JAJSIP2B
November 2018 – December 2020
TPS55288
PRODUCTION DATA
1
特長
2
アプリケーション
3
概要
4
Revision History
5
Pin Configuration and Functions
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
I2C Timing Characteristics
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
VCC Power Supply
7.3.2
Operation Mode Setting
7.3.3
Input Undervoltage Lockout
7.3.4
Enable and Programmable UVLO
7.3.5
Soft Start
7.3.6
Shutdown and Load Discharge
7.3.7
Switching Frequency
7.3.8
Switching Frequency Dithering
7.3.9
Inductor Current Limit
7.3.10
Internal Charge Path
7.3.11
Output Voltage Setting
7.3.12
Output Current Monitoring and Cable Voltage Droop Compensation
7.3.13
Integrated Gate Drivers
7.3.14
Output Current Limit
7.3.15
Overvoltage Protection
7.3.16
Output Short Circuit Protection
7.3.17
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
PWM Mode
7.4.2
Power Save Mode
7.5
I2C Serial Interface
7.5.1
Data Validity
7.5.2
START and STOP Conditions
7.5.3
Byte Format
7.5.4
Acknowledge (ACK) and Not Acknowledge (NACK)
7.5.5
Slave Address and Data Direction Bit
7.5.6
Single Read and Write
7.5.7
Multi-Read and Multi-Write
7.6
Register Maps
7.6.1
REF Register (Address = 0h, 1h) [reset = 11010010h, 00000000h]
7.6.2
IOUT_LIMIT Register (Address = 2h) [reset = 11100100h]
7.6.3
VOUT_SR Register (Address = 3h) [reset = 00000001h]
7.6.4
VOUT_FS Register (Address = 4h) [reset = 00000011h]
7.6.5
CDC Register (Address = 5h) [reset = 11100000h]
7.6.6
MODE Register (Address = 6h) [reset = 00100000h]
7.6.7
STATUS Register (Address = 7h) [reset = 00000011h]
7.6.8
Register Summary
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
USB PD Power Supply Detailed Design Procedure
8.2.2.1
Switching Frequency
8.2.2.2
Output Voltage Setting
8.2.2.3
Inductor Selection
8.2.2.4
Input Capacitor
8.2.2.5
Output Capacitor
8.2.2.6
Output Current Limit
8.2.2.7
Loop Stability
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Device Support
11.1.1
サード・パーティ製品に関する免責事項
11.2
ドキュメントの更新通知を受け取る方法
11.3
サポート・リソース
11.4
Trademarks
11.5
静電気放電に関する注意事項
11.6
用語集
12
Mechanical, Packaging, and Orderable Information
パッケージ・オプション
メカニカル・データ(パッケージ|ピン)
RPM|26
MPQF533A
サーマルパッド・メカニカル・データ
RPM|26
QFND631
発注情報
jajsip2b_oa
jajsip2b_pm
8.2.2
USB PD Power Supply Detailed Design Procedure