SLLSFT1 October   2026 TIOM2212

ADVANCE INFORMATION  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Switching Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  L+ Supply Controller
        1. 7.3.1.1 Auto-retry feature
        2. 7.3.1.2 Current sense feature
      2. 7.3.2  C/Q Transceiver
        1. 7.3.2.1 CQ Driver Fault Detection
        2. 7.3.2.2 CQ Reverse Polarity Protection
        3. 7.3.2.3 CQ Current Source or Sink
        4. 7.3.2.4 CQ Receiver Output
        5. 7.3.2.5 CQ Receiver Threshold
        6. 7.3.2.6 CQ/RX Receiver Glitch Filter
      3. 7.3.3  High-side Switch (HSS) Gate Driver
      4. 7.3.4  DI Receiver
      5. 7.3.5  Reverse Polarity Protection
      6. 7.3.6  Thermal Warning and Shutdown
      7. 7.3.7  Clocking
      8. 7.3.8  Power Up Sequence (TIOM2212)
      9. 7.3.9  Device Functional Modes
        1. 7.3.9.1 IO-Link PHY Mode
          1. 7.3.9.1.1 Integrated Automated Sequences
        2. 7.3.9.2 UART Mode
        3. 7.3.9.3 Frame Handler Mode
        4. 7.3.9.4 Extended Frame Handler Mode
      10. 7.3.10 SPI Communication
      11. 7.3.11 SPI Modes and Frame Formats
      12. 7.3.12 Memory and Registry Maps
        1. 7.3.12.1 device Registers
        2. 7.3.12.2 channel Registers
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
    3. 8.3 Power Supply Recommendations
  10. 9 Device and Documentation Support
    1. 9.1 Receiving Notification of Documentation Updates
    2. 9.2 Support Resources
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information
    1. 11.1 Tape and Reel Information
    2. 11.2 Mechanical Data

7.3.2.1 CQ Driver Fault Detection

The TIOM2212 signals a fault when the C/Q driver exceeds the CQ_ILIM for longer than the blanking time duration. The current limit, blanking time, and auto-retry time can each be set in the CQ_DRV_CFG register. Upon a C/Q overcurrent fault, the CQ_OC bit is set in CPIREQ register. This condition can be ignored by masking the bit using the CPIMASK register. The device supports two modes (set by CQ_DRV_AR_DIS) when the C/Q driver exceeds CQ_ILIM. The device can either continue to supply current indefinitely until it reaches the thermal shutdown threshold, or it can operate in auto-retry mode. In auto-retry mode, the device supplies current equal to CQ_ILIM for a duration equal to the current blanking time, and then disables the output for a duration equal to the auto-retry time. As long as the C/Q driver continues to exceed CQ_ILIM, this routine will repeat a number of times until it reaches the value set in the CQ_DRV_MAX_AR field (and it will repeat an infinite number of times if the value of this field is 0000b).