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

X  

KA3844B Fiches technique(PDF) 6 Page - Fairchild Semiconductor

No de pièce KA3844B
Description  SMPS Controller
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  FAIRCHILD [Fairchild Semiconductor]
Site Internet  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

KA3844B Fiches technique(HTML) 6 Page - Fairchild Semiconductor

Back Button KA3844B Datasheet HTML 2Page - Fairchild Semiconductor KA3844B Datasheet HTML 3Page - Fairchild Semiconductor KA3844B Datasheet HTML 4Page - Fairchild Semiconductor KA3844B Datasheet HTML 5Page - Fairchild Semiconductor KA3844B Datasheet HTML 6Page - Fairchild Semiconductor KA3844B Datasheet HTML 7Page - Fairchild Semiconductor KA3844B Datasheet HTML 8Page - Fairchild Semiconductor KA3844B Datasheet HTML 9Page - Fairchild Semiconductor KA3844B Datasheet HTML 10Page - Fairchild Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 12 page
background image
KA3842B/KA3843B/KA3844B/KA3845B
6
Figure 5. Oscillator Waveforms and Maximum Duty Cycle
Oscillator timing capacitor, CT, is charged by VREF through RT, and discharged by an internal current source. During the dis-
charge time, the internal clock signal blanks the output to the low state. Selection of RT and CT therefore determines both
oscillator frequency and maximum duty cycle. Charge and discharge times are determined by the formulas:
tc = 0.55 RT CT
Frequency, then, is: f=(tc + td)
-1
Figure 8. Shutdown Techniques
Figure 6. Oscillator Dead Time & Frequency
Figure 7. Timing Resistance vs Frequency
t
D
R
TCTIn
0.0063R
T
2.7
0.0063R
T
4
----------------------------------------


=
ForRT
5K
Ω f
1.8
R
TCT
---------------
=
,
>
(Deadtime vs CT RT > 5kΩ)


Numéro de pièce similaire - KA3844B

FabricantNo de pièceFiches techniqueDescription
logo
Fairchild Semiconductor
KA3844B FAIRCHILD-KA3844B Datasheet
125Kb / 10P
   SMPS Controller
logo
ON Semiconductor
KA3844B ONSEMI-KA3844B Datasheet
243Kb / 12P
   SMPS Controller
Rev. 1.0.2
logo
Fairchild Semiconductor
KA3844BD FAIRCHILD-KA3844BD Datasheet
125Kb / 10P
   SMPS Controller
logo
ON Semiconductor
KA3844BD ONSEMI-KA3844BD Datasheet
243Kb / 12P
   SMPS Controller
Rev. 1.0.2
More results

Description similaire - KA3844B

FabricantNo de pièceFiches techniqueDescription
logo
Fairchild Semiconductor
KA7511 FAIRCHILD-KA7511 Datasheet
56Kb / 8P
   SMPS Controller
KA3843AC FAIRCHILD-KA3843AC Datasheet
47Kb / 6P
   SMPS Controller
KA3842B FAIRCHILD-KA3842B_02 Datasheet
125Kb / 10P
   SMPS Controller
UC3842A FAIRCHILD-UC3842A Datasheet
42Kb / 8P
   SMPS Controller
logo
ARTSCHIP ELECTRONICS CO...
MC34063A ARTSCHIP-MC34063A Datasheet
334Kb / 10P
   SMPS Controller
logo
Fairchild Semiconductor
UC3842 FAIRCHILD-UC3842 Datasheet
127Kb / 12P
   SMPS Controller
UC3846 FAIRCHILD-UC3846 Datasheet
67Kb / 10P
   SMPS Controller
KA3525A FAIRCHILD-KA3525A Datasheet
78Kb / 5P
   SMPS CONTROLLER
KA7515 FAIRCHILD-KA7515 Datasheet
36Kb / 6P
   SMPS Controller
logo
ON Semiconductor
KA3525A ONSEMI-KA3525A Datasheet
207Kb / 8P
   SMPS Controller
Rev. 1.0.1
KA3843B ONSEMI-KA3843B Datasheet
243Kb / 12P
   SMPS Controller
Rev. 1.0.2
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12


Fiches technique Télécharger

Go To PDF Page


Lien URL




Politique de confidentialité
ALLDATASHEET.FR
ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   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