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TPS65983 schematics design

Hugo Wang
Expert 1525 points

Other Parts Discussed in Thread: TPS65982, TPS65982-EVM

Hi Sir

I have a question about TPS65983's K9 and K10 pin design as followings.

Is it connected with GND correct? Or K9 connected with L9 and K10 connected with L10 are right are right?

Thank you for your support.

  • 0
    TI__Mastermind 30310 points

    Hugo,

    The connections of RPD_G1/G2 are application-specific:

    • RPD_G1 (K9) shorted to C_CC1 (L9) & RPD_G2 (K10) shorted to C_CC2 (L10) =Dead or No Battery Mode Supported for presenting Rd (Type-C pull-down) without VIN_3V3 present; VBUS is used to BOOT and load Application Code
      • This applies to Laptops, Tablets, or bus-powered applications with or without batteries such as Bluetooth Speakers or Wifi-Enabled Media Boxes
    • RPD_G1 (K9) shorted GND & RPD_G2 (K10) shorted to GND= Application must be Externally Powered (VIN_3V3) supplied from DC source other than VBUS
      • This applies to Docks, Monitors, TVs, or any application with a DC Barrel Jack as the main power supply and no battery

    This answer applies to the the TPS65982 and TPS65983.

    The TPS65982-EVM is wired with 0-Ohm resistors to support both types of applications while evaluating the TPS65982, but the default assembly DOES support Dead Battery Mode (RPD_G1/G2 shorted to C_CC1/2).