Hi Adrian,
When supplied from USB, there is no 0.9Vdc from VBGAP capacitor (C56). When on external supply there is 0.9Vdc, however USB port is not working.
Is there (U10 - TPD4E004 4-Channel ESD-Protection Array) USB protection issue?
Thanks.
Other Parts Discussed in Thread: MSP-TS430PN80USB , TPD4E004 , MSP430F5529 , SN75240 Does anyone know where I can get the dimensions for a 6 pin SON (DRY) footprint for the TPD4E004? I am laying out a PCB for the MSP430F5529 and wanted to add ESD protection…
Hi Jimmy,
Yes, a TVS diode would be placed between the PHY and the connector.
It is common to place the TVS diode between the magnetics and the PHY.
A part like the TPD4E004 is a good choice for Ethernet: www.ti.com/.../tpd4e004
Best Regards,
Other Parts Discussed in Thread: TPD4E004 , MANDO I was working with Launchpad TMS570LC43x when suddenly there was a desconecion not perform and observe the LED 7 having the Launchpad no longer turn on and my computer did not recognize the launchpad, not…
Ok, hang on.. if this device is supposed to be self-powered, I'd expect to see 5V somehow channeled into VBUS, is this correct? I see on the MSP-TS430PZ100USB board that the VBUS has a tap into an TPD4E004.. is that to feed that chip with 5V?
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Other Parts Discussed in Thread: TPD4E004 , TM4C1294NCPDT , SEGGER , RM57L843 , TPS2553 Dear community,
I've an RM57Lx LaunchPad and one HDK. Previously the Launchpad and the HDK worked fine. Unfortunately, the Launchpad cannot be connected since this noon…
Thank you.
We are using a noise simulator(INS-AX2), a cable from this simulator is wrapped around the MSP430 USB module and tested. The test level is Volt:500Vpk, pulse width:50ns, pulse duration:20ms. We are investigation if this is as per the USB spec…
> is this valid for recent MSP430F55xx devices? It's fine. In addition, attach 220nF capacitor to Vusb pin. The TVS diode array, TPD4E004, is fine when the USB power domain on the MSP430 is supplied by on-chip 3V3 regulator, sourced by VBUS pin. Usually…