UCC28950: apps notes on master/slave for the ucc28950 controllers in a poly phase approach and operation at low temperature

Shawn Workman

Genius 15570 points

Part Number: UCC28950

A few questions:

1) do we have an apps note on master/slave the ucc28950 controllers in a poly phase approach?

2) can the ucc28950pwr actually consistently operate at-40C?

3) what would be the cause of slow startup at -40C?

4) do we make a -54c to 125c option?

over 5 years ago

0 Teng Feng over 5 years ago

TI__Genius 13660 points

Hi Shawn, an expert will get back to you tomorrow. thanks. —— Teng

0 Bliss Zhou over 5 years ago

TI__Expert 3470 points

Hi Shawn,

kindly please review the answer as below.

Q1：If you want to synchronize three or more UCC28950, please refer to the attachment. If you just want to synchronize two UCC28950, Please refer to chapter 7.3.15 of UCC28950 datasheet.

Q2: Yes, UCC28950 can work at -40C. Wide Temperature Range –40°C to +125°C

Q3: Can you describe your question detail? I am worry I didn't clear you fully.

Q4: we don't recommend UCC28950 work continued at -54C.

Synchronizing Three or More UCC28950.pdf

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UCC28950: apps notes on master/slave for the ucc28950 controllers in a poly phase approach and operation at low temperature