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

X  

LM25574 Fiches technique(PDF) 10 Page - Texas Instruments

No de pièce LM25574
Description  SIMPLE SWITCHER 42V, 0.5A Step-Down Switching Regulator
Download  30 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

LM25574 Fiches technique(HTML) 10 Page - Texas Instruments

Back Button LM25574_16 Datasheet HTML 6Page - Texas Instruments LM25574_16 Datasheet HTML 7Page - Texas Instruments LM25574_16 Datasheet HTML 8Page - Texas Instruments LM25574_16 Datasheet HTML 9Page - Texas Instruments LM25574_16 Datasheet HTML 10Page - Texas Instruments LM25574_16 Datasheet HTML 11Page - Texas Instruments LM25574_16 Datasheet HTML 12Page - Texas Instruments LM25574_16 Datasheet HTML 13Page - Texas Instruments LM25574_16 Datasheet HTML 14Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 10 / 30 page
background image
SYNC
10k
S
R
Q
Q
DEADTIME
ONE-SHOT
5V
2.5V
I = f(RT)
SYNC
LM25574
UP TO 5 TOTAL
DEVICES
LM25574
SYNC
SYNC
AGND
LM25574
SW
CLK
SYNC
SW
500 ns
LM25574, LM25574-Q1
SNVS483G – JANUARY 2007 – REVISED APRIL 2013
www.ti.com
Figure 10. Sync from External Clock
Figure 11. Sync from Multiple Devices
Multiple LM25574 devices can be synchronized together simply by connecting the SYNC pins together. In this
configuration all of the devices will be synchronized to the highest frequency device. The diagram in Figure 12
illustrates the SYNC input/output features of the LM25574. The internal oscillator circuit drives the SYNC pin with
a strong pull-down / weak pull-up inverter. When the SYNC pin is pulled low either by the internal oscillator or an
external clock, the ramp cycle of the oscillator is terminated and a new oscillator cycle begins. Thus, if the SYNC
pins of several LM25574 IC’s are connected together, the IC with the highest internal clock frequency will pull the
connected SYNC pins low first and terminate the oscillator ramp cycles of the other IC’s. The LM25574 with the
highest programmed clock frequency will serve as the master and control the switching frequency of the all the
devices with lower oscillator frequency.
Figure 12. Simplified Oscillator Block Diagram and SYNC I/O Circuit
10
Submit Documentation Feedback
Copyright © 2007–2013, Texas Instruments Incorporated
Product Folder Links: LM25574 LM25574-Q1


Numéro de pièce similaire - LM25574_16

FabricantNo de pièceFiches techniqueDescription
logo
Texas Instruments
LM25574 TI1-LM25574_14 Datasheet
929Kb / 30P
[Old version datasheet]   SIMPLE SWITCHER짰 42V, 0.5A Step-Down Switching Regulator
LM25574 TI1-LM25574_17 Datasheet
970Kb / 30P
[Old version datasheet]   SIMPLE SWITCHER 42V, 0.5A Step-Down Switching Regulator
More results

Description similaire - LM25574_16

FabricantNo de pièceFiches techniqueDescription
logo
Texas Instruments
LM25574 TI1-LM25574_17 Datasheet
970Kb / 30P
[Old version datasheet]   SIMPLE SWITCHER 42V, 0.5A Step-Down Switching Regulator
LM25574MTX TI-LM25574MTX Datasheet
886Kb / 29P
[Old version datasheet]   LM25574/LM25574-Q1 SIMPLE SWITCHER 42V, 0.5A Step-Down Switching Regulator
LM25574MT TI-LM25574MT Datasheet
886Kb / 29P
[Old version datasheet]   LM25574/LM25574-Q1 SIMPLE SWITCHER 42V, 0.5A Step-Down Switching Regulator
LM25574 TI1-LM25574_14 Datasheet
929Kb / 30P
[Old version datasheet]   SIMPLE SWITCHER짰 42V, 0.5A Step-Down Switching Regulator
logo
National Semiconductor ...
LM25574_0703 NSC-LM25574_0703 Datasheet
414Kb / 22P
   SIMPLE SWITCHER짰 42V, 0.5A Step-Down Switching Regulator
logo
Texas Instruments
LM25576 TI1-LM25576_17 Datasheet
1Mb / 29P
[Old version datasheet]   SIMPLE SWITCHER 42V, 3A Step-Down Switching Regulator
LM25575 TI1-LM25575_17 Datasheet
1Mb / 32P
[Old version datasheet]   SIMPLE SWITCHER 42V, 1.5A Step-Down Switching Regulator
logo
National Semiconductor ...
LM5574 NSC-LM5574_09 Datasheet
446Kb / 22P
   SIMPLE SWITCHER 75V, 0.5A Step-Down Switching Regulator
logo
Texas Instruments
LM5574 TI1-LM5574_17 Datasheet
964Kb / 29P
[Old version datasheet]   SIMPLE SWITCHER 75V, 0.5A Step-Down Switching Regulator
logo
National Semiconductor ...
LM25007 NSC-LM25007_08 Datasheet
282Kb / 12P
   42V, 0.5A Step-Down Switching Regulator
More results


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


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