JAJSHI6G
June 2018 – July 2021
TPS25830-Q1
,
TPS25831-Q1
PRODUCTION DATA
1
特長
2
アプリケーション
3
概要
4
Revision History
5
概要 (続き)
6
Device Comparison Table
7
Pin Configuration and Functions
8
Specifications
8.1
Absolute Maximum Ratings
8.2
ESD Ratings
8.3
Recommended Operating Conditions
8.4
Thermal Information
8.5
Electrical Characteristics
8.6
Timing Requirements
8.7
Switching Characteristics
8.8
Typical Characteristics
9
Parameter Measurement Information
10
Detailed Description
10.1
Overview
10.2
Functional Block Diagram
10.3
Feature Description
10.3.1
Buck Regulator
10.3.2
Enable/UVLO and Start-up
10.3.3
Switching Frequency and Synchronization (RT/SYNC)
10.3.4
Spread-Spectrum Operation
10.3.5
VCC, VCC_UVLO
10.3.6
Minimum ON-time, Minimum OFF-time
10.3.7
Internal Compensation
10.3.8
Bootstrap Voltage (BOOT)
10.3.9
RSNS, RSET, RILIMIT and RIMON
10.3.10
Overcurrent and Short Circuit Protection
10.3.10.1
Current Limit Setting using RILIMIT
10.3.10.2
Buck Average Current Limit Design Example
10.3.10.3
External MOSFET Gate Drivers
10.3.10.4
Cycle-by-Cycle Buck Current Limit
10.3.11
Overvoltage, IEC and Short to Battery Protection
10.3.11.1
VBUS and VCSN/OUT Overvoltage Protection
10.3.11.2
DP_IN and DM_IN Protection
10.3.11.3
CC IEC and OVP Protection
10.3.12
Cable Compensation
10.3.12.1
Cable Compensation Design Example
10.3.13
USB Port Control
10.3.14
FAULT Response
10.3.15
USB Specification Overview
10.3.16
USB Type-C® Basics
10.3.16.1
Configuration Channel
10.3.16.2
Detecting a Connection
10.3.16.3
Configuration Channel Pins CC1 and CC2
10.3.16.4
Current Capability Advertisement and VCONN Overload Protection
10.3.16.5
Plug Polarity Detection
10.3.17
Device Power Pins (IN, CSN/OUT, and PGND)
10.3.18
Thermal Shutdown
10.3.19
Power Wake
10.3.20
Thermal Sensing with NTC (TPS25831-Q1)
10.4
Device Functional Modes
10.4.1
Shutdown Mode
10.4.2
Standby Mode
10.4.3
Active Mode
10.4.4
Device Truth Table (TT)
10.4.5
USB Port Operating Modes
10.4.5.1
USB Type-C Mode
10.4.5.2
Standard Downstream Port (SDP) Mode — USB 2.0, USB 3.0, and USB 3.1
10.4.5.3
Charging Downstream Port (CDP) Mode
10.4.5.4
Dedicated Charging Port (DCP) Mode (TPS25831-Q1 Only)
10.4.5.4.1
DCP BC1.2 and YD/T 1591-2009
10.4.5.4.2
DCP Divider-Charging Scheme
10.4.5.4.3
DCP 1.2-V Charging Scheme
10.4.5.5
DCP Auto Mode (TPS25831-Q1 Only)
10.4.6
High-Bandwidth Data-Line Switches (TPS25830-Q1 only)
11
Application and Implementation
11.1
Application Information
11.2
Typical Application
11.2.1
Design Requirements
11.2.2
Detailed Design Procedure
11.2.2.1
Output Voltage
11.2.2.2
Switching Frequency
11.2.2.3
Inductor Selection
11.2.2.4
Output Capacitor Selection
11.2.2.5
Input Capacitor Selection
11.2.2.6
Bootstrap Capacitor Selection
11.2.2.7
VCC Capacitor Selection
11.2.2.8
Enable and Undervoltage Lockout Set-Point
11.2.2.9
Current Limit Set-Point
11.2.2.10
Cable Compensation Set-Point
11.2.2.11
LD_DET, POL, and FAULT Resistor Selection
11.2.3
Application Curves
12
Power Supply Recommendations
13
Layout
13.1
Layout Guidelines
13.2
Ground Plane and Thermal Considerations
13.3
Layout Example
14
Device and Documentation Support
14.1
Related Links
14.2
Receiving Notification of Documentation Updates
14.3
サポート・リソース
14.4
Trademarks
14.5
Electrostatic Discharge Caution
14.6
Glossary
15
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)
RHB|32
MPQF130D
サーマルパッド・メカニカル・データ
RHB|32
QFND592
発注情報
jajshi6g_oa
jajshi6g_pm
13.3
Layout Example
Figure 13-1
Layout