ZHCSGR0A
February 2015 – August 2017
TPS2388
PRODUCTION DATA.
1
特性
2
应用
3
说明
4
修订历史记录
5
Pin Configuration and Functions
5.1
Detailed Pin Description
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Timing Requirements
6.7
Switching Characteristics
6.8
Typical Characteristics
7
Parameter Measurement Information
7.1
Timing Diagrams
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Port Remapping
8.3.2
Port Power Priority
8.3.3
A/D Converter
8.3.4
I2C Watchdog
8.3.5
Foldback Protection
8.4
Device Functional Modes
8.4.1
Port Operating Modes
8.4.1.1
Semiauto
8.4.1.2
Manual
8.4.1.3
Power Off
8.4.2
Detection
8.4.3
Classification
8.4.4
DC Disconnect
8.5
Programming
8.5.1
I2C Serial Interface
8.6
Register Maps
8.6.1
Complete Register Set
8.6.2
INTERRUPT Register
8.6.3
INTERRUPT MASK Register
8.6.4
POWER EVENT Register
8.6.5
DETECTION EVENT Register
8.6.6
FAULT EVENT Register
8.6.7
START/ILIM EVENT Register
8.6.8
SUPPLY EVENT Register
8.6.9
PORT 1 STATUS Register
8.6.10
PORT 2 STATUS Register
8.6.11
PORT 3 STATUS Register
8.6.12
PORT 4 STATUS Register
8.6.13
POWER STATUS Register
8.6.14
Pin Status Register
8.6.15
OPERATING MODE Register
8.6.16
DISCONNECT ENABLE Register
8.6.17
DETECT/CLASS ENABLE Register
8.6.18
Port Power Priority/ICUT Disable Register Name
8.6.19
TIMING CONFIGURATION Register
8.6.20
GENERAL MASK Register
8.6.21
DETECT/CLASS RESTART Register
8.6.22
POWER ENABLE Register
8.6.23
RESET Register
8.6.24
ID Register
8.6.25
Police 21 Configuration Register
8.6.26
Police 43 Configuration Register
8.6.27
IEEE Power Enable Register
8.6.28
Power-on Fault Register
8.6.29
PORT RE-MAPPING Register
8.6.30
Port 21 Multi Bit Priority Register
8.6.31
Port 43 Multi Bit Priority Register
8.6.32
TEMPERATURE Register
8.6.33
INPUT VOLTAGE Register
8.6.34
PORT 1 CURRENT Register
8.6.35
PORT 2 CURRENT Register
8.6.36
PORT 3 CURRENT Register
8.6.37
PORT 4 CURRENT Register
8.6.38
PORT 1 VOLTAGE Register
8.6.39
PORT 2 VOLTAGE Register
8.6.40
PORT 3 VOLTAGE Register
8.6.41
PORT 4 VOLTAGE Register
8.6.42
PoE Plus Register
8.6.43
FIRMWARE REVISION
8.6.44
I2C WATCHDOG Register
8.6.45
DEVICE ID Register
8.6.46
PORT 1 DETECT RESISTANCE Register
8.6.47
PORT 2 DETECT RESISTANCE Register
8.6.48
PORT 3 DETECT RESISTANCE Register
8.6.49
PORT 4 DETECT RESISTANCE Register
9
Application and Implementation
9.1
Application Information
9.1.1
Introduction to PoE
9.1.2
TPS2388 Application
9.1.3
Kelvin Current Sensing Resistor
9.1.4
Connections on Unused Ports
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Power Pin Bypass Capacitors
9.2.2.2
Per Port Components
9.2.2.3
System Level Components (not shown in the schematic diagrams)
9.2.3
Application Curves
10
Power Supply Recommendations
10.1
VDD
10.2
VPWR
11
Layout
11.1
Layout Guidelines
11.1.1
Port Current Kelvin Sensing
11.2
Layout Example
11.2.1
Component Placement and Routing Guidelines
11.2.1.1
Power Pin Bypass Capacitors
11.2.1.2
Per-Port Components
12
器件和文档支持
12.1
接收文档更新通知
12.2
社区资源
12.3
商标
12.4
静电放电警告
12.5
Glossary
13
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
RTQ|56
MPQF168D
散热焊盘机械数据 (封装 | 引脚)
RTQ|56
QFND490A
订购信息
zhcsgr0a_oa
zhcsgr0a_pm
4
修订历史记录
日期
修订版本
说明
2017 年 8 月
*
首次公开发布的产品说明书。