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Regarding TPS65982

Suneetha
Prodigy 60 points
Other Parts Discussed in Thread: TPS65982, TPS6598X-CONFIG

Hello,

I have some doubts in this TPS65982.

1)Can this device can be operated in Device Mode?If Yes Please provide the Reference schematic in Device Mode.

2) I have two Type-C connectors one is acting as Host and another one acting as Device.Two TPS65982 Devices should be used to generate the CC and SBU and VCONN signals?One TPS65982 acting as Host for the Device Type-C Port and another TPS65982 acting as Device for Host Type-C Port.Is it right?

 

3) Is this IC is used in PC or Laptop  Interface for Type-C.

With Regards,

Suneetha.V
  • 0
    TI__Mastermind 30310 points

    Suneetha,

    This post looks very similar to another thread you created: 

    The other thread should be answered in detail, but I can provide a quick answer to your questions in this post also:

    1. Yes, a Device is called a UFP in Type-C & PD for data. Setting the Type-C Port Presentation to Rd guarantees the product will resolve as a UFP & Sink for Type-C detection. A Dual-Role Port (DRP) with Rd and Rp toggling may resolve as a UFP & Sink or a DFP & Source for Type-C and will rely on PD Role Swaps to become a UFP & Source or another combination of the Power/Data roles
    2. I am not sure in this question if the Host & Device are on the same PCB or they are 2 different products connected together by a Type-C cable. I think your other thread is more clear on this subject and it will be answered based on the info provided
    3. Yes, the TPS65982 is the most commonly used Type-C Port controller in the market for Laptops & PCs and it is the only Type-C Port controller approved to interface with the Intel Alpine Ridge chip for ThunderBolt applications. The TPS65982 is also commonly used in the companion Docks for these Laptops/PCs because it can easily negotiate PD contracts and perform Role Swaps automatically without an EC

    You can refer to the TPS6598X-CONFIG Config Tool for more details on the below explanation:

    In a normal Laptop-Dock ecosystem, the Laptop will be a DRP with TrySrc enabled in the System Configurations tab and Initiate Swap to DFP enabled in the Control Configurations tab. The Dock will also be a DRP with TrySrc disabled in System Configurations and Initiate Swap to Source enabled in Control Configurations. An AC Adapter in this ecosystem will usually be a Source (Rp) only because it does not support Data and has no need for role swapping. The Laptop has TrySrc enabled so that it will attempt to be the Type-C Source & DFP for Mobile Phones that do not support PD but are also DRPs to detect  and provide power to Type-C accessories.

    I hope that helps you understand the capabilities of the TPS65982 and why it is so strong acting autonomously in a system without EC intervention, and that it can easily resolve as a UFP (Device) or DFP (Host) based on the requirements of the system.