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UC2845ADTRG4 Fiches technique(PDF) 2 Page - Texas Instruments

No de pièce UC2845ADTRG4
Description  Current-Mode PWM Controller
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
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UC2845ADTRG4 Fiches technique(HTML) 2 Page - Texas Instruments

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UC1842A, UC1843A, UC1844A, UC1845A
UC2842A, UC2843A, UC2844A, UC2845A
UC3842A, UC3843A, UC3844A, UC3845A
SLUS224E – SEPTEMBER 1994 – REVISED JULY 2016
www.ti.com
Product Folder Links: UC1842A UC1843A UC1844A UC1845A UC2842A UC2843A UC2844A UC2845A UC3842A
UC3843A UC3844A UC3845A
Submit Documentation Feedback
Copyright © 1994–2016, Texas Instruments Incorporated
Table of Contents
1
Features .................................................................. 1
2
Applications ........................................................... 1
3
Description ............................................................. 1
4
Revision History..................................................... 2
5
Device Comparison Table..................................... 3
6
Pin Configuration and Functions ......................... 3
7
Specifications......................................................... 5
7.1
Absolute Maximum Ratings ...................................... 5
7.2
ESD Ratings.............................................................. 5
7.3
Recommended Operating Conditions ....................... 5
7.4
Thermal Information .................................................. 6
7.5
Electrical Characteristics........................................... 6
7.6
Typical Characteristics .............................................. 8
8
Detailed Description .............................................. 9
8.1
Overview ................................................................... 9
8.2
Functional Block Diagram ......................................... 9
8.3
Feature Description................................................... 9
8.4
Device Functional Modes........................................ 12
9
Application and Implementation ........................ 13
9.1
Application Information............................................ 13
9.2
Typical Application .................................................. 13
10
Power Supply Recommendations ..................... 18
11
Layout................................................................... 19
11.1
Layout Guidelines ................................................. 19
11.2
Layout Example .................................................... 20
12
Device and Documentation Support ................. 21
12.1
Device Support...................................................... 21
12.2
Documentation Support ........................................ 21
12.3
Related Links ........................................................ 21
12.4
Receiving Notification of Documentation Updates 22
12.5
Community Resources.......................................... 22
12.6
Trademarks ........................................................... 22
12.7
Electrostatic Discharge Caution ............................ 22
12.8
Glossary ................................................................ 22
13
Mechanical, Packaging, and Orderable
Information ........................................................... 22
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision D (July 2011) to Revision E
Page
Added Applications section, Device Information table, Pin Configuration and Functions section, Specifications
section, Detailed Description section, Application and Implementation section, Power Supply Recommendations
section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable
Information section ................................................................................................................................................................. 1
Deleted Ordering Information Table; see POA at the end of the datasheet .......................................................................... 1
Changes from Revision C (August 2010) to Revision D
Page
Updated Absolute Maximum ratings table with maximum negative voltage and GND pin notes. ......................................... 5
Changes from Revision B (September 2009) to Revision C
Page
Corrected ISINK voltage............................................................................................................................................................ 7


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