TPS2590/TPS2592 Hot Swappable?

Leo Champagne

Prodigy 140 points

Other Parts Discussed in Thread: TPS2590, LM25069, TPS2592BL

Are the TPS2590 and TPS2592 devices hot-swappable?

Thanks,

Leo

over 10 years ago

0 Jeffery Pfarr over 10 years ago

TI__Genius 14317 points

Hi Leo,

So, which I/O to this device are applied/removed during hot plug/unplug event?

0 Jeffery Pfarr over 10 years ago in reply to Jeffery Pfarr

TI__Genius 14317 points

Leo,

If the circuit shown on pg. 1 of the data sheet is used and IN, OUT and GND are applied/removed at the same time, then the device will function as intended without damage.

I'll see if the Load Switch Apps. folks have anything to add.

0 Leo Champagne over 10 years ago in reply to Jeffery Pfarr

Prodigy 140 points

Hi Jeff, the customer usage model is to supply protected power to their end customer plug-in boards or devces, while their own base equipment is powered on. They will also need to set a current limit in case of fault conditions, with a Latch-off feature if a valid fault condition exists. I also recommended the LM25069, but the customer prefers an internal switch device. The TPS25092BL would be a good solution, as long as it can tolerate a live downstream insertion condition. Further thoughts? Thanks, Leo

0 Jeffery Pfarr over 10 years ago in reply to Leo Champagne

TI__Genius 14317 points

Hi Leo,

The TPS2592BL is made to be used as the "hot swap" device in the figure below and is a good choice for this app.providing all the features that you describe.

The device can also be used on the power source side (not on hot plug card) and will provide load current protection, input voltage monitoring, load voltage clamping and overtemp disconnect. See page 13 in the Data Sheet.

0 Leo Champagne over 10 years ago in reply to Jeffery Pfarr

Prodigy 140 points

Jeff, thanks for confirming my thoughts...much appreciated.

Regards,

Leo

Power management

Power management forum

TPS2590/TPS2592 Hot Swappable?