2
TCA9555
ZHCSJJ3E –JULY 2009–REVISED APRIL 2019
www.ti.com.cn
版权 © 2009–2019, 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 说说明明 （（续续））.............................................................. 3
6 Pin Configuration and Functions......................... 4
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 I
2
C Interface Timing Requirements.......................... 7
7.7 Switching Characteristics.......................................... 8
7.8 Typical Characteristics.............................................. 9
8 Parameter Measurement Information ................ 12
9 Detailed Description............................................ 15
9.1 Overview ................................................................. 15
9.2 Functional Block Diagram ....................................... 15
9.3 Feature Description................................................. 15
9.4 Device Functional Modes........................................ 16
9.5 Programming........................................................... 16
9.6 Register Maps......................................................... 24
10 Application and Implementation........................ 25
10.1 Application Information.......................................... 25
10.2 Typical Application ............................................... 25
11 Power Supply Recommendations ..................... 29
12 Layout................................................................... 31
12.1 Layout Guidelines ................................................. 31
12.2 Layout Example .................................................... 31
13 器器件件和和文文档档支支持持 ..................................................... 32
13.1 文档支持................................................................ 32
13.2 接收文档更新通知 ................................................. 32
13.3 社区资源................................................................ 32
13.4 商标 ....................................................................... 32
13.5 静电放电警告......................................................... 32
13.6 术语表 ................................................................... 32
14 机机械械、、封封装装和和可可订订购购信信息息....................................... 32
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 D (July 2016) to Revision E Page
• 更改了
器件信息
表 .................................................................................................................................................................. 1
• Changed the Pin Configuration images ................................................................................................................................. 4
Changes from Revision C (June 2016) to Revision D Page
• 已添加 向
器件信息
表中添加了 DB 封装................................................................................................................................. 1
Changes from Revision A (July 2009) to Revision B Page
• 已添加
添加了引脚配置和功能
部分、ESD
额定值
表、
特性 说明
部分、
器件功能模式
、
应用和实施
部分、
电源建议
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
Changes from Revision B (July 2015) to Revision C Page
• 已添加 向
器件信息
表中添加了 RGE 封装.............................................................................................................................. 1
• Changed V
IH
for I
2
C pins limited to V
CC
, with note allowing higher voltage .......................................................................... 5
• Added I
OL
for different T
j
........................................................................................................................................................ 5
• Removed ΔI
CC
spec from the Electrical Characteristics table, added ΔI
CC
typical characteristics graph .............................. 6
• Changed I
CC
standby into different input states...................................................................................................................... 7
• Changed C
io
maximum .......................................................................................................................................................... 7
• Changed Typical characteristic plots with updated data ........................................................................................................ 9
• POR requirements, bounded lowest voltage allowed during glitch ..................................................................................... 30
