ZHCSQI1A November   2022  – November 2023 TPS92622-Q1

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  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 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1  Power Supply (SUPPLY)
        1. 6.3.1.1 Power-On Reset (POR)
        2. 6.3.1.2 Suppply Current in Fault Mode
      2. 6.3.2  Enable and Shutdow(EN)
      3. 6.3.3  Constant-Current Output and Setting (INx)
      4. 6.3.4  Thermal Sharing Resistor (OUTx and RESx)
      5. 6.3.5  PWM Control (PWMx)
      6. 6.3.6  Supply Control
      7. 6.3.7  Diagnostics
        1. 6.3.7.1 LED Short-to-GND Detection
        2. 6.3.7.2 LED Open-Circuit Detection
        3. 6.3.7.3 LED Open-Circuit Detection Enable (DIAGEN)
        4. 6.3.7.4 Overtemperature Protection
        5. 6.3.7.5 Low Dropout Operation
      8. 6.3.8  FAULT Bus Output With One-Fails-All-Fail
      9. 6.3.9  FAULT Table
      10. 6.3.10 LED Fault Summary
      11. 6.3.11 IO Pins Inner Connection
    4. 6.4 Device Functional Modes
      1. 6.4.1 Undervoltage Lockout, V(SUPPLY) < V(POR_rising)
      2. 6.4.2 Normal Operation V(SUPPLY) ≥ 4.5 V
      3. 6.4.3 Low-Voltage Dropout Operation
      4. 6.4.4 Fault Mode
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Applications
      1. 7.2.1 BCM Controlled Rear Lamp With One-Fails-All-Fail Setup
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
        3. 7.2.1.3 Application Curves
      2. 7.2.2 Independent PWM Controlled Rear Lamp By MCU
        1. 7.2.2.1 Design Requirements
        2. 7.2.2.2 Detailed Design Procedure
        3. 7.2.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 接收文档更新通知
    2. 8.2 支持资源
    3. 8.3 Trademarks
    4. 8.4 静电放电警告
    5. 8.5 术语表
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

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5.6 Typical Characteristics

GUID-20221028-SS0I-NH9G-RK92-RB6KTDJGJVCL-low.svgFigure 5-1 Output Current vs Supply Voltage
GUID-20221028-SS0I-RVKG-XG2F-KNS9MGDDW7GC-low.svgFigure 5-3 Output Current vs Dropout Voltage
GUID-20221028-SS0I-D8PF-ZSHS-DQX5CQWL1BRV-low.svgFigure 5-5 PWM Output Duty Cycle vs PWM Input Duty Cycle
GUID-20221028-SS0I-SGQR-HFQK-0B23NQZRGXPF-low.svgFigure 5-7 Power Dissipation vs Supply Voltage
GUID-20221028-SS0I-ZLPX-52Q8-N5JVKBJF9WVK-low.svgFigure 5-9 Power Dissipation vs Supply Voltage
GUID-C10423EF-8844-4627-B450-C8D665FD15E7-low.svg
Ch1 = V(SUPPLY)Ch2 = V(OUT1)Ch3 = V(PWM1)
Ch4 = I(OUT_Tot)
Figure 5-11 Supply Dimming at 200 Hz
GUID-BE566CD5-954B-42F5-9765-3287C04ACCCC-low.svg
Ch1 = V(SUPPLY)Ch2 = V(OUT1)Ch3 = V(PWM1)
Ch4 = I(OUT_Tot)
Figure 5-13 PWM Dimming at 1 kHz
GUID-5FC8E393-5CAF-479F-8594-7F442A990CCB-low.svg
Ch1 = V(SUPPLY)Ch2 = V(OUT1)Ch3 = V(FAULT)
Ch4 = I(OUT_Tot)
Figure 5-15 LED Open Protection Recovery
GUID-05338A4C-1AE8-43E2-8BAE-9093BC8D9234-low.svg
Ch1 = V(SUPPLY)Ch2 = V(OUT1)Ch3 = V(FAULT)
Ch4 = I(OUT_Tot)
Figure 5-17 LED Short-Circuit Protection Recovery
GUID-8B43DE71-78DB-40B7-A8AB-787B36E217DE-low.svg
Ch1 = V(SUPPLY)Ch2 = V(OUT1)Ch3 = V(FAULT)
Ch4 = I(OUT_Tot)DIAGEN = High when Supply > 8 V
Figure 5-19 Transient Overvoltage
GUID-FF06BE9E-FB35-464F-926C-531A830E1D8C-low.svg
Ch1 = V(SUPPLY)Ch2 = V(OUT1)Ch3 = V(FAULT)
Ch4 = I(OUT_Tot)DIAGEN = High when Supply > 8 V
Figure 5-21 Slow Decrease and Slow Increase of Supply Voltage
GUID-03ECC569-30AF-490A-853D-FE519DA19FF4-low.svg
Ch1 = V(SUPPLY) Ch2 = V(OUT1)Ch3 = V(FAULT)
Ch4 = I(OUT_Tot)DIAGEN = High when Supply > 8 V
Figure 5-23 Superimposed Alternating Voltage 1 kHz
GUID-20221028-SS0I-WXX2-V7DS-Z6LFF57NHHDB-low.svgFigure 5-2 Output Current vs Temperature
GUID-20221028-SS0I-XM2R-9B5C-DMVCTBCK1BVM-low.svgFigure 5-4 Output Current vs Dropout Voltage
GUID-20221028-SS0I-RPCB-T5J5-ZK7B1PNMWJR6-low.svgFigure 5-6 Output Current Distribution vs Supply Voltage
GUID-20221028-SS0I-HJQ5-N5DX-H92B0VBHWJW4-low.svgFigure 5-8 Output Current Distribution vs Supply Voltage
GUID-28120244-4E48-49B5-8A25-987C9104EB22-low.svg
Ch1 = V(SUPPLY)Ch2 = V(OUT1)Ch3 = V(PWM1)
Ch4 = I(OUT_Tot)
Figure 5-10 Power-Up Sequence
GUID-35351A4F-AF14-4166-AB57-F106A22BDD67-low.svg
Ch1 = V(SUPPLY)Ch2 = V(OUT1)Ch3 = V(PWM1)
Ch4 = I(OUT_Tot)
Figure 5-12 PWM Dimming at 200 Hz
GUID-75DEC8F6-417D-4B88-BC1D-5176F6A8AD9B-low.svg
Ch1 = V(SUPPLY)Ch2 = V(OUT1)Ch3 = V(FAULT)
Ch4 = I(OUT_Tot)
Figure 5-14 LED Open Protection
GUID-BE09AF49-C547-4DE3-B6DF-9E00A02C4B8A-low.svg
Ch1 = V(SUPPLY)Ch2 = V(OUT1)Ch3 = V(FAULT)
Ch4 = I(OUT_Tot)
Figure 5-16 LED Short-Circuit Protection
GUID-DF271715-F966-47A8-87C1-8280B83F5C45-low.svg
Ch1 = V(SUPPLY)Ch2 = V(OUT1)Ch3 = V(FAULT)
Ch4 = I(OUT_Tot)DIAGEN = High when Supply > 8 V
Figure 5-18 Transient Undervoltage
GUID-E842FD2A-0374-4207-A3F4-3285B5D53093-low.svg
Ch1 = V(SUPPLY)Ch2 = V(OUT1)Ch3 = V(FAULT)
Ch4 = I(OUT_Tot)DIAGEN = High when Supply > 8 V
Figure 5-20 Slow Decrease and Quick Increase of Supply Voltage
GUID-D16F78F3-37C0-4C18-8F4E-ECA09802681A-low.svg
Ch1 = V(SUPPLY)Ch2 = V(OUT1)Ch3 = V(FAULT)
Ch4 = I(OUT_Tot)DIAGEN = High when Supply > 8 V
Figure 5-22 Superimposed Alternating Voltage 15 Hz
GUID-E6AD2E68-69C4-49CA-86B6-4243B9521E5F-low.svg
Ch1 = V(SUPPLY)Ch2 = V(OUT1)Ch3 = V(FAULT)
Ch4 = I(OUT_Tot)DIAGEN = High when Supply > 8 V
Figure 5-24 Jump Start