SLVSEC4B April   2019  – January 2020 TPS92613-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application Diagram
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin 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 Timing Requirements
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Power Supply
        1. 7.3.1.1 Power-On Reset (POR)
        2. 7.3.1.2 Low-Quiescent-Current
      2. 7.3.2 Constant-Current Driver
      3. 7.3.3 PWM Control
      4. 7.3.4 Supply Control
      5. 7.3.5 Diagnostics and Protection
        1. 7.3.5.1 Open-Circuit Detection
        2. 7.3.5.2 Short-to-GND Detection
        3. 7.3.5.3 Overtemperature Protection
        4. 7.3.5.4 DIAGEN
        5. 7.3.5.5 Low-Dropout Operation
      6. 7.3.6 FAULT Bus Output With One-Fails–All-Fail
      7. 7.3.7 Fault Table
    4. 7.4 Device Functional Modes
      1. 7.4.1 Undervoltage Lockout, V(SUPPLY) < V(POR_rising)
      2. 7.4.2 Normal Operation V(SUPPLY) ≥ 4.5 V
      3. 7.4.3 Low-Voltage Dropout Operation
      4. 7.4.4 Fault Mode
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Single-Channel LED Driver With Diagnostics
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Single-Channel LED Driver With Heat Sharing
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    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
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

7.3.7 Fault Table

Table 1. Fault Table With DIAGEN = HIGH

FAULT BUS STATUS FAULT TYPE DETECTION MECHANISM CURRENT OUTPUT DEGLITCH TIME FAULT BUS FAULT HANDLING ROUTINE FAULT RECOVERY
FAULT floating or externally pulled up Open-circuit or short-to-supply V(IN) – V(OUT) < V(OPEN_th_falling) On t(OPEN_deg) Constant-current pulldown Device works normally with FAULT pin pulled low. Device sources I(retry) current when PWM is LOW. Device keeps output normal when PWＭ is HIGH. Auto recovery
Short-to-ground V(OUT) < V(SG_th_falling) On t(SG_deg) Constant-current pulldown Device turns output off and retries with constant current I(retry), ignoring the PWM input. Auto recovery
Overtemperature TJ > T(TSD) On or off t(TSD_deg) Constant-current pulldown Device turns output off. Auto recovery
Externally pulled low Device turns output off

Table 2. Fault Table With DIAGEN = LOW

FAULT BUS STATUS FAULT TYPE DETECTION MECHANISM CURRENT OUTPUT DEGLITCH TIME FAULT BUS FAULT HANDLING ROUTINE FAULT RECOVERY
FAULT floating or externally pulled up Open-circuit or short-to-supply Ignored
Short-to-ground VOUT < V(SG_th_falling) On t(SG_deg) Constant-current pulldown Device turns output off and retries with constant current I(retry), ignoring the PWM input. Auto recovery
Overtemperature TJ > T(TSD) On or off t(TSD_deg) Constant-current pulldown Device turns output off. Auto recovery
Externally pulled low Device turns output off