Moteur de recherche de fiches techniques de composants électroniques
  French  ▼
ALLDATASHEET.FR

X  

Preview PDF HTML

TS4909 Fiches technique(PDF) 24 Page - STMicroelectronics

No de pièce TS4909
Description  Dual mode low power 150mW stereo headphone amplifier with capacitor-less and single-ended outputs
PDF  32 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TS4909 Fiches technique(HTML) 24 Page - STMicroelectronics

Back Button TS4909 Datasheet HTML 20Page - STMicroelectronics TS4909 Datasheet HTML 21Page - STMicroelectronics TS4909 Datasheet HTML 22Page - STMicroelectronics TS4909 Datasheet HTML 23Page - STMicroelectronics TS4909 Datasheet HTML 24Page - STMicroelectronics TS4909 Datasheet HTML 25Page - STMicroelectronics TS4909 Datasheet HTML 26Page - STMicroelectronics TS4909 Datasheet HTML 27Page - STMicroelectronics TS4909 Datasheet HTML 28Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 24 / 32 page
background image
Application information
TS4909
24/32
4.4
Power dissipation and efficiency
Hypotheses:
●
Voltage and current (Vout and Iout) in the load are sinusoidal.
●
Supply voltage (VCC) is a pure DC source.
Regarding the load we have:
and
and
4.4.1
Single-ended configuration
The average current delivered by the power supply voltage is:
Figure 80.
Current delivered by power supply voltage in single-ended configuration
The power delivered by the power supply voltage is:
Therefore, the power dissipation by each power 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
()
=
Icc
AVG
1
2
π
------
V
PEAK
R
L
-----------------
t
()
sin
t
d
0
π
∫
V
PEAK
πR
L
----------------- A
()
==
Icc (t)
Time
T/2
T
Icc
AVG
Vpeak/R
L
03T/2
2T
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
=



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32


Fiches technique Télécharger

Go To PDF Page


Lien URL



ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Lien vers la fiche technique    |   Echange de liens   |   Fabricants
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com