Recommendation for 5 V, >2.5 A supply brick with 2.1 mm barrel jack (center positive) power supply

Question

I purchased an AWR1843BOOST automotive radar sensor evaluation module. The power supply must be purchased separately.

The specifications say I need a 5 V, >2.5 A supply brick with a 2.1 mm barrel jack (center positive).

I am unable to decide if it is a DC supply or AC and if 5 V, 3 A is enough or if 5 V, 5 A will be needed. How do I decide?

@winny I need to purchase power adapter, can you point to some example that fits this criteria. I am not an electrical guy. — Pankaj Sejwal, Jan 13 '23 at 06:57
It is 5VDC and the rating has to be >2.5A so either 3A or 5A is okay. You'll have to check the jack dimensions and polarity. Product recommendations are off-topic here. — Spehro Pefhany, Jan 13 '23 at 06:58
@SpehroPefhany It has cost me a lot of money to buy and wrong supply will burn it. It is requested that some product is recommended. I don't have money to purchase it again. — Pankaj Sejwal, Jan 13 '23 at 07:01
This is a product usage question. If documetation is unclear, ask the manufacturer. — Justme, Jan 13 '23 at 07:04
Any power brick supplying 5VDC >2.5A would suffice. As Spehro said, either 3A or 5A, or any other one with an amperage >2.5A are fine. — Velvet, Jan 13 '23 at 07:04
5.5 mm / 2.1 mm barrel jacks are fairly standard and should not be hard to find. — StarCat, Jan 13 '23 at 07:05
@Velvel The polarity must be correct, so not all power bricks have correct polarity. — Justme, Jan 13 '23 at 07:06
We do not recommend specific products because an item that is readily available to me probably won't be available to you (and something I would buy would work on 120 VAC while I suspect you have 240 VAC available.) And a product I recommend today may not be available next week. — Peter Bennett, Jan 13 '23 at 07:07
@PankajSejwal You might want to check out the TI support forums. — Velvet, Jan 13 '23 at 07:09
Does this answer your question? Choosing power supply, how to get the voltage and current ratings? — winny, Jan 13 '23 at 08:28

score 3 · Accepted Answer · answered Jan 13 '23 at 06:58

3

That's going to be DC (AC wouldn't have a 'positive') and 3 A should be enough if it's calling for a 2.5 A supply.

answered Jan 13 '23 at 06:58

GodJihyo

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Recommendation for 5 V, >2.5 A supply brick with 2.1 mm barrel jack (center positive) power supply

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