SLVSC97B
March 2014 – September 2020
TPS2556-Q1
,
TPS2557-Q1
PRODUCTION DATA
1
Features
2
Application
3
Description
4
Revision History
5
Device Comparison Table
6
Terminal Configuration and Functions
Terminal Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
Handling Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Switching Characteristics
7.7
Typical Characteristics
16
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
FAULT Response
8.3.3
Thermal Sense
8.4
Device Functional Modes
8.4.1
Undervoltage Lockout (UVLO)
8.4.2
Enable ( EN OR EN)
8.4.3
Auto-Retry Functionality
8.4.4
Two-Level Current-Limit Circuit
9
Applications and Implementation
9.1
Application Information
9.2
Typical Application, Design for Current Limit
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Determine Design Parameters
9.2.2.2
Programming the Current-Limit Threshold
9.2.2.3
Selecting Current-Limit Resistor 1
9.2.2.4
Selecting Current-Limit Resistor 2
9.2.2.5
Accounting for Resistor Tolerance
9.2.2.6
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
Related Links
12.2
Trademarks
12.3
Electrostatic Discharge Caution
12.4
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DRB|8
MPDS118K
Thermal pad, mechanical data (Package|Pins)
DRB|8
QFND043N
Orderable Information
slvsc97b_oa
slvsc97b_pm
12.4
Glossary
TI Glossary
This glossary lists and explains terms, acronyms, and definitions.