ZHCSFF4C February   2016  – August 2021 TPS65981

PRODUCTION DATA  

1. 1 特性
2. 2 應(yīng)用
3. 3 說明
4. 4 Revision History
5. 5 說明（續(xù)）
6. 6 Pin Configuration and Functions
7. 7 Specifications
   1. 7.1  Absolute Maximum Ratings
   2. 7.2  ESD Ratings
   3. 7.3  Recommended Operating Conditions
   4. 7.4  Thermal Information
   5. 7.5  Power Supply Requirements and Characteristics
   6. 7.6  Power Supervisor Characteristics
   7. 7.7  Power Consumption Characteristics
   8. 7.8  Cable Detection Characteristics
   9. 7.9  USB-PD Baseband Signal Requirements and Characteristics
   10. 7.10 USB-PD TX Driver Voltage Adjustment Parameter
   11. 7.11 Port Power Switch Characteristics
   12. 7.12 Port Data Multiplexer Switching Characteristics
   13. 7.13 Port Data Multiplexer Clamp Characteristics
   14. 7.14 Port Data Multiplexer SBU Detection Requirements
   15. 7.15 Port Data Multiplexer Signal Monitoring Pullup and Pulldown Characteristics
   16. 7.16 Port Data Multiplexer USB Endpoint Requirements and Characteristics
   17. 7.17 Port Data Multiplexer BC1.2 Detection Requirements and Characteristics
   18. 7.18 Analog-to-Digital Converter (ADC) Characteristics
   19. 7.19 Input-Output (I/O) Requirements and Characteristics
   20. 7.20 I2C Slave Requirements and Characteristics
   21. 7.21 SPI Controller Characteristics
   22. 7.22 BUSPOWERZ Configuration Requirements
   23. 7.23 Single-Wire Debugger (SWD) Timing Requirements
   24. 7.24 Thermal Shutdown Characteristics
   25. 7.25 HPD Timing Requirements and Characteristics
   26. 7.26 Oscillator Requirements and Characteristics
   27. 7.27 Typical Characteristics
8. 8 Parameter Measurement Information
9. 9 Detailed Description
   1. 9.1 Overview
   2. 9.2 Functional Block Diagram
   3. 9.3 Feature Description
      1. 9.3.1  USB-PD Physical Layer
         1. 9.3.1.1 USB-PD Encoding and Signaling
         2. 9.3.1.2 USB-PD Bi-Phase Marked Coding
         3. 9.3.1.3 USB-PD Transmit (TX) and Receive (Rx) Masks
         4. 9.3.1.4 USB-PD BMC Transmitter
         5. 9.3.1.5 USB-PD BMC Receiver
      2. 9.3.2  Cable Plug and Orientation Detection
         1. 9.3.2.1 Configured as a DFP
         2. 9.3.2.2 Configured as a UFP
         3. 9.3.2.3 Dead-Battery or No-Battery Support
      3. 9.3.3  Port Power Switches
         1. 9.3.3.1  5-V Power Delivery
         2. 9.3.3.2  5V Power Switch as a Source
         3. 9.3.3.3  PP_5V0 Current Sense
         4. 9.3.3.4  PP_5V0 Current Limit
         5. 9.3.3.5  Internal HV Power Delivery
         6. 9.3.3.6  Internal HV Power Switch as a Source
         7. 9.3.3.7  Internal HV Power Switch as a Sink
         8. 9.3.3.8  Internal HV Power Switch Current Sense
         9. 9.3.3.9  Internal HV Power Switch Current Limit
         10. 9.3.3.10 External HV Power Delivery
         11. 9.3.3.11 External HV Power Switch as a Source with RSENSE
         12. 9.3.3.12 External HV Power Switch as a Sink With RSENSE
         13. 9.3.3.13 External HV Power Switch as a Sink Without RSENSE
         14. 9.3.3.14 External Current Sense
         15. 9.3.3.15 External Current Limit
         16. 9.3.3.16 Soft Start
         17. 9.3.3.17 BUSPOWERZ
         18. 9.3.3.18 Voltage Transitions on VBUS through Port Power Switches
         19. 9.3.3.19 HV Transition to PP_RV0 Pull-down on VBUS
         20. 9.3.3.20 VBUS Transition to VSAFE0V
         21. 9.3.3.21 C_CC1 and C_CC2 Power Configuration and Power Delivery
         22. 9.3.3.22 PP_CABLE to C_CC1 and C_CC2 Switch Architecture
         23. 9.3.3.23 PP_CABLE to C_CC1 and C_CC2 Current Limit
      4. 9.3.4  USB Type-C? Port Data Multiplexer
         1. 9.3.4.1 USB Top and Bottom Ports
         2. 9.3.4.2 Multiplexer Connection Orientation
         3. 9.3.4.3 SBU Crossbar Multiplexer
         4. 9.3.4.4 Signal Monitoring and Pull-up and Pull-down
         5. 9.3.4.5 Port Multiplexer Clamp
         6. 9.3.4.6 USB2.0 Low-Speed Endpoint
         7. 9.3.4.7 Battery Charger (BC1.2) Detection Block
         8. 9.3.4.8 BC1.2 Data Contact Detect
         9. 9.3.4.9 BC1.2 Primary and Secondary Detection
      5. 9.3.5  Power Management
         1. 9.3.5.1 Power-On and Supervisory Functions
         2. 9.3.5.2 Supply Switch-Over
         3. 9.3.5.3 RESETZ and MRESET
      6. 9.3.6  Digital Core
      7. 9.3.7  USB-PD BMC Modem Interface
