Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

LM3481-Q1 Datasheet(PDF) 15 Page - Texas Instruments

Click here to check the latest version.
Part No. LM3481-Q1
Description  LM3481 / -Q1 High-Efficiency Controller for Boost, SEPIC and Flyback DC-DC Converters
Download  38 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LM3481-Q1 Datasheet(HTML) 15 Page - Texas Instruments

Back Button LM3481-Q1 Datasheet HTML 11Page - Texas Instruments LM3481-Q1 Datasheet HTML 12Page - Texas Instruments LM3481-Q1 Datasheet HTML 13Page - Texas Instruments LM3481-Q1 Datasheet HTML 14Page - Texas Instruments LM3481-Q1 Datasheet HTML 15Page - Texas Instruments LM3481-Q1 Datasheet HTML 16Page - Texas Instruments LM3481-Q1 Datasheet HTML 17Page - Texas Instruments LM3481-Q1 Datasheet HTML 18Page - Texas Instruments LM3481-Q1 Datasheet HTML 19Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 15 / 38 page
background image
RFA =
fS
22 x 10
3
- 5.74
LM3481
DR
ISEN
RSEN
VIN
L1
D1
Q1
COUT
VOUT
RSL
+
CSEN
LM3481, LM3481-Q1
www.ti.com
SNVS346F – NOVEMBER 2007 – REVISED NOVEMBER 2014
Feature Description (continued)
It is good design practice to only add as much slope compensation as needed to avoid subharmonic oscillation.
Additional slope compensation minimizes the influence of the sensed current in the control loop. With very large
slope compensation the control loop characteristics are similar to a voltage mode regulator which compares the
error voltage to a saw tooth waveform rather than the inductor current.
Figure 23. Increasing the Slope of the Compensation Ramp
Figure 24.
ΔVSL vs RSL
7.3.4 Frequency Adjust, Synchronization, and Shutdown
The switching frequency of the LM3481 can be adjusted between 100 kHz and 1 MHz using a single external
resistor. This resistor must be connected between the FA/SYNC/SD pin and ground, as shown in Figure 25.
Refer to the Typical Characteristics to determine the value of the resistor required for a desired switching
frequency.
Equation 16 can also be used to estimate the frequency adjust resistor.
Where fS is in kHz and RFA in kΩ.
(16)
Copyright © 2007–2014, Texas Instruments Incorporated
Submit Documentation Feedback
15
Product Folder Links: LM3481 LM3481-Q1


Similar Part No. - LM3481-Q1

ManufacturerPart No.DatasheetDescription
National Semiconductor (TI)
National Semiconductor ...
LM3481 NSC-LM3481 Datasheet
445Kb / 22P
   High Efficiency Low-Side N-Channel Controller for Switching Regulators
Texas Instruments
Texas Instruments
LM3481 TI-LM3481 Datasheet
1Mb / 30P
[Old version datasheet]   LM3481/LM3481Q High Efficiency Low-Side N-Channel Controller for Switching
National Semiconductor (TI)
National Semiconductor ...
LM3481MM NSC-LM3481MM Datasheet
445Kb / 22P
   High Efficiency Low-Side N-Channel Controller for Switching Regulators
Texas Instruments
Texas Instruments
LM3481MM TI-LM3481MM Datasheet
1Mb / 30P
[Old version datasheet]   LM3481/LM3481Q High Efficiency Low-Side N-Channel Controller for Switching
LM3481MM TI1-LM3481MM Datasheet
1Mb / 30P
[Old version datasheet]   LM3481/LM3481Q High Efficiency Low-Side N-Channel Controller for Switching Regulators
More results

Similar Description - LM3481-Q1

ManufacturerPart No.DatasheetDescription
Linear Technology
Linear Technology
LTC3873-5 LINER-LTC3873-5_15 Datasheet
181Kb / 16P
   Frequency Current Mode Boost/Flyback/SEPIC DC/DC Controller
LTC3873 LINER-LTC3873_15 Datasheet
183Kb / 16P
   Frequency Current Mode Boost/Flyback/SEPIC DC/DC Controller
Infineon Technologies AG
Infineon Technologies A...
TLD5098EL INFINEON-TLD5098EL Datasheet
1Mb / 39P
   DC/DC Boost, Buck-Boost, SEPIC controller
Rev. 1.0, 2010-10-13
TLD5095EL INFINEON-TLD5095EL Datasheet
1Mb / 31P
   DC/DC Boost, Buck-Boost, SEPIC controller
Rev. 1.1, 2009-12-16
Linear Technology
Linear Technology
LTC3805-5 LINER-LTC3805-5 Datasheet
212Kb / 20P
   Adjustable Frequency Current Mode Flyback/ Boost/SEPIC DC/DC Controller
LTC3805-5 LINER-LTC3805-5_15 Datasheet
264Kb / 20P
   Adjustable Frequency Current Mode Flyback/ Boost/SEPIC DC/DC Controller
LT3757A LINER-LT3757A_15 Datasheet
463Kb / 36P
   Boost, Flyback, SEPIC and Inverting Controller
LT3757 LINER-LT3757 Datasheet
496Kb / 36P
   Boost, Flyback, SEPIC and Inverting Controller
LT3757MPMSE LINER-LT3757MPMSE Datasheet
396Kb / 36P
   Boost, Flyback, SEPIC and Inverting Controller
LT3757IMSE LINER-LT3757IMSE Datasheet
463Kb / 36P
   Boost, Flyback, SEPIC and Inverting Controller
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  31  32  33  34  35  36  37  38 


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
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