поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

LM1949 датащи(PDF) 6 Page - Texas Instruments

Click here to check the latest version.
номер детали LM1949
подробное описание детали  Injector Drive Controller
Download  17 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI1 - Texas Instruments

LM1949 датащи(HTML) 6 Page - Texas Instruments

Back Button LM1949 Datasheet HTML 2Page - Texas Instruments LM1949 Datasheet HTML 3Page - Texas Instruments LM1949 Datasheet HTML 4Page - Texas Instruments LM1949 Datasheet HTML 5Page - Texas Instruments LM1949 Datasheet HTML 6Page - Texas Instruments LM1949 Datasheet HTML 7Page - Texas Instruments LM1949 Datasheet HTML 8Page - Texas Instruments LM1949 Datasheet HTML 9Page - Texas Instruments LM1949 Datasheet HTML 10Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 17 page
background image
LM1949
SNLS349C – FEB 1995 – REVISED MARCH 2013
www.ti.com
Typical Circuit Waveforms
Figure 18.
APPLICATION HINTS
The injector driver integrated circuits were designed to be used in conjunction with an external controller. The
LM1949 derives its input signal from either a control oriented processor (COPS™), microprocessor, or some
other system. This input signal, in the form of a square wave with a variable duty cycle and/or variable frequency,
is applied to Pin 1. In a typical system, input frequency is proportional to engine RPM. Duty cycle is proportional
to the engine load. The circuits discussed are suitable for use in either open or closed loop systems. In closed
loop systems, the engine exhaust is monitored and the air-to-fuel mixture is varied (via the duty cycle) to
maintain a perfect, or stochiometric, ratio.
INJECTORS
Injectors and solenoids are available in a vast array of sizes and characteristics. Therefore, it is necessary to be
able to design a drive system to suit each type of solenoid. The purpose of this section is to enable any system
designer to use and modify the LM1949 and associated circuitry to meet the system specifications.
Fuel injectors can usually be modeled by a simple RL circuit. Figure 19 shows such a model for a typical fuel
injector. In actual operation, the value of L1 will depend upon the status of the solenoid. In other words, L1 will
change depending upon whether the solenoid is open or closed. This effect, if pronounced enough, can be a
valuable aid in determining the current necessary to open a particular type of injector. The change in inductance
manifests itself as a breakpoint in the initial rise of solenoid current. The waveforms at the sense input show this
occurring at approximately 130 mV. Thus, the current necessary to overcome the constrictive forces of that
particular injector is 1.3 amperes.
Figure 19. Model of a Typical Fuel Injector
6
Submit Documentation Feedback
Copyright © 1995–2013, Texas Instruments Incorporated
Product Folder Links: LM1949


Аналогичный номер детали - LM1949

производительномер деталидатащиподробное описание детали
logo
National Semiconductor ...
LM1949 NSC-LM1949 Datasheet
214Kb / 10P
   LM1949 Injector Drive Controller
logo
Texas Instruments
LM1949 TI-LM1949 Datasheet
766Kb / 17P
[Old version datasheet]   LM1949 Injector Drive Controller
REVISED MARCH 2013
logo
National Semiconductor ...
LM1949M NSC-LM1949M Datasheet
214Kb / 10P
   LM1949 Injector Drive Controller
LM1949N NSC-LM1949N Datasheet
214Kb / 10P
   LM1949 Injector Drive Controller
logo
Texas Instruments
LM1949N TI-LM1949N Datasheet
766Kb / 17P
[Old version datasheet]   LM1949 Injector Drive Controller
REVISED MARCH 2013
More results

Аналогичное описание - LM1949

производительномер деталидатащиподробное описание детали
logo
Texas Instruments
LM1949 TI-LM1949 Datasheet
766Kb / 17P
[Old version datasheet]   LM1949 Injector Drive Controller
REVISED MARCH 2013
logo
National Semiconductor ...
LM1949 NSC-LM1949 Datasheet
214Kb / 10P
   LM1949 Injector Drive Controller
logo
Yuan Dean Scientific., ...
PE101G YUANDEAN-PE101G Datasheet
564Kb / 2P
   POE Injector
logo
PHOENIX CONTACT
2703007 PHOENIX-2703007 Datasheet
986Kb / 29P
   Injector - INJ 1010
Dec 6, 2022
logo
Level One
POI-3000 LVL1-POI-3000 Datasheet
628Kb / 3P
   Gigabit PoE Injector
logo
Shenzhen Huazhimei Semi...
HM1642 HMSEMI-HM1642 Datasheet
672Kb / 7P
   LED Drive controller
logo
Advanced Technical Mate...
DI17X ATM-DI17X Datasheet
54Kb / 1P
   OUTLINE DC INJECTOR
logo
Level One
POI-2001 LVL1-POI-2001 Datasheet
1Mb / 2P
   Gigabit PoE Injector
logo
PHOENIX CONTACT
2703005 PHOENIX-2703005 Datasheet
1Mb / 34P
   Injector - INJ 1000
2703008 PHOENIX-2703008 Datasheet
987Kb / 29P
   Injector - INJ 1010-T
Dec 6, 2022
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17


датащи скачать

Go To PDF Page


ссылки URL




Конфиденциальность
ALLDATASHEETRU.COM
Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   обмен ссыками   |   поиск по производителю
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