SLVS782D November   2007  – October 2020 TPS2041B-Q1 , TPS2042B-Q1 , TPS2051B-Q1

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagrams
    3. 8.3 Feature Description
      1. 8.3.1 Power Switch
      2. 8.3.2 Charge Pump
      3. 8.3.3 Driver
      4. 8.3.4 Enable ( ENx)
      5. 8.3.5 Enable (EN)
      6. 8.3.6 Overcurrent ( OCx)
      7. 8.3.7 Current Sense
      8. 8.3.8 Thermal Sense
      9. 8.3.9 Undervoltage Lockout (UVLO)
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Universal Serial Bus (USB) Applications
    2. 9.2 Typical Applications
      1. 9.2.1 TPS2042B-Q1 Typical Application
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Overcurrent
          2. 9.2.1.2.2 OC Response
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Hosts and Self-Powered Hubs and Bus-Powered Hubs
        1. 9.2.2.1 Design Requirements
          1. 9.2.2.1.1 USB Power-Distribution Requirements
        2. 9.2.2.2 Detailed Design Procedure
          1. 9.2.2.2.1 Low-Power Bus-Powered and High-Power Bus-Powered Functions
      3. 9.2.3 Generic Hot-Plug Applications
        1. 9.2.3.1 Design Requirements
        2. 9.2.3.2 Detailed Design Procedure
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Thermal Considerations
  12. 12Device and Documentation Support
    1. 12.1 Related Links
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

5 Pin Configuration and Functions

GUID-139B3C53-38D3-46A1-B984-F6C834F7742C-low.svgFigure 5-1 TPS2041B-Q1 DBV Package5-Pin SOT-23Top View
GUID-B641A5D7-9BAD-4D01-A00E-23FA4FDD529C-low.svgFigure 5-3 TPS2051B-Q1 D Package8-Pin SOICTop View
GUID-619B3D80-F5AF-40CF-9E9D-BF418ECF72F8-low.svgFigure 5-2 TPS2042B-Q1 D Package8-Pin SOICTop View
Table 5-1 Pin Functions: TPS2041B-Q1
PIN TYPE DESCRIPTION
NAME NO.
EN 4 I Enable input, logic low turns on power switch
GND 2 GND Ground
IN 5 PWR Supply input voltage
OC 3 O Overcurrent, open-drain output, active low
OUT 1 O Power-switch output
Table 5-2 Pin Functions: TPS2042B-Q1
PIN TYPE DESCRIPTION
NAME NO.
EN1 3 I Enable input, logic low turns on power switch IN-OUT1
EN2 4 I Enable input, logic low turns on power switch IN-OUT2
GND 1 GND Ground
IN 2 PWR Supply input voltage
OC1 8 O Overcurrent, open-drain output, active low, IN-OUT1
OC2 5 O Overcurrent, open-drain output, active low, IN-OUT2
OUT1 7 O Power-switch output, IN-OUT1
OUT2 6 O Power-switch output, IN-OUT2
Table 5-3 Pin Functions: TPS2051B-Q1
PIN TYPE DESCRIPTION
NAME NO.
EN 4 I Enable input, logic high turns on power switch
GND 1 GND Ground
IN 2, 3 PWR Supply input voltage
OC 5 O Overcurrent open-drain output, active low
OUT 6, 7, 8 O Power-switch output