UCC28951
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ZHCSIQ7A –AUGUST 2018 –REVISED DECEMBER 2021
Table of Contents
7.2 Functional Block Diagram.........................................20
7.3 Feature Description...................................................21
7.4 Device Functional Modes..........................................38
8 Application and Implementation..................................39
8.1 Application Information............................................. 39
8.2 Typical Application.................................................... 42
9 Power Supply Recommendations................................71
10 Layout...........................................................................72
10.1 Layout Guidelines................................................... 72
10.2 Layout Example...................................................... 73
11 Device and Documentation Support..........................74
11.1 Device Support........................................................74
11.2 Documentation Support.......................................... 74
11.3 Receiving Notification of Documentation Updates..74
11.4 Community Resources............................................74
11.5 Trademarks............................................................. 74
1 特性................................................................................... 1
2 应用................................................................................... 1
3 说明................................................................................... 1
4 Revision History.............................................................. 2
5 Pin Configuration and Functions...................................3
6 Specifications.................................................................. 5
6.1 Absolute Maximum Ratings........................................ 5
6.2 ESD Ratings............................................................... 5
6.3 Recommended Operating Conditions.........................5
6.4 Thermal Information....................................................6
6.5 Electrical Characteristics.............................................7
6.6 Timing Requirements................................................10
6.7 Dissipation Ratings................................................... 10
6.8 Typical Characteristics..............................................12
7 Detailed Description......................................................19
7.1 Overview...................................................................19
4 Revision History
注：以前版本的页码可能与当前版本的页码不同
Changes from Revision * (September 2018) to Revision A (December 2021)
Page
• 通篇将旧术语更改为领导者 和跟随者 ................................................................................................................1
• 更新了整个文档中的表格、图和交叉参考的编号格式.........................................................................................1
• Changed note in Soft-Start and Enable (SS/EN) section ................................................................................ 22
• Updated all equations in Soft-Start and Enable (SS/EN) section .................................................................... 22
• Updated mo calculation equation......................................................................................................................29
• Updated all equations in Cycle-by-Cycle Current Limit Current Protection and Hiccup Mode section.............33
• Updated ICINRMS calculation equation...............................................................................................................54
• Updated resistor RT calculation equation......................................................................................................... 59
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English Data Sheet: SLUSDB2
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