SLUSCP2
September 2016
TPS2549
PRODUCTION DATA.
1
Features
2
Applications
3
Description
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
Switching Characteristics
6.7
Typical Characteristics
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
FAULT Response
8.3.2
Cable Compensation
8.3.2.1
Design Procedure
8.3.3
D+ and D- Protection
8.3.4
Output and D+ or D- Discharge
8.3.5
Port Power Management (PPM)
8.3.5.1
Benefits of PPM
8.3.5.2
PPM Details
8.3.5.3
Implementing PPM in a System With Two Charging Ports (CDP and SDP1)
8.3.5.4
Implementing PPM in a System With Two Charging Ports (DCP and DCP1)
8.3.6
CDP and SDP Auto Switch
8.3.7
Overcurrent Protection
8.3.8
Undervoltage Lockout
8.3.9
Thermal Sensing
8.3.10
Current Limit Setting
8.4
Device Functional Modes
8.4.1
Device Truth Table (TT)
8.4.2
USB Specification Overview
8.4.3
Standard Downstream Port (SDP) Mode — USB 2.0 and USB 3.0
8.4.4
Charging Downstream Port (CDP) Mode
8.4.5
Dedicated Charging Port (DCP) Mode
8.4.5.1
DCP BC1.2 and YD/T 1591-2009
8.4.5.2
DCP Divider-Charging Scheme
8.4.5.3
DCP 1.2-V Charging Scheme
8.4.6
DCP Auto Mode
8.4.7
Client Mode
8.4.8
High-Bandwidth Data-Line Switches
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Input and Output Capacitance
9.2.2.2
Cable Compensation Calculation
9.2.2.3
Power Dissipation and Junction Temperature
9.2.3
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Documentation Support
12.1.1
Related Documentation
12.2
Receiving Notification of Documentation Updates
12.3
Community Resources
12.4
Trademarks
12.5
Electrostatic Discharge Caution
12.6
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RTE|16
MPQF149D
Thermal pad, mechanical data (Package|Pins)
RTE|16
QFND525B
Orderable Information
sluscp2_oa
sluscp2_pm
7 Parameter Measurement Information
Figure 32. OUT Rise-Fall Test Load Figure
Figure 34. OUT Discharge During Mode Change
Figure 36. Output Short-Circuit Parameters
Figure 33. Power-On and -Off Timing
Figure 35. Enable Timing, Active-High Enable