SLVA888C April   2017  – January 2021 TPS65987D , TPS65988

 

  1.   Trademarks
  2. 1Schematic Design Guidelines
    1. 1.1  Power Supply Scheme
      1. 1.1.1 VIN_3V3
      2. 1.1.2 LDO_3V3
      3. 1.1.3 LDO_1V8
    2. 1.2  Boot Configuration
      1. 1.2.1 BUSPOWER (ADCIN1)
      2. 1.2.2 External SPI Flash
    3. 1.3  I2C Interface
      1. 1.3.1 I2C Pin Address Setting (ADCIN2)
    4. 1.4  HRESET
    5. 1.5  Configuration Channel / VCONN Lines
      1. 1.5.1 PP_CABLE
    6. 1.6  Battery Charger Detection and Advertisement (BC1.2)
    7. 1.7  GPIOs
    8. 1.8  Hot Plug Detect or HPD Line
    9. 1.9  PP_EXT Power Path Control
    10. 1.10 Power Path Considerations
  3. 2Layout Guidelines
    1. 2.1 Power Domain
    2. 2.2 Hi Speed Lines
    3. 2.3 Other Considerations
  4. 3Summary
  5. 4References
  6.   A Appendix
    1.     A.1 Dead Battery Considerations
    2.     A.2 TPS65987DDH Schematic Checklist
    3.     A.3 TPS65987DDH System Checklist
  7.   Revision History

1.7 GPIOs

This device has multiple GPIOs which could be used to assign PD events from the device configuration tool. These GPIOs supports multiple event options to indicate various states. It can take inputs from the system to make appropriate decisions. All the unused GPIOs should be left floating in the hardware. Some of the GPIOs have specific features and should be used accordingly. Refer to the TPS65987DDH schematic checklist in the Appendix of this document.