TUSB4041I: Query whether we can use TUSB4041I without OTP & External Memory (Non-Programmed

Hi,

No EEPROM or SMBUS programming is needed for the TUSB4041I. The TUSB4041I can be pin configured only for normal operation. EEPROM or SMBUS is only needed if more in-depth, specialized configuration is required. Please note that if SMBUSz is pulled low, the TUSB4041I will not work as a hub until a SMBUS host sets the cfg-active bit. If you are not using SMBUS, do not set the SMBUSz pin low.

The TPS2000C EN is active low, so you want to set the TUSB4041I PWRCTL_POL low as well to set the PWRCLT polarity to be low.

Can you share the schematic in .pdf format?

Thanks

David

Hi David, Thanks for the response.

Please find the attached Schematic pdf for your review & confirm if we can use this for our Application. We have updated the SMBUSz Pin as NC & also changed the USB Power Switch Device with Active High Enable. Can you please verify & suggest if any changes needed in the Design.

USB_SCH.pdf

Hi,

Where does +5V_FIL comes from? Can you show the upstream and downstream connection?

Thanks

David

Hi David,

 +5V_FIL is taken from the Board Power Supply.

Sorry as the application is confidential, The Upstream Interface is taken from an internal Board using Board-Board Stacked Connector & While coming to the Down stream connectivity. Two Interfaces are going to a USB Connector & remaining two Interfaces are going to an other Interface IC as a Input.

Also We have received Eval Kit of this Module & tested the Board using PC for Upstream & Downstream to other Internal Boards & the Application is working Fine as a Plug & Play Connectivity