ZHCSHN4D February   2018  – September 2021 TPS1H200A-Q1

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  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 Switching Characteristics
    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 Current limit
      2. 7.3.2 DELAY Pin Configuration
        1. 7.3.2.1 Holding Mode
        2. 7.3.2.2 Latch-Off Mode
        3. 7.3.2.3 Auto-Retry Mode
      3. 7.3.3 Stand-alone Operation
      4. 7.3.4 Fault Truth Table
      5. 7.3.5 Full Diagnostics
        1. 7.3.5.1 Short-to-GND and Overload Detection
        2. 7.3.5.2 Open-Load Detection
          1. 7.3.5.2.1 Output On
          2. 7.3.5.2.2 Output Off
        3. 7.3.5.3 Short-to-Battery Detection
        4. 7.3.5.4 Thermal Fault Detection
          1. 7.3.5.4.1 Thermal Shutdown
          2. 7.3.5.4.2 Thermal Swing
          3. 7.3.5.4.3 Fault Report Holding
      6. 7.3.6 Full Protections
        1. 7.3.6.1 UVLO Protection
        2. 7.3.6.2 Inductive Load Switching Off Clamp
        3. 7.3.6.3 Loss-of-GND Protection
        4. 7.3.6.4 Loss-of-Power-Supply Protection
        5. 7.3.6.5 Reverse-Current Protection
        6. 7.3.6.6 MCU I/O Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Working Modes
        1. 7.4.1.1 Normal Mode
        2. 7.4.1.2 Standby Mode
        3. 7.4.1.3 Standby Mode With Diagnostics
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 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 接收文档更新通知
    3. 11.3 支持资源
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 术语表
  12. 12Mechanical, Packaging, and Orderable Information

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7.3.4 Fault Truth Table

The DIAG_EN pin enables or disables the diagnostic functions. If multiple devices are used, but the ADC resource is limited in the microcontroller, the microcontroller uses GPIOs to set DIAG_EN high to enable the diagnostics of one device, and disables the diagnostics of the other devices by setting DIAG_EN low. Additionally, the device can keep power consumption to a minimum by setting DIAG_EN and IN low.

Table 7-2 applies when the DIAG_EN pin is enabled, and Table 7-3 applies when the DIAG_EN pin is disabled.

Table 7-2 Fault Truth Table
CONDITIONINOUTCRITERIONFAULTFAULT RECOVERY
NormalLLN/AHN/A
HHN/AH
Overload or short to GNDHLcurrent limit triggeredLSee Table 7-1.
Open load or short to batteryHHIOUT < l(ol,on)LFAULT clears when IN turns low for a duration longer than t FAULT. OR FAULT clears when the open load is removed.
L(1)HVVS – VOUT < V(ol,off)LFAULT clears when IN is toggling OR FAULT clears when the open load is removed.
Thermal shutdownHN/AThermal shutdown triggeredLFAULT clears when IN turns low for a duration longer than t FAULT. OR FAULT clears when thermal shutdown quits.
Thermal swingHN/AThermal swing triggeredLFAULT clears when IN turns low for a duration longer than t FAULT. OR FAULT clears when thermal swing quits.
(1) An external pullup is required for open-load detection.
Table 7-3 DIAG_EN Disabled Condition
DIAG_ENIN CONDITIONPROTECTIONS AND DIAGNOSTICS
LOWONDiagnostics disabled, full protections
OFFDiagnostics disabled, no protection