SLVSI27 December   2025 TPS1HC08-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 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 SNS Timing Characteristics
    7. 6.7 Switching Characteristics
    8. 6.8 Typical Characteristics
  8. 7 Parameter Measurement Information
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Input Voltage Thresholds
      2. 8.3.2  Accurate Current Sense
        1. 8.3.2.1 SNS Response Time
        2. 8.3.2.2 SNS Output Filter
        3. 8.3.2.3 Multiplexing of Current Sense Across Devices
      3. 8.3.3  Overcurrent Protection
        1. 8.3.3.1 Adjustable Current Limit
          1. 8.3.3.1.1 Current Limiting With Thermal Regulation
          2. 8.3.3.1.2 Current Limiting With No Thermal Regulation
          3. 8.3.3.1.3 Current Limit Foldback
          4. 8.3.3.1.4 Current Limit Accuracy
        2. 8.3.3.2 Thermal Shutdown
          1. 8.3.3.2.1 Relative Thermal Shutdown
          2. 8.3.3.2.2 Absolute Thermal Shutdown
      4. 8.3.4  Retry Protection Mechanism From Thermal Shutdown
      5. 8.3.5  Inductive-Load Switching-Off Clamp
      6. 8.3.6  Slower Slew Rate Option
      7. 8.3.7  Capacitive Load Charging
        1. 8.3.7.1 Adjustable Current Limiting for Inrush Control
        2. 8.3.7.2 Current Limit with Thermal Regulation for Capacitive Loads
        3. 8.3.7.3 Retry Thermal Shutdown Behavior for Capacitive Loads
        4. 8.3.7.4 Impact of DC Load on Capacitive Charging Capability
        5. 8.3.7.5 Device Capability
      8. 8.3.8  Bulb Charging
        1. 8.3.8.1 Non-Thermal Regulated Mode for Bulb Loads
        2. 8.3.8.2 Thermal Management During Bulb Inrush
        3. 8.3.8.3 Device Capability
      9. 8.3.9  Fault Detection and Reporting
        1. 8.3.9.1 Diagnostic Enable Function
        2. 8.3.9.2 FLT Reporting
        3. 8.3.9.3 FLT Timings
        4. 8.3.9.4 Fault Table
      10. 8.3.10 Full Diagnostics
        1. 8.3.10.1 Open-Load Detection
          1. 8.3.10.1.1 Channel On
          2. 8.3.10.1.2 Channel Off
        2. 8.3.10.2 Short-to-Battery Detection
        3. 8.3.10.3 Reverse-Polarity and Battery Protection
      11. 8.3.11 Full Protections
        1. 8.3.11.1 UVLO Protection
        2. 8.3.11.2 Loss of GND Protection
        3. 8.3.11.3 Loss of Power Supply Protection
        4. 8.3.11.4 Reverse Current Protection
        5. 8.3.11.5 Protection for MCU I/Os
    4. 8.4 Device Functional Modes
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 EMC Transient Disturbances Test
      3. 9.2.3 Transient Thermal Performance
      4. 9.2.4 Application Curves
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Examples
        1. 9.4.2.1 Without a GND Network
        2. 9.4.2.2 With a GND Network
      3. 9.4.3 Wettable Flank Package
  11. 10Revision History
  12. 11Device and Documentation Support
    1. 11.1 Third-Party Products Disclaimer
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  13. 12Mechanical, Packaging, and Orderable Information

5 Pin Configuration and Functions

TPS1HC08-Q1 VAH PackageTPS1HC08-Q1 Top View
NC – No internal connection
Figure 5-1 VAH PackageTPS1HC08-Q1 Top View
Table 5-1 Pin Functions over operating free-air temperature range (unless otherwise noted)
PIN TYPE DESCRIPTION
NO. NAME
1 VOUT Power Output of high side switch, connect to load
2 VBB Power Power supply
3 ILIM Input Adjustable current limit. Connect a resistor from the pin to GND to set the current limit.
4 GND Power Ground of device. Connect to resistor-diode ground network to have reverse battery protection
5 NC N/A No internal connection
6 DIAG_EN Input Enable-disable pin for diagnostics, internal pulldown
7 EN Input Input control for channel activation, internal pulldown
8 NC N/A No internal connection
9 SNS Output Analog current sense output corresponding to load current. Connect RSNS to ground to convert to a voltage. Also shows fault status by going high
10 FLT Output Open drain global fault output. Referred to FAULT, FLT, or fault pin
11 VOUT Power Output of high side switch, connect to load