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  • TPS2HB16-Q1 40-V, 16-mΩ Dual-Channel Smart High-Side Switch

    • SLVSDV7C February   2018  – February 2020 TPS2HB16-Q1

      PRODUCTION DATA.  

  • CONTENTS
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  • TPS2HB16-Q1 40-V, 16-mΩ Dual-Channel Smart High-Side Switch
  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Simplified Schematic
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
    2. 6.1 Recommended Connections for Unused Pins
  7. 7 Specifications
    1. Table 3. Absolute Maximum Ratings
    2. Table 4. ESD Ratings
    3. Table 5. Recommended Operating Conditions
    4. Table 6. Thermal Information
    5. Table 7. Electrical Characteristics
    6. Table 8. SNS Timing Characteristics
    7. Table 9. Switching Characteristics
    8. 7.1      Typical Characteristics
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Protection Mechanisms
        1. 9.3.1.1 Thermal Shutdown
        2. 9.3.1.2 Current Limit
          1. 9.3.1.2.1 Current Limit Foldback
          2. 9.3.1.2.2 Programmable Current Limit
          3. 9.3.1.2.3 Undervoltage Lockout (UVLO)
          4. 9.3.1.2.4 VBB During Short-to-Ground
        3. 9.3.1.3 Voltage Transients
          1. 9.3.1.3.1 Load Dump
        4. 9.3.1.4 Driving Inductive Loads
        5. 9.3.1.5 Reverse Battery
        6. 9.3.1.6 Fault Event – Timing Diagrams (Version A/B)
      2. 9.3.2 Fault Event – Timing Diagrams - Version F
      3. 9.3.3 Diagnostic Mechanisms
        1. 9.3.3.1 VOUTx Short-to-Battery and Open-Load
          1. 9.3.3.1.1 Detection With Switch Enabled
          2. 9.3.3.1.2 Detection With Switch Disabled
        2. 9.3.3.2 SNS Output
          1. 9.3.3.2.1 RSNS Value
            1. 9.3.3.2.1.1 High Accuracy Load Current Sense
            2. 9.3.3.2.1.2 SNS Output Filter
        3. 9.3.3.3 Fault Indication and SNS Mux
        4. 9.3.3.4 Resistor Sharing
        5. 9.3.3.5 High-Frequency, Low Duty-Cycle Current Sensing
    4. 9.4 Device Functional Modes
      1. 9.4.1 Off
      2. 9.4.2 Standby
      3. 9.4.3 Diagnostic
      4. 9.4.4 Standby Delay
      5. 9.4.5 Active
      6. 9.4.6 Fault
  10. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 Ground Protection Network
      2. 10.1.2 Interface With Microcontroller
      3. 10.1.3 I/O Protection
      4. 10.1.4 Inverse Current
      5. 10.1.5 Loss of GND
      6. 10.1.6 Automotive Standards
        1. 10.1.6.1 ISO7637-2
        2. 10.1.6.2 AEC – Q100-012 Short Circuit Reliability
      7. 10.1.7 Thermal Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
      3. 10.2.3 Application Curves
      4. 10.2.4 Design Requirements
      5. 10.2.5 Detailed Design Procedure
      6. 10.2.6 Application Curves
    3. 10.3 Typical Application
      1. 10.3.1 Design Requirements
      2. 10.3.2 Detailed Design Procedure
        1. 10.3.2.1 Thermal Considerations
        2. 10.3.2.2 RILIM Calculation
        3. 10.3.2.3 Diagnostics
          1. 10.3.2.3.1 Selecting the RSNS Value
      3. 10.3.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Documentation Support
      1. 13.1.1 Related Documentation
    2. 13.2 Receiving Notification of Documentation Updates
    3. 13.3 Support Resources
    4. 13.4 Trademarks
    5. 13.5 Electrostatic Discharge Caution
    6. 13.6 Glossary
  14. 14Mechanical, Packaging, and Orderable Information
  15. IMPORTANT NOTICE
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DATA SHEET

TPS2HB16-Q1 40-V, 16-mΩ Dual-Channel Smart High-Side Switch

1 Features

  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: TA = –40°C to
      125°C ambient operating temperature range
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B
    • Withstands 40-V load dump
  • Dual-channel smart high-side switch with 16-mΩ RON (TJ = 25°C)
  • Improve system level reliability through adjustable current limiting
    • Current limit adjustable from 4.1 A to 48.5 A and internally fixed at 60 A
  • Robust integrated output protection:
    • Integrated thermal protection
    • Protection against short to ground/battery
    • Protection against reverse battery events including automatic switch on with reverse voltage
    • Automatic shut off if loss of battery/ground occurs
    • Integrated output clamp to demagnetize inductive loads
    • Configurable fault handling
  • Analog sense output can be configured to accurately measure:
    • Load current
    • Device temperature
  • Provides fault indication through SNS pin
    • Detection of open load and short-to-battery

2 Applications

  • Automotive display module
  • ADAS modules
  • Seat comfort module
    • Transmission control unit
    • HVAC control module
    • Body control modules
    • LED lighting
    • 2x27W Bulbs

    3 Description

    The TPS2HB16-Q1 device is a dual-channel smart high-side switch intended for use in 12-V automotive systems. The device integrates robust protection and diagnostic features to ensure output port protection even during harmful events like short circuits in automotive systems. The device protects against faults through a reliable current limit, which, depending on device variant, is adjustable from 4.1 A to 48.5 A. The TPS2HB16F-Q1 device is designed to be able to drive 2x35W, 2x27W, and 2x21W bulbs due to its high fixed current limit of 60A.

    The high current limit range allows for usage in loads that require large transient currents, while the low current limit range provides improved protection for loads that do not require high peak current. The device is capable of reliably driving various load profiles.

    The TPS2HB16-Q1 also provides a high accuracy analog current sense that allows for improved load diagnostics. By reporting load current and device temperature to a system MCU, the device enables predictive maintenance and load diagnostics that improves the system lifetime.

    The TPS2HB16-Q1 is available in a HTSSOP package which allows for reduced PCB footprint.

    Device Information(1)

    PART NUMBER PACKAGE BODY SIZE (NOM)
    TPS2HB16-Q1 HTSSOP (16) 5.00 mm × 4.40 mm
    1. For all available packages, see the orderable addendum at the end of the data sheet.

    Simplified Schematic

    TPS2HB16-Q1 typical_app_schem1_SLVSDZ3.gif

    4 Revision History

    Changes from B Revision (November 2019) to C Revision

    • Added Device Version F Go

    Changes from A Revision (April 2019) to B Revision

    • Changed from Advance Information to Production DataGo

     
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