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

1.5.1 PP_CABLE

The 5-V supply to these pins are used to provide VCONN on the unused CC pin. Current passing through these pins is monitored internally. The VCONN FET turns off if current goes above 600 mA. This provides over current protection on VCONN.

GUID-AE427252-EAED-44E4-A814-EF0684BAA646-low.jpg Figure 1-5 Port Power Switches