SLVSF65A December   2020  – May 2021 TPS92633-Q1

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and 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 (SUPPLY)
        1. 7.3.1.1 Power-On Reset
        2. 7.3.1.2 Supply Current in Fault Mode
      2. 7.3.2  Enable and Shutdown (EN)
      3. 7.3.3  Reference Current (IREF)
      4. 7.3.4  Constant-Current Output and Setting (INx)
      5. 7.3.5  Analog Current Control (ICTRL)
        1. 7.3.5.1 Off-Board Brightness Binning Resistor
        2. 7.3.5.2 NTC Resistor
      6. 7.3.6  Thermal Sharing Resistor (OUTx and RESx)
      7. 7.3.7  PWM Control (PWMx)
      8. 7.3.8  Supply Control
      9. 7.3.9  Diagnostics
        1. 7.3.9.1 IREF Short-to-GND Detection
        2. 7.3.9.2 IREF Open Detection
        3. 7.3.9.3 LED Short-to-GND Detection
        4. 7.3.9.4 LED Open-Circuit Detection
        5. 7.3.9.5 Single LED Short-Circuit Detection (SLS_REF)
        6. 7.3.9.6 LED Open-Circuit and Single LED Short-Circuit Detection Enable (DIAGEN)
        7. 7.3.9.7 Low Dropout Operation
        8. 7.3.9.8 Over-Temperature Protection
      10. 7.3.10 FAULT Bus Output With One-Fails–All-Fail
      11. 7.3.11 FAULT Table
      12. 7.3.12 LED Fault Summary
      13. 7.3.13 IO Pins Inner Connection
    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 BCM Controlled Rear Lamp with One-Fails-All-Fail Setup
        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 Independent PWM Controlled Rear Lamp with Off Board LED and Binning Resistor
        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 Receiving Notification of Documentation Updates
    2. 11.2 Support Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

6.7 Typical Characteristics

GUID-20201108-CA0I-0PQW-VVPN-HZNG8LL48Z1R-low.gifFigure 6-1 Output Current vs Supply Voltage
GUID-20201109-CA0I-1SGB-VBXN-FQ9TPJZDNF4P-low.gifFigure 6-3 Output Current vs Dropout Voltage
GUID-20201109-CA0I-RFFH-LSXC-K0NLLVCFD9RB-low.gifFigure 6-5 V(CS_REG) vs ICTRL Voltage
GUID-20201112-CA0I-LVMG-K6RX-4KFPJFQPXHCT-low.gif
Ch1 = V(SUPPLY) Ch2 = V(EN) Ch3 = V(PWM1)
Ch4 = V(OUT1) Ch5 = I(OUT_Tot)
Figure 6-7 Power Up Sequency
GUID-20201112-CA0I-VTRH-GT65-FWWRPSFRVTBZ-low.gif
Ch1 = V(SUPPLY) Ch2 = V(EN) Ch3 = V(PWM1)
Ch4 = V(OUT1) Ch5 = I(OUT_Tot)
Figure 6-9 PWM Dimming at 200 Hz
GUID-20201115-CA0I-WGDC-KQDF-CCPR7WSKNW9W-low.gif
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot)
Figure 6-11 LED Open Protection
GUID-20201115-CA0I-TMW1-1XQ5-BBLCFCKQXLZ7-low.gif
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot)
Figure 6-13 LED Short-Circuit Protection
GUID-20201115-CA0I-L1LZ-PXVG-GNMKGTNCTXMH-low.gif
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot)
Figure 6-15 Single LED Short-Circuit Protection
GUID-20201115-CA0I-QRDQ-PMXG-VGWVMLC0GP2N-low.gif
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot) DIAGEN = High
Figure 6-17 Transient Undervoltage
GUID-20201112-CA0I-Q1C9-FQCS-Z5C4PNMSFTXM-low.gif
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot) DIAGEN = High
Figure 6-19 Slow Decrease and Quick Increase of Supply Voltage
GUID-20201115-CA0I-P2DL-MGVH-FNFBRF1QZH94-low.gif
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot) DIAGEN = High
Figure 6-21 Superimposed Alternating Voltage 15 Hz
GUID-20201115-CA0I-7FVB-QBT8-6BSQRLZKC7SL-low.gif
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot) DIAGEN = High
Figure 6-23 Jump Start
GUID-20201111-CA0I-TB2X-28XW-GVGT35CLCWDV-low.gifFigure 6-2 Output Current vs Temperature
GUID-20201109-CA0I-CRXL-SZGC-FLMJLJ2TNV3H-low.gifFigure 6-4 Output Current vs Dropout Voltage
GUID-20201109-CA0I-6C7R-DXKQ-4RB9HCBWS2PZ-low.gifFigure 6-6 PWM Output Duty Cycle vs PWM Input Duty Cycle
GUID-20201112-CA0I-NVL0-KSRD-Z0ST0P9VSV12-low.gif
Ch1 = V(SUPPLY) Ch2 = V(EN) Ch3 = V(PWM1)
Ch4 = V(OUT1) Ch5 = I(OUT_Tot)
Figure 6-8 Supply Dimming at 200 Hz
GUID-20201112-CA0I-7N6D-GHCS-6NDNNH8KD1PX-low.gif
Ch1 = V(SUPPLY) Ch2 = V(EN) Ch3 = V(PWM1)
Ch4 = V(OUT1) Ch5 = I(OUT_Tot)
Figure 6-10 PWM Dimming at 1 kHz
GUID-20201115-CA0I-8JF7-SGL9-FTZVGBXH4FV7-low.gif
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot)
Figure 6-12 LED Open Protection Recovery
GUID-20201115-CA0I-9Z3C-LHFC-0FQDMSKGFJK5-low.gif
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot)
Figure 6-14 LED Short-Circuit Protection Recovery
GUID-20201115-CA0I-9RVH-HG4J-2QXHGG5HKR9W-low.gif
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot)
Figure 6-16 Single LED Short-Circuit Protection Recovery
GUID-20201115-CA0I-DSDP-FDFM-CWSPQXV7LBM9-low.gif
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot) DIAGEN = High
Figure 6-18 Transient Overvoltage
GUID-20201112-CA0I-GNF2-D1WW-TV1RGQKPPQJT-low.gif
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot) DIAGEN = High
Figure 6-20 Slow Decrease and Slow Increase of Supply Voltage
GUID-20201115-CA0I-TVLB-ZW8B-MSRH8NKRN7XR-low.gif
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot) DIAGEN = High
Figure 6-22 Superimposed Alternating Voltage 1 kHz