TF360 Power Supply Discussion

News & updates for the upcoming 68060 accelerator

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8 Bit Dreams
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Re: TF360 Power Supply Discussion

Post by 8 Bit Dreams »

terriblefire wrote: Sun Apr 21, 2019 5:20 pm
I just checked the 68060 datasheet. It recommends 2A @ 3.3v... :/
don't forget about CF's - it hangs on the TF360 card, and needs about 0,3 - 0,4A
in other hand, it is connected to the 5V rail... :roll:

Ok, what about these:
https://www.ebay.de/itm/5x-Mini-3A-DC-D ... 4007628573

or a good proven LM style?
http://www.ti.com/lit/ds/symlink/lm2596.pdf

Stephen,
grab this one for testing purposes:
https://www.digikey.de/product-detail/d ... ND/7087190
or
https://www.digikey.de/product-detail/d ... ND/9433342
if You plan to integrate it on board - easy to do!

EDIT
checked pictures of WARP540/560 accelerators - there are several solutions
1. 2x D-Pack's (seems it's for 040 CPUs)
2. onboard LM2596 replacement (switching type)
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Re: TF360 Power Supply Discussion

Post by exxos »

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Re: TF360 Power Supply Discussion

Post by 8 Bit Dreams »

exxos wrote: Sun Apr 21, 2019 7:46 pm http://www.ti.com/product/LMZ30606
This one looks very promising.. :geek:

have checked Warp540 power rails and how they solved it, they implemented power supply on PCB
D-Pack is a no go
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Re: TF360 Power Supply Discussion

Post by terriblefire »

exxos wrote: Sun Apr 21, 2019 7:46 pm http://www.ti.com/product/LMZ30606
I like this one... very interesting.
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
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Re: TF360 Power Supply Discussion

Post by terriblefire »

So my take on this might be to evaluate a bunch of different solutions with the current rev0 board and see what happens.
———
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indicates how much hurting you shall receive."
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Re: TF360 Power Supply Discussion

Post by terriblefire »

terriblefire wrote: Sun Apr 21, 2019 9:16 pm So my take on this might be to evaluate a bunch of different solutions with the current rev0 board and see what happens.
Although i'm leaning towards what @exxos