SLVSGY2 October   2023 TPS2HCS10-Q1

ADVANCE INFORMATION  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
    1. 5.1 Recommended Connections for Unused Pins
  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 SPI Timing Requirements
    7. 6.7 Switching 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 Protection Mechanisms
        1. 8.3.1.1 Programmable Fuse Protection
        2. 8.3.1.2 Thermal Shutdown
        3. 8.3.1.3 Overcurrent Protection And Capacitive Load Charging
        4. 8.3.1.4 Reverse Battery
      2. 8.3.2 Diagnostic Mechanisms
        1. 8.3.2.1 VOUT Short-to-Battery and Open-Load
          1. 8.3.2.1.1 Detection With Channel Output (FET) Enabled
          2. 8.3.2.1.2 Detection With Channel Output Disabled
        2. 8.3.2.2 Digital Current Sense Output
          1. 8.3.2.2.1 RSNS Value and Accuracy / Resolution of Current Measurement
            1. 8.3.2.2.1.1 High Accuracy Load Current Sense
            2. 8.3.2.2.1.2 SNS Output Filter
        3. 8.3.2.3 Output Voltage and FET Temperature Sensing
    4. 8.4 Device Functional Modes
      1. 8.4.1 State Diagram
      2. 8.4.2 SLEEP
      3. 8.4.3 CONFIG/ACTIVE
      4. 8.4.4 Battery Supply Input (VBB) Under-voltage
      5. 8.4.5 LOW POWER MODE (LPM) State
      6. 8.4.6 LIMP HOME state
      7. 8.4.7 SPI Mode Operation
    5. 8.5 TPS2HC10S Registers
  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 Thermal Considerations
        2. 9.2.2.2 Configuring the Capacitive Charging Mode
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Mechanical, Packaging, and Orderable Information
    1. 11.1 Tape and Reel Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • PWP|16
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.1 Overview

The TPS2HCS10-Q1 device is a dual-channel smart high-side switch intended for use with 12-V automotive batteries. The TPS2HCS10-Q1 device integrates SPI control and configuration as well digital readout with an ADC of key device and load diagnostics. The device incorporates all of the specific features needed for a power distribution switch as well as the traditional protective and diganostic functions seen in high side switches for actuator drive applications.

Diagnostics features include a digital current, output voltage and FET temperature sense output that can be read over the SPI serial interface. The high-accuracy load current sense allows for diagnostics of complex loads. The output voltage sense and FET temperature sense fearures in the device enables diagnosis of the switch and load failures.

This device includes protection through thermal shutdown, overcurrent protection, transient withstand, and reverse battery operation. In addition, the device also includes an SPI-configurable wire-harness protection function through a defined fuse or tme-current curve. The protection works in conjunction with an immediate switch-off overcurrent protection with an SPI-configurable threshold to fully protect against overload and short circuit faults.

The TPS2HCS10-Q1device also integrates a low quiescent current mode where the device can provide currents in the 100s of mA range while consuming only micro-amps of current. The device automatically switches to the high-current mode on an increase in load current and provide a wake signal to the MCU. Further, the device includes a capacitive charging mode that reduces the peak current load on the supply. Together, the two features support power distribution switch to off-board ECU applications.

For more details on the diagnosis, power distribution and protection features, refer to the Feature Description and Application Information sections of the document.

The TPS2HCS10-Q1 is one device in a family of TI high side switches. For each device, the part number indicates elements of the device behavior. Figure 8-1 gives an example of the device nomenclature.

GUID-20230323-SS0I-JSDK-HCWM-WZK8CZGH9TD5-low.svg Figure 8-1 Naming Convention