TPS2663: How to use TPS26630 for 110V DC application using external additional circuit ?

Hi Saravana Kumar,

Thanks for your interest in TPS2663 eFuse. This device can not be used for 110V DC operation as it has 60V integrated Power MOSFET and the device will get damaged due to over voltage stress (110V) during conditions such as power up, output short circuits, etc.

Regards,

Dilip

Hi,

Here with I have attached the screenshot of another TI product which is supported till 60V.

They have given the application note to use it for 110V DC using the external resistor network.

My question raised based up on that product. Is there any similar possibilities to available for TPS2663?

Thank you.

Regards,

S.Saravanakumar

Hello Sarvanakumar,

For operation with 110V DC, an additional liner regulator or similar circuit would be required at input of TPS2663 to bring down the voltage to 60V. This additional circuit would dissipate significant power.

You can find reference designs for 110V DC input with other TI Devices from below link:

http://www.ti.com/reference-designs/index.html

Hi,

Thank you fro the feedback.

As mentioned in the above screen shot, I can use the similar circuits and bring down the voltage from 110V DC to 60V DC.

Just one more clarification, that circuits can be used for 110V AC applications also...Will TPS2663 can be supported that too also...?

Thank you 

Regards,

S.Saravanakumar

Hello Saravanakumar,

The screenshot only shows the title of the document. Can you please share the link from ti.com for this document?

Hi,

Please find the same in the below link,

http://www.ti.com/lit/an/slla382a/slla382a.pdf

Thank you.

Regards,

S.Saravanakumar

Hello SarvanaKumar,

The appnote describes bringing down high voltage (48, 110, 240) to a lower value by using resistor divider. There is not much current flowing through these resistors (<5mA) since this circuit is only used for sensing and not for taking power from high voltage source.

With this circuit, you would be only withdraw 2-5mA from high voltage source.

Hi,

With the above application note, even if you change the part nos to withstand the high voltage source handling.

TPS2663x will not drive the 110V DC supply voltage. Is this your feedback ?

Thank you.

Regards,

S.Saravanakumar

Hello Sarvanakumar,

Can you please share the block/circuit diagram of design that will be used with TPS2663 for high voltage input (110V DC)?

Hi,

Currently, we don't have any circuit/block diagram for TPS2663x for 110V DC application.

Since, we didn't have any confirmation from TI for 110V DC application.

Regards,

S.Saravanakumar