công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

LM2743MTCX bảng dữ liệu(PDF) 11 Page - Texas Instruments

tên linh kiện LM2743MTCX
Giải thích chi tiết về linh kiện  LM2743 Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller
Download  37 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  TI [Texas Instruments]
Trang chủ  http://www.ti.com
Logo TI - Texas Instruments

LM2743MTCX bảng dữ liệu(HTML) 11 Page - Texas Instruments

Back Button LM2743MTCX Datasheet HTML 7Page - Texas Instruments LM2743MTCX Datasheet HTML 8Page - Texas Instruments LM2743MTCX Datasheet HTML 9Page - Texas Instruments LM2743MTCX Datasheet HTML 10Page - Texas Instruments LM2743MTCX Datasheet HTML 11Page - Texas Instruments LM2743MTCX Datasheet HTML 12Page - Texas Instruments LM2743MTCX Datasheet HTML 13Page - Texas Instruments LM2743MTCX Datasheet HTML 14Page - Texas Instruments LM2743MTCX Datasheet HTML 15Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 37 page
background image
VOUT2 = VOUT1
RT1
RT1 + RT2
5V
1.8V
VOUT1
VOUT2
0.65 = VOUT1
RT1
RT1 + RT2
Master Power
Supply
VOUT1 = 5V
SS/TRACK
LM2743
RT2
1 k:
RT1
150:
RFB2
10 k:
RFB1
5 k:
FB
VOUT2 = 1.8V
VSS = 0.65V
VFB
LM2743
www.ti.com
SNVS276G – APRIL 2004 – REVISED MARCH 2013
Figure 23. Tracking Circuit
One way to use the tracking feature is to design the tracking resistor divider so that the master supply’s output
voltage (VOUT1) and the LM2743’s output voltage (represented symbolically in Figure 23 as VOUT2, i.e. without
explicitly showing the power components) both rise together and reach their target values at the same time. For
this case, the equation governing the values of the tracking divider resistors RT1 and RT2 is:
The current through RT1 should be about 3 mA to 4 mA for precise tracking. The final voltage of the SS/TRACK
pin should be set higher than the feedback voltage of 0.6V (say about 0.65V as in the above equation). If the
master supply voltage was 5V and the LM2743 output voltage was 1.8V, for example, then the value of RT1
needed to give the two supplies identical soft-start times would be 150
Ω. A timing diagram for the equal soft-start
time case is shown in Figure 24.
Figure 24. Tracking with Equal Soft-Start Time
TRACKING A VOLTAGE SLEW RATE
The tracking feature can alternatively be used not to make both rails reach regulation at the same time but rather
to have similar rise rates (in terms of output dV/dt). This method ensures that the output voltage of the LM2743
always reaches regulation before the output voltage of the master supply. Because the output of the master
supply is divided down, in order to track properly the output voltage of the LM2743 must be lower than the
voltage of the master supply. In this case, the tracking resistors can be determined based on the following
equation:
Copyright © 2004–2013, Texas Instruments Incorporated
Submit Documentation Feedback
11
Product Folder Links: LM2743


Số phần tương tự - LM2743MTCX

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
National Semiconductor ...
LM2743MTCX NSC-LM2743MTCX Datasheet
1Mb / 23P
   N-Channel FET Synchronous Buck Regulator Controller for Conversion from 3.3V
logo
Texas Instruments
LM2743MTCX TI1-LM2743MTCX Datasheet
1Mb / 41P
[Old version datasheet]   LM2743 Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller
LM2743MTCX/NOPB TI1-LM2743MTCX/NOPB Datasheet
1Mb / 41P
[Old version datasheet]   LM2743 Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller
More results

Mô tả tương tự - LM2743MTCX

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
Texas Instruments
LM2743 TI1-LM2743 Datasheet
1Mb / 41P
[Old version datasheet]   LM2743 Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller
LM2743 TI-LM2743_15 Datasheet
1Mb / 41P
[Old version datasheet]   LM2743 Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller
logo
National Semiconductor ...
LM2746 NSC-LM2746 Datasheet
1Mb / 24P
   Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller
logo
Texas Instruments
LM2743 TI1-LM2743_14 Datasheet
1Mb / 37P
[Old version datasheet]   Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller
LM2744 TI1-LM2744 Datasheet
1Mb / 32P
[Old version datasheet]   Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller with External Reference
LM2744 TI-LM2744_15 Datasheet
1Mb / 33P
[Old version datasheet]   Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller with External Reference
logo
National Semiconductor ...
LM2744 NSC-LM2744 Datasheet
663Kb / 22P
   Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller with External Reference
logo
Winbond
W83321S WINBOND-W83321S Datasheet
795Kb / 18P
   N-Channel FET Synchronous Buck Regulator Controller
logo
Nuvoton Technology Corp...
W83320G NUVOTON-W83320G Datasheet
422Kb / 20P
   N-Channel FET Synchronous Buck Regulator Controller
logo
Winbond
W83320S WINBOND-W83320S Datasheet
506Kb / 18P
   N-Channel FET Synchronous Buck Regulator 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


bảng dữ liệu tải về

Go To PDF Page


Link URL




Chính sách bảo mật
ALLDATASHEET.VN
Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
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