SLVSDT3D
January 2018 – December 2019
TPS25221
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Simplified Schematic
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
Pin Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Typical Characteristics
8
Parameter Measurement Information
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Over-current Conditions
9.3.2
Fault Response
9.3.3
Undervoltage Lockout (UVLO)
9.3.4
Enable, (EN)
9.3.5
Thermal Sense
9.4
Device Functional Modes
9.5
Programming
9.5.1
Programming the Current-Limit Threshold
10
Application and Implementation
10.1
Application Information
10.1.1
Constant-Current
10.2
Typical Applications
10.2.1
Two-Level Current-Limit Circuit
10.2.1.1
Design Requirements
10.2.1.2
Detailed Design Procedures
10.2.1.2.1
Designing Above a Minimum Current Limit
10.2.1.2.2
Designing Below a Maximum Current Limit
10.2.1.2.3
Accounting for Resistor Tolerance
10.2.1.2.4
Input and Output Capacitance
10.2.1.3
Application Curve
10.2.2
Auto-Retry Functionality
10.2.2.1
Design Requirements (added)
10.2.2.2
Detailed Design Procedure
10.2.3
Typical Application as USB Power Switch
10.2.3.1
Design Requirements
10.2.3.1.1
USB Power-Distribution Requirements
10.2.3.2
Detailed Design Procedure
10.2.3.2.1
Universal Serial Bus (USB) Power-Distribution Requirements
11
Power Supply Recommendations
11.1
Self-Powered and Bus-Powered Hubs
11.2
Low-Power Bus-Powered and High-Power Bus-Powered Functions
11.3
Power Dissipation and Junction Temperature
12
Layout
12.1
Layout Guidelines
12.2
Layout Example
13
Device and Documentation Support
13.1
Device Support
13.1.1
Third-Party Products Disclaimer
13.2
Documentation Support
13.2.1
Related Documentation
13.3
Receiving Notification of Documentation Updates
13.4
Community Resources
13.5
Trademarks
13.6
Electrostatic Discharge Caution
13.7
Glossary
14
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DRV|6
MPDS216E
DBV|6
MPDS026P
Thermal pad, mechanical data (Package|Pins)
DRV|6
QFND087M
Orderable Information
slvsdt3d_oa
slvsdt3d_pm
Device Images
Simplified Schematic