SLVSBD0B
November 2012 – June 2020
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Typical Application as USB Power Switch
4
Revision History
5
Pin Configuration and Functions
Pin 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
Typical Characteristics
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Overcurrent Conditions
8.3.2
Reverse-Voltage Protection
8.3.3
FAULT Response
8.3.4
Undervoltage Lockout (UVLO)
8.3.5
Enable (EN)
8.3.6
Thermal Sense
8.4
Device Functional Modes
8.5
Programming
8.5.1
Programming the Current-Limit Threshold
9
Application and Implementation
9.1
Application Information
9.1.1
Constant-Current and Impact on Output Voltage
9.1.2
Accounting for Resistor Tolerance
9.1.3
Input and Output Capacitance
9.2
Typical Applications
9.2.1
Application 1: Designing Above a Minimum Current-Limit
9.2.1.1
Design Requirements
9.2.1.2
Detailed Design Procedure
9.2.1.3
Application Curves
9.2.2
Application 2: Designing Below a Maximum Current-Limit
9.2.2.1
Design Requirements
9.2.2.2
Detailed Design Procedure
9.2.3
Application 3: Auto-Retry Functionality
9.2.3.1
Design Requirements
9.2.3.2
Detailed Design Procedure
9.2.4
Application 4: Two-Level Current-Limit Circuit
9.2.4.1
Design Requirements
9.2.4.2
Detailed Design Procedure
9.2.5
Application 5: Typical Application as USB Power Switch
9.2.5.1
Design Requirements
9.2.5.2
Detailed Design Procedure
9.2.5.2.1
Universal Serial Bus (USB) Power-Distribution Requirements
10
Power Supply Recommendations
10.1
USB Self-Powered (SPH) and Bus-Powered (BPH) Hubs
10.2
USB Low-Power Bus-Powered and High-Power Bus-Powered Functions
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
11.3
Power Dissipation and Junction Temperature
12
Device and Documentation Support
12.1
Device Support
12.2
Support Resource
12.3
Trademarks
12.4
Electrostatic Discharge Caution
12.5
Glossary
13
Mechanical, Packaging, and Orderable Information
7
Parameter Measurement Information
Figure 19.
Test Circuit and Voltage Waveforms
Figure 20.
Response Time to Short Circuit Waveform
Figure 21.
Output Voltage vs Current-Limit Threshold