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TPS20xxB-Q1 Current-Limited Power-Distribution Switches
SLVS782D
November 2007 – October 2020
TPS2041B-Q1
,
TPS2042B-Q1
,
TPS2051B-Q1
PRODUCTION DATA
CONTENTS
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TPS20xxB-Q1 Current-Limited Power-Distribution Switches
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
Typical Characteristics
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagrams
8.3
Feature Description
8.3.1
Power Switch
8.3.2
Charge Pump
8.3.3
Driver
8.3.4
Enable ( ENx)
8.3.5
Enable (EN)
8.3.6
Overcurrent ( OCx)
8.3.7
Current Sense
8.3.8
Thermal Sense
8.3.9
Undervoltage Lockout (UVLO)
8.4
Device Functional Modes
9
Application and Implementation
9.1
Application Information
9.1.1
Universal Serial Bus (USB) Applications
9.2
Typical Applications
9.2.1
TPS2042B-Q1 Typical Application
9.2.1.1
Design Requirements
9.2.1.2
Detailed Design Procedure
9.2.1.2.1
Overcurrent
9.2.1.2.2
OC Response
9.2.1.3
Application Curves
9.2.2
Hosts and Self-Powered Hubs and Bus-Powered Hubs
9.2.2.1
Design Requirements
9.2.2.1.1
USB Power-Distribution Requirements
9.2.2.2
Detailed Design Procedure
9.2.2.2.1
Low-Power Bus-Powered and High-Power Bus-Powered Functions
9.2.3
Generic Hot-Plug Applications
9.2.3.1
Design Requirements
9.2.3.2
Detailed Design Procedure
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
11.3
Thermal Considerations
12
Device and Documentation Support
12.1
Related Links
12.2
Receiving Notification of Documentation Updates
12.3
Support Resources
12.4
Trademarks
12.5
Electrostatic Discharge Caution
12.6
Glossary
13
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
D|8
MSOI002K
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slvs782d_oa
slvs782d_pm
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DATA SHEET
TPS20xxB-Q1 Current-Limited Power-Distribution Switches
1
Features
Qualified for automotive applications
AEC-Q100 qualified with the following results:
Device temperature grade 1: –40°C to 125°C ambient operating temperature range
Device HBM ESD classification level 2
Device CDM ESD classification level C6
Device MM ESD classification level M0
105-mΩ high-side MOSFET
500-mA continuous current
Thermal and short-circuit protection
Accurate current limit: 0.75 A (minimum), 1.25 A (maximum)
Operating range: 2.7 V to 5.5 V
0.6-ms typical rise time
Undervoltage lockout
Deglitched fault report (
OC
)
No
OC
glitch during power up
Maximum standby supply current: 1 µA (single, dual) or 2 µA (triple, quad)
Bidirectional switch
UL recognized under file number E169910
2
Applications
Heavy Capacitive Loads
Short-Circuit Protection