      8. 9.3.8  System Glue Logic
      9. 9.3.9  Power Reset Congrol Module (PRCM)
      10. 9.3.10 Interrupt Monitor
      11. 9.3.11 ADC Sense
      12. 9.3.12 I2C Slave
      13. 9.3.13 SPI Controller
      14. 9.3.14 Single-Wire Debugger Interface
      15. 9.3.15 DisplayPort HPD Timers
      16. 9.3.16 ADC
          1. 9.3.16.1 ADC Divider Ratios
          2. 9.3.16.2 ADC Operating Modes
          3. 9.3.16.3 Single Channel Readout
          4. 9.3.16.4 Round-Robin Automatic Readout
          5. 9.3.16.5 One Time Automatic Readout
      17. 9.3.17 I/O Buffers
          1. 9.3.17.1 IOBUF_GPIOLS and IOBUF_GPIOLSI2C
          2. 9.3.17.2 IOBUF_OD
          3. 9.3.17.3 IOBUF_PORT
          4. 9.3.17.4 IOBUF_I2C
          5. 9.3.17.5 IOBUF_GPIOHSPI
          6. 9.3.17.6 IOBUF_GPIOHSSWD
      18. 9.3.18 Thermal Shutdown
      19. 9.3.19 Oscillators
   4. 9.4 Device Functional Modes
      1. 9.4.1 Boot Code
      2. 9.4.2 Initialization
      3. 9.4.3 I2C Configuration
      4. 9.4.4 Dead-Battery Condition
      5. 9.4.5 Application Code
      6. 9.4.6 Flash Memory Read
      7. 9.4.7 Invalid Flash Memory
   5. 9.5 Programming
      1. 9.5.1 SPI Controller Interface
      2. 9.5.2 I2C Slave Interface
         1. 9.5.2.1 I2C Interface Description
         2. 9.5.2.2 I2C Clock Stretching
         3. 9.5.2.3 I2C Address Setting
         4. 9.5.2.4 Unique Address Interface
         5. 9.5.2.5 I2C Pin Address Setting
10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Applications
       1. 10.2.1 Fully-Featured USB Type-C? and PD Charger Application
          1. 10.2.1.1 Design Requirements
             1. 10.2.1.1.1 External FET Path Components (PP_EXT and RSENSE)
          2. 10.2.1.2 Detailed Design Procedure
             1. 10.2.1.2.1 TPS65981 External Flash
             2. 10.2.1.2.2 Debug Control (DEBUG_CTL) and I2C (I2C) Resistors
             3. 10.2.1.2.3 Oscillator (R_OSC) Resistor
             4. 10.2.1.2.4 VBUS Capacitor and Ferrite Bead
             5. 10.2.1.2.5 Soft Start (SS) Capacitor
             6. 10.2.1.2.6 USB Top (C_USB_T), USB Bottom (C_USB_B), and Sideband-Use (SBU) Connections
             7. 10.2.1.2.7 Port Power Switch (PP_EXT, PP_HV, PP_5V0, and PP_CABLE) Capacitors
             8. 10.2.1.2.8 Cable Connection (CCn) Capacitors and RPD_Gn Connections
             9. 10.2.1.2.9 LDO_3V3, LDO_1V8A, LDO_1V8D, LDO_BMC, VIN_3V3, and VDDIO
          3. 10.2.1.3 Application Curve
       2. 10.2.2 USB Type-C? and PD Dock or Monitor Application
          1. 10.2.2.1 Design Requirements
          2. 10.2.2.2 Detailed Design Procedure
             1. 10.2.2.2.1 Port Power Switch (PP_5V0 and PP_CABLE) Capacitors
             2. 10.2.2.2.2 HD3SS460 Control and DisplayPort Configuration
             3. 10.2.2.2.3 AC-DC Power Supply (Barrel Jack) Detection Circuitry
             4. 10.2.2.2.4 TPS65981 Control of Variable Buck Regulator Output Voltage (PP_HV)
             5. 10.2.2.2.5 TPS65981 and System Controller Interaction
          3. 10.2.2.3 Application Curves
11. 11Power Supply Recommendations
    1. 11.1 3.3 V Power
       1. 11.1.1 VIN_3V3 Input Switch
       2. 11.1.2 VBUS 3.3-V LDO
    2. 11.2 1.8 V Core Power
       1. 11.2.1 1.8 V Digital LDO
       2. 11.2.2 1.8 V Analog LDO
    3. 11.3 VDDIO
       1. 11.3.1 Recommended Supply Load Capacitance
       2. 11.3.2 Schottky for Current Surge Protection
12. 12Layout
    1. 12.1 Layout Guidelines
       1. 12.1.1  TPS65981 Recommended Footprint
       2. 12.1.2  Top TPS65981 Placement and Bottom Component Placement and Layout
       3. 12.1.3  Component Placement
       4. 12.1.4  Designs Rules and Guidance
       5. 12.1.5  Routing PP_HV, PP_EXT, PP_5V0, and VBUS
       6. 12.1.6  Routing Top and Bottom Passive Components
       7. 12.1.7  Thermal Pad Via Placement
       8. 12.1.8  Top Layer Routing
       9. 12.1.9  Inner Signal Layer Routing
       10. 12.1.10 Bottom Layer Routing
    2. 12.2 Layout Example
13. 13Device and Documentation Support
    1. 13.1 Device Support
       1. 13.1.1 Development Support
    2. 13.2 Documentation Support
       1. 13.2.1 Related Documentation
    3. 13.3 接收文檔更新通知
    4. 13.4 支持資源
    5. 13.5 Trademarks
    6. 13.6 Electrostatic Discharge Caution
    7. 13.7 術(shù)語表
14. 14Mechanical, Packaging, and Orderable Information