UC1846-SP_15 Datasheet, PDF (2/29 Pages) Texas Instruments – Current-Mode PWM Controller

UC1846-SP
SLUS871C – JANUARY 2009 – REVISED OCTOBER 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 6
6.1 Absolute Maximum Ratings ...................................... 6
6.2 ESD Ratings.............................................................. 6
6.3 Recommended Operating Conditions....................... 6
6.4 Thermal Information .................................................. 6
6.5 Electrical Characteristics........................................... 7
6.6 Typical Characteristics .............................................. 8
7 Detailed Description .............................................. 9
7.1 Overview ................................................................... 9
7.2 Functional Block Diagram ......................................... 9
7.3 Feature Description................................................... 9
7.4 Device Functional Modes ....................................... 13
8 Application and Implementation ........................ 15
8.1 Application Information............................................ 15
8.2 Typical Applications ................................................ 15
9 Power Supply Recommendations...................... 22
10 Layout................................................................... 22
10.1 Layout Guidelines ................................................. 22
10.2 Layout Example .................................................... 22
11 Device and Documentation Support ................. 23
11.1 Community Resources.......................................... 23
11.2 Trademarks ........................................................... 23
11.3 Electrostatic Discharge Caution ............................ 23
11.4 Glossary ................................................................ 23
12 Mechanical, Packaging, and Orderable
Information ........................................................... 23
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision B (October 2011) to Revision C
Page
• Updated from "30 kRad" to "40 kRAD" .................................................................................................................................. 1
• Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section ................................................................................................. 1
• Added KGD package to Device Information .......................................................................................................................... 1
2
Submit Documentation Feedback
Product Folder Links: UC1846-SP
Copyright © 2009–2015, Texas Instruments Incorporated