Motore di ricerca datesheet componenti elettronici
  Italian  ▼
ALLDATASHEETIT.COM

X  

LM25007 Scheda tecnica(PDF) 9 Page - Texas Instruments

Click here to check the latest version.
Il numero della parte LM25007
Spiegazioni elettronici  LM25007 42V, 0.5A Step-Down Switching Regulator
Download  19 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

LM25007 Scheda tecnica(HTML) 9 Page - Texas Instruments

Back Button LM25007 Datasheet HTML 5Page - Texas Instruments LM25007 Datasheet HTML 6Page - Texas Instruments LM25007 Datasheet HTML 7Page - Texas Instruments LM25007 Datasheet HTML 8Page - Texas Instruments LM25007 Datasheet HTML 9Page - Texas Instruments LM25007 Datasheet HTML 10Page - Texas Instruments LM25007 Datasheet HTML 11Page - Texas Instruments LM25007 Datasheet HTML 12Page - Texas Instruments LM25007 Datasheet HTML 13Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 19 page
background image
+
+
+
7V SERIES REGULATOR
SW
LM25007
VIN
BST
VCC
SELF-BIAS
DIODE
0.01 PF
0.1 PF
10V
10k
30k
LM25007
www.ti.com
SNVS401C – JANUARY 2006 – REVISED FEBRUARY 2013
Figure 7. Self Biased Configuration
Over-Voltage Comparator
The over-voltage comparator is provided to protect the output from overvoltage conditions due to sudden input
line voltage changes or output loading changes. The over-voltage comparator monitors the FB pin versus an
internal 2.875V reference. If the voltage at FB rises above 2.875V the comparator immediately terminates the
buck switch on-time pulse.
ON Time generator and Shutdown
The on-time of the LM25007 is set inversely proportional to the input voltage by an external resistor connected
between RON/SD and VIN. The RON/SD terminal is a low impedance input biased at approximately 1.5V. The
current through the resistor and into the RON/SD pin is approximately proportional to Vin and used internally to
control the on-timer. This scheme of input voltage feed-forward hysteretic operation achieves nearly constant
operational frequency over varying line and load conditions. The on-time equation for the LM25007 is :
Ton = 1.42 x 10
-10 x R
ON / VIN
(4)
The RON/SD pin of the LM25007 also provides a shutdown function which disables the regulator and
significantly decreases quiescent power dissipation. By pulling the pin below 0.7V activates the low power
shutdown mode. The VIN quiescent current in the shutdown mode is approximately 100µA internal to the
LM25007 plus the current in the RON resistor. See Figure 8.
Copyright © 2006–2013, Texas Instruments Incorporated
Submit Documentation Feedback
9
Product Folder Links: LM25007


Codice articolo simile - LM25007

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
National Semiconductor ...
LM25007 NSC-LM25007 Datasheet
617Kb / 12P
   42V, 0.5A Step-Down Switching Regulator
LM25007 NSC-LM25007 Datasheet
282Kb / 12P
   42V, 0.5A Step-Down Switching Regulator
LM25007 NSC-LM25007 Datasheet
181Kb / 4P
   Boot Capacitor Regulation in LM25007 Constant-On-Time (COT) Converter
logo
Texas Instruments
LM25007 TI1-LM25007 Datasheet
933Kb / 17P
[Old version datasheet]   42V, 0.5A Step-Down Switching Regulator
LM25007 TI-LM25007 Datasheet
956Kb / 20P
[Old version datasheet]   LM25007 42V, 0.5A Step-Down Switching Regulator
More results

Descrizione simile - LM25007

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
Texas Instruments
LM25007 TI-LM25007_15 Datasheet
956Kb / 20P
[Old version datasheet]   LM25007 42V, 0.5A Step-Down Switching Regulator
LM25007MMX TI1-LM25007MMX Datasheet
950Kb / 19P
[Old version datasheet]   LM25007 42V, 0.5A Step-Down Switching Regulator
logo
National Semiconductor ...
LM25007 NSC-LM25007_08 Datasheet
282Kb / 12P
   42V, 0.5A Step-Down Switching Regulator
LM25007 NSC-LM25007 Datasheet
617Kb / 12P
   42V, 0.5A Step-Down Switching Regulator
logo
Texas Instruments
LM25007 TI1-LM25007_14 Datasheet
933Kb / 17P
[Old version datasheet]   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
LM25574 TI1-LM25574_16 Datasheet
973Kb / 30P
[Old version datasheet]   SIMPLE SWITCHER 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
logo
TelCom Semiconductor, I...
TC2574 TELCOM-TC2574 Datasheet
219Kb / 25P
   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


Scheda tecnica Scarica

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEETIT.COM
Lei ha avuto il aiuto da alldatasheet?  [ DONATE ] 

Di alldatasheet   |   Richest di pubblicita   |   contatti   |   Privacy Policy   |   scambio Link   |   Ricerca produttore
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