• State TI Thinks Resolved
  • Replies 5 replies
  • Answers 1 answer
  • Subscribers 33 subscribers
  • Views 120 views
  • Users 0 members are here
Support feedback
Options
Options
Related

Original question:

TUSB4041I: nquiry Regarding TUSB4041I USB Hub IC for Multiple Peripherals

TUSB4041I: USB Interface Support

Mahammadirfan Saiyed
Prodigy 50 points
Part Number: TUSB4041I
Other Parts Discussed in Thread: TUSB8042A

Hello ,

 

For one of the prodct we want to use USB Hub with atleast 3 downstream ports:

Port 1: USB A for Dongles, Pendrive , Keyboard etc

Port 2: USB C for Charging, Communicating , USB based speaker /Headphone/ Microphone/Audio.

Port 3: USB To HDMI or Ethernet.

 

So, will this part is okay to use ? Also let me know if any low cost and low current consumption part is available as our device will work on the battery.

 

Regards,

Mahammadirfan

  • 0
    TI__Guru**** 152670 points

    Hi  Mahammadirfan:

     TUSB4041 is USB2 hub, if you need  to support USB3, then TUSB8042A is option.

    Best

    Brian

  • 0 in reply to Brian Zhou
    Prodigy 50 points

    Dear Brian,

    Thanks for the quick response. I hope this are the lowest cost device.

    Other than the cost the critical parameter for our product is Current consumption when active/idle/sleep modes as our product working on the battery.

    From the datasheet I got the below details:

    TUSB8042A : Active Max current is 680mA while TUSB4041 : Active Max current is 225mA while in SMBUS mode both are very high. so, need low current and low cost device.

    I don't have considered the device current consumption which will be connected to the downstream ports.

    Regards,

    Mahammadirfan

  • 0 in reply to Mahammadirfan Saiyed
    TI__Guru**** 152670 points

    If no USB3 needed, then TUSB4041 should work, but all TI hub has high current in SMBUS mode.

    Best

    Brian

  • 0 in reply to Brian Zhou
    Prodigy 50 points

    Dear Brian,

    If I use only I2C then will it reduce further or not ?

    Any other part with less current if I use only 2 Downstream Ports ?

    Regards,

    Mahammadirfan

  • 0 in reply to Mahammadirfan Saiyed
    TI__Guru**** 152670 points

    Hi Mahammadirfan:

       Sorry for confusion in SMBUS mode

       After power on reset, hub will be in SMBUS configure mode and hub upstream port will not be connected to host until  cfgActive bit is cleared in register F8.

    The high current is only happened in SMBUS configure mode and current  will be normal after hub existing configure mode.

       In I2C mode,  1.1v current will be also high during power on sequence when GRSTz is low.

    Best

    Brian