2
LM3642
ZHCSC02H –SEPTEMBER 2012–REVISED SEPTEMBER 2015
www.ti.com.cn
Copyright © 2012–2015, Texas Instruments Incorporated
目目录录
1 特特性性.......................................................................... 1
2 应应用用.......................................................................... 1
3 说说明明.......................................................................... 1
4 修修订订历历史史记记录录 ........................................................... 2
5 Pin Configuration and Functions......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information.................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Timing Requirements................................................ 6
6.7 Typical Characteristics.............................................. 7
7 Detailed Description.............................................. 9
7.1 Overview ................................................................... 9
7.2 Functional Block Diagram ......................................... 9
7.3 Feature Description................................................. 10
7.4 Device Functional Modes........................................ 11
7.5 Programming........................................................... 12
7.6 Register Map........................................................... 15
8 Application and Implementation ........................ 18
8.1 Application Information............................................ 18
8.2 Typical Application ................................................. 18
9 Power Supply Recommendations...................... 22
10 Layout................................................................... 22
10.1 Layout Guidelines ................................................. 22
10.2 Layout Example .................................................... 23
11 器器件件和和文文档档支支持持 ..................................................... 24
11.1 器件支持................................................................ 24
11.2 文档支持................................................................ 24
11.3 商标 ....................................................................... 24
11.4 社区资源................................................................ 24
11.5 静电放电警告......................................................... 24
11.6 Glossary................................................................ 24
12 机机械械、、封封装装和和可可订订购购信信息息....................................... 24
4 修修订订历历史史记记录录
注:之前版本的页码可能与当前版本有所不同。
Changes from Revision G (December 2014) to Revision H Page
• Changed Handling Ratings table to ESD Ratings table per SDS format; move Storage Temp to Abs Max table ............... 4
• Added "If an I2C command is used to terminate the flash event, TI recommends selecting a flash time-out level 100
ms above the desired flash duration ." to end of Flash Time-Out subsection...................................................................... 10
Changes from Revision F (December 2013) to Revision G Page
• 已添加
引脚配置和功能
部分,
处理额定值
表,
特性 描述
部分,
器件功能模式
,
应用和实施
部分,
电源相关建议
部
分,
布局
部分,
器件和文档支持
部分以及
机械、封装和可订购信息
部分 ................................................................................ 1
• Added updated full Thermal Information ............................................................................................................................... 4
Changes from Revision E (May 2013) to Revision F Page
• Deleted TX interrupt ............................................................................................................................................................... 9
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