SLVSFS4A December   2021  – June 2022 TPS92623-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 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 (POR)
        2. 7.3.1.2 Suppply Current in Fault Mode
      2. 7.3.2  Enable and Shutdown
      3. 7.3.3  Constant-Current Output and Setting (INx)
      4. 7.3.4  Thermal Sharing Resistor (OUTx and RESx)
      5. 7.3.5  PWM Control (PWMx)
      6. 7.3.6  Supply Control
      7. 7.3.7  Diagnostics
        1. 7.3.7.1 LED Short-to-GND Detection
        2. 7.3.7.2 LED Open-Circuit Detection
        3. 7.3.7.3 LED Open-Circuit Detection Enable (DIAGEN)
        4. 7.3.7.4 Overtemperature Protection
        5. 7.3.7.5 Low Dropout Operation
      8. 7.3.8  FAULT Bus Output with One-Fails-All-Fail
      9. 7.3.9  FAULT Table
      10. 7.3.10 LED Fault Summary
      11. 7.3.11 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 By MCU
        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

Package Options

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

6.6 Typical Characteristics

Figure 6-1 Output Current vs Supply Voltage
Figure 6-3 Output Current vs Dropout Voltage
Figure 6-5 PWM Output Duty Cycle vs PWM Input Duty Cycle
Figure 6-7 Power Dissipation vs Supply Voltage
Figure 6-9 Power Dissipation vs Supply Voltage
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(PWM1)
Ch4 = I(OUT_Tot)
Figure 6-11 Supply Dimming at 200 Hz
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(PWM1)
Ch4 = I(OUT_Tot)
Figure 6-13 PWM Dimming at 1 kHz
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot)
Figure 6-15 LED Open Protection Recovery
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot)
Figure 6-17 LED Short-Circuit Protection Recovery
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot) DIAGEN = High when Supply > 8 V
Figure 6-19 Transient Overvoltage
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot) DIAGEN = High when Supply > 8 V
Figure 6-21 Slow Decrease and Slow Increase of Supply Voltage
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot) DIAGEN = High when Supply > 8 V
Figure 6-23 Superimposed Alternating Voltage 1 kHz
Figure 6-2 Output Current vs Temperature
Figure 6-4 Output Current vs Dropout Voltage
Figure 6-6 Output Current Distribution vs Supply Voltage
Figure 6-8 Output Current Distribution vs Supply Voltage
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(PWM1)
Ch4 = I(OUT_Tot)
Figure 6-10 Power Up Sequence
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(PWM1)
Ch4 = I(OUT_Tot)
Figure 6-12 PWM Dimming at 200 Hz
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot)
Figure 6-14 LED Open Protection
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot)
Figure 6-16 LED Short-Circuit Protection
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot) DIAGEN = High when Supply > 8 V
Figure 6-18 Transient Undervoltage
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot) DIAGEN = High when Supply > 8 V
Figure 6-20 Slow Decrease and Quick Increase of Supply Voltage
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot) DIAGEN = High when Supply > 8 V
Figure 6-22 Superimposed Alternating Voltage 15 Hz
Ch1 = V(SUPPLY) Ch2 = V(OUT1) Ch3 = V(FAULT)
Ch4 = I(OUT_Tot) DIAGEN = High when Supply > 8 V
Figure 6-24 Jump Start