ZHCSQQ6 October   2023 TPS2HCS10-Q1

ADVANCE INFORMATION  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
    1. 5.1 Recommended Connections for Unused Pins
  7. 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 SPI Timing Requirements
    7. 6.7 Switching Characteristics
  8. 7 Parameter Measurement Information
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Protection Mechanisms
        1. 8.3.1.1 Programmable Fuse Protection
        2. 8.3.1.2 Thermal Shutdown
        3. 8.3.1.3 Overcurrent Protection And Capacitive Load Charging
        4. 8.3.1.4 Reverse Battery
      2. 8.3.2 Diagnostic Mechanisms
        1. 8.3.2.1 VOUT Short-to-Battery and Open-Load
          1. 8.3.2.1.1 Detection With Channel Output (FET) Enabled
          2. 8.3.2.1.2 Detection With Channel Output Disabled
        2. 8.3.2.2 Digital Current Sense Output
          1. 8.3.2.2.1 RSNS Value and Accuracy / Resolution of Current Measurement
            1. 8.3.2.2.1.1 High Accuracy Load Current Sense
            2. 8.3.2.2.1.2 SNS Output Filter
        3. 8.3.2.3 Output Voltage and FET Temperature Sensing
    4. 8.4 Device Functional Modes
      1. 8.4.1 State Diagram
      2. 8.4.2 SLEEP
      3. 8.4.3 CONFIG/ACTIVE
      4. 8.4.4 Battery Supply Input (VBB) Under-voltage
      5. 8.4.5 LOW POWER MODE (LPM) State
      6. 8.4.6 LIMP HOME state
      7. 8.4.7 SPI Mode Operation
    5. 8.5 TPS2HC10S Registers
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Thermal Considerations
        2. 9.2.2.2 Configuring the Capacitive Charging Mode
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 接收文档更新通知
    3. 10.3 支持资源
    4. 10.4 Trademarks
    5. 10.5 静电放电警告
    6. 10.6 术语表
  12. 11Mechanical, Packaging, and Orderable Information
    1. 11.1 Tape and Reel Information

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8.4.1 State Diagram

The device has three main categories of states it can transition into and out of: low quiescent current, normal operation, and failsafe. Insdie of each of the categories are several states the device can be in. The state diagram for the device is shown in Figure 8-9

GUID-20230323-SS0I-6VVQ-VPJW-FC5J2FL8JLRJ-low.svgFigure 8-9 State Diagram
Table 8-1 State Transition
Operating ModeEntering ConditionLeaving ConditionCharacteristics
Off (this is not an operating mode)ANY STATE
  • On POR from loss of all supply
SLEEP
  • POR is RESET when supply input is available
Nothing powered
SLEEPOFF
  • VBB > VBBPOR
  • ACTIVE
    • SLEEP SPI Command
CONFIG /ACTIVE through INIT & ABIST
  •  CS= 0 AND VDD > VDD_UVLOR
A Dummy SPI command will wake the device from SLEEP
  • VOUTx OFF
  • Digital OFF
  • Registers Lost
  • IVBB = IVBBSLEEP (~1’s μA)
  • IVDD = IVDDSLEEP (~sub μA)
CONFIG/ACTIVESLEEP through INIT & ABIST
  •  CS = 0 AND
  • VDD > UVLOR
LOW POWER MODE through ABIST
  • LPM Exit SPI OR
  • Load current increase
LIMP HOME
  • VDD > UVLOR AND
  • "LH_STAT" = 1 AND
  • LHI pin is low
SLEEP
  • SPI SLEEP command
LOW POWER MODE
  • LPM SPI Command
LIMP HOME
  • VDD < UVLOF OR
  • SPI WD failure if set OR
  • LHI pin pulled HI
  • All registers can be configured
  • VOUTx ON/OFF
  • On state diagnostics available
    • FLT reporting
    • OL on state
    • All ISNS, VSNS, TSNS
  • IVDD = Full IQ
  • IVBB = Full IQ
LOW POWER MODE (LPM)ACTIVE
  • LPM SPI Command
ACTIVE through ABIST
  • LPM Exit SPI OR
  • Load current increase
  • High RON
  • Digital mostly off
  • Register values held
  • IVDD = IDDLPM (~12 μA)
  • IVBB = IQLPM (~ 4 μA/ch)
VBB_UVLOCONFIG/ACTIVE
  • VBB < UVLOF AND
  • !POR AND
  • VDD > UVLOR
CONFIG/ACTIVE
  • VBB > UVLOF AND
  • !POR AND
  • VDD > UVLOR
  • VOUTx OFF
  • Digital ON
  • Register Values Kept
  • SPI communication and diagnostics not supported
LIMP HOMECONFIG/ACTIVE
  • VDD < UVLOF OR
  • LHI pin HI OR
  • SPI WD failure, if set
CONFIG/ACTIVE
  • VDD > UVLOR AND
  • "LH_STAT" = 1 AND
  • LHI pin is low
  • VOUTx set by LHI_IN or DIx
  • Digital ON
  • Register values kept, if initialized
  • SPI communication and diagnostics supported, if VDD high
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