D AUDIO 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
TS4962 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:2.8W filter-free mono class D audio power amplifier
TS4962_07 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:2.8W filter-free mono class D audio power amplifier
TS4962_10 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:2.8 W filter-free mono class D audio power amplifier
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