TMS320F28377S: DELFINO

Hi,

As far as I can understand wrt above extract, some component/controller itself is overheating, right? Which coil sound are you referring to here? Is this a custom board of yours?

Regards,
Gautam

GRACIAS POR SU PRONTA RESPUESTA, LA TARJETA ES UNA DELFINO F28377S (SOLO LA TARJETA SIN NINGUNA APLICACIÓN O CIRCUITO EXTRA), CUANDO SE CONECTA A LA PC CON EL CABLE EMPIEZA A CALENTARSE EL ELEMENTO MENCIONADO (A MI PARECER ES UN FUSIBLE), UBICADO JUNTO AL CONECTOR USB DE LA TARJETA, TIENE LA NUMERACIÓN 505C (NO ENCUENTRO EN INTERNET REFERENCIA O DATASHEET DE ESTE ELEMENTO), SIGUIENDO EL CIRCUITO SE PUEDE VER QUE DA PASO DE VOLTAJE ENTRE EL CONECTOR USB (QUITO PIN DEL CONECTOR 5Vdc) Y LA TARJETA; CUANDO LA TARJETA RECIÉN SE CONECTA LOS LEDS QUE SIEMPRE SE ENCIENDEN EN LA TARJETA TIENEN UN BRILLO MUY TENUE Y CUANDO SE CALIENTA ESE ELEMENTO SE APAGAN TOTALMENTE; MIDIENDO VOLTAJE EN ESE ELEMENTO PUDIMOS OBSERVAR QUE DE LOS 5VdC QUE INGRESAN, SALEN 4,3V CUANDO SE CALIENTA DISMINUYENDO CADA VEZ MÁS. EL SONIDO AL QUE ME REFIERO ERA PARA EJEMPLIFICAR EL COMPORTAMIENTO DE ESE ELEMENTO, ESTE ES SIMILAR AL RUIDO QUE HACE UNA BOBINA QUE TRABAJA A ALTA FRECUENCIA, ESTE SONIDO VARÍA SI SE HACE CONTACTO CON EL ELEMENTO (EN ESTE CASO PUSIMOS UN DEDO DE LA MANO SOBRE EL ELEMENTO PARA SENTIR COMO SE CALENTABA).
ESPERO CON ESTO PODER EXPLICAR MI PROBLEMA, Y GRACIAS POR SUS COMENTARIOS.
SALUDOS,
CRISTIAN.

THANK YOU FOR YOUR SOON ANSWER, THE CARD IS A DELFINO F28377S (ONLY THE CARD WITHOUT ANY APPLICATION OR EXTRA CIRCUIT), WHEN IT IS CONNECTED TO THE PC WITH THE CABLE IT STARTS TO HEAT THE ELEMENT MENTIONED (TO MY LOOKING IS A FUSE), LOCATED TOGETHER TO THE USB CONNECTOR OF THE CARD, IT HAS THE NUMBERING 505C (NOT INTERNET REFERENCE REFERENCE OR DATASHEET OF THIS ELEMENT), FOLLOWING THE CIRCUIT YOU CAN SEE THAT IT PASSES VOLTAGE BETWEEN THE USB CONNECTOR (QUITO PIN CONNECTOR 5Vdc) AND THE CARD; WHEN THE CARD IS CONNECTED, THE LEDS THAT ALWAYS TURN ON THE CARD HAVE A VERY HIGH BRIGHTNESS AND WHEN IT IS WARMED THAT ELEMENT WILL TURN OFF COMPLETELY; MEASURING VOLTAGE IN THAT ELEMENT WE COULD OBSERVE THAT OF THE 5VdC THAT ENTER, THEY EXIT 4,3V WHEN IT IS WARMING DIMINISHING EVERY TIME MORE. THE SOUND TO WHICH I REFERRE WAS TO EXAMPLATE THE BEHAVIOR OF THAT ELEMENT, THIS IS SIMILAR TO THE NOISE THAT MAKES A COIL THAT WORKS AT HIGH FREQUENCY, THIS SOUND WOULD VARY IF THE ELEMENT IS CONTACTED (IN THIS CASE WE PLACED A FINGER OF THE HAND ABOUT THE ELEMENT TO FEEL HOW HE HEATED).
I HOPE WITH THIS POWER TO EXPLAIN MY PROBLEM, AND THANK YOU FOR YOUR COMMENTS.
REGARDS,
CRISTIAN

Is the Delfino F28377S card that you're mentioning above, a TI Launchpad? www.ti.com/.../LAUNCHXL-F28377S
Direct Spanish to English translation doesn't make sense in lot of places. Anyways, does the controller itself get very hot? If its a fuse as you describe above what is the component designator on PCB?

Sometimes, replacing the components do solve the issues but you need to know what other components directly have got affected by the overheating one.

Si, es una tarjeta de TI. No he podido encontrar ese elemento que menciono en PCB o datasheet; del link que me envió, en la primera imagen de la tarjeta junto al conector usb hay un elemento de color dorado y negro, ese es el único que se puede sentir que se calienta.

Yes, it's an TI card. I have not been able to find that element that I mention, in PCB or datasheet; in the link that you sent me, in the first image of the card next to the usb connector there is a gold and black element, that is the only one that can be felt that get hot.

Please check the schematic here: C:\ti\controlSUITE\development_kits\LAUNCHXL-F28377S\HwDevPkg
Map the component and share the component description. You can go through the BOM too available in the same directory.

Regards,
Gautam

Chris,

Please confirm if you have the LAUNCHXL-F28377S. 

Please follow Gautam's instructions. Open the Schematic pdf file. Every part on the board should have a silkscreen label next to it indicating what the device is. You can look at the BOM file and find the reference to determine exactly what component/part number the failing component is.

It would also be helpful to see a photo of the board with the component circled. This will eliminate any questions as to what/where it is. 

Every component on the board is listed in the BOM. You can absolutely go out and install a replacement.

Thanks,

Mark

Hi Gautam and Mark

I think that the component referenced by chris are:

Ref: F1
Varient: All
Qty: 1
Description: PTC RESETTABLE .50A 15V 1812
Mfg: Bourns Inc.
Part Number: MF-MSMF050-2
Vendor: Digikey
Stk Number: MF-MSMF050-2TR-ND

I found that component reference on BOM :
C:\ti\controlSUITE\development_kits\LAUNCHXL-F28377S\HwDevPkg
The component is a fuse ¡¡¡¡


Regards ¡




Hola Gautam y Mark

Creo que el componente referenciado por Cristian es:
Ref: F1
Varient: All
Qty: 1
Description: PTC RESETTABLE .50A 15V 1812
Mfg: Bourns Inc.
Part Number: MF-MSMF050-2
Vendor: Digikey
Stk Number: MF-MSMF050-2TR-ND

La referencia fue encontrada en el BOM (Lista de materiales / Bill of Materials)
El componente es un fusible.

Saludos ¡

no pude encontrar esa carpeta pero en los comentarios siguientes de David Rojas menciona el elemento y toda su descripción, no podía subir una imagen antes, pero creo ya pude hacerlo; añado el mensaje enviado por David, gracias.

I couldn't find that folder but in the following comments of David Rojas mentions the element and all its description, I could not upload an image before, but I think I could do it; I add the message sent by David, thank you.

Hi Gautam and Mark

I think that the component referenced by Cris are:

Ref: F1
Varient: All
Qty: 1
Description: PTC RESETTABLE .50A 15V 1812
Mfg: Bourns Inc.
Part Number: MF-MSMF050-2
Vendor: Digikey
Stk Number: MF-MSMF050-2TR-ND

I found that component reference on BOM :
C:\ti\controlSUITE\development_kits\LAUNCHXL-F28377S\HwDevPkg
The component is a fuse ¡¡¡¡


Regards ¡

saludos Mark, si es la tarjeta LAUNCHXL-F28377S, no pude encontrar el esquemático pero en un comentario siguiente de David Rojas menciona al elemento que me refiero, espero com ese me puedan ayudar para resolver este problema de la tarjeta, gracias de antemano.

Greetings Mark, it is the card LAUNCHXL-F28377S, I could not find the schematic but in a following comment of David Rojas mentions the item that I am referring to, plus I could upload an image, I hope that you can help me to solve this card problem , Thanks.

Gracias David, ese mismo es el elemento al que me refiero, espero se pueda dar con una solución para la tarjeta.
saludos,
Cristian

Thanks David, that is the element which I refer to, I hope we can find a solution for the card.
regards,
Cristian

Ok, tell me if you will sucess.