Hi JMMN,
Thank you for your helping, the thing is now the board works, I knew what mistake I made. I used 0.022uF cap in pull-down between TUSB2046 and TPS2044, it is actually 22nF, not 22pF. This is how my test failed. Overall, its not the mistake happened…
Please check TPS2044, TPS2048, TPS2054 and TPS2058.
For TI's policy, I will first click resolved button.
If you have any other concern, contact me any time.
If you think resolved, please help click 'Issue is solved button'.
Thanks.
Part Number: TUSB2036 Other Parts Discussed in Thread: TPS2042 , TPS2044 , When I connect my USB Hub to usb port on a mac, I receive notification "USB Devise disabled" like this
The schematic is show here.
How should I fix this Schematic?
Please…
Part Number: TUSB2046B Other Parts Discussed in Thread: TPS2044 , The hub is recognized by windows computer, and I am able to connect sacn disk usb drives, a logitech mouse, and an amazon basic keyboard, but when I connect other devices like a kingston…
This is external power reduced to 5V.
This is LDO regulator connected from +5V USB upstream power
I connected +5V_BUSIN0 from USB_upstream power and +5V_BUS from 5V regulator together and provided to Power distribution switch (TPS2044).
There are…
I get a Unknown usb device ( Decide Descriptor Request Failed ) on Windows 10 device manager. There are two downstream devices connected and 5 open USB ports, but they never get power since the PWR on signals to the TPS2044 parts never go active ( low…
Part Number: TUSB2077A Other Parts Discussed in Thread: TPS2044
Hi Sirs,
Sorry to bother you.
Could you help to double confirm TUSB2077 schematic as attachment.
Thanks!!
Hello Peace,
The note recommends TPS2041B over TPS2024; and then, apart, recommends TPS2044 B over TPS2044.
So it is okay to use TPS2044 B for your TUSB2046B application.
Regards,
Jorge
Part Number: TPS2041B Other Parts Discussed in Thread: TPS2044 , TPS2044B , TPS2043 , TPS2042 , TPS2041 , TPS2046 , TPS2045 , TPS2052 , TPS2051 , TPS2054 , TPS2057 , TPS2055 Hi team,
TPS2041B is a single port 0.5A USB current limit switch with typical current limit…
I have tested 5 out of 100 boards and they all behave the same. Attached below is the USBView capture of the Hub descriptors - there are 4 devices under the Hub that show as Unknown Devices - all fields for those 4 devices are zeroes.
The only part…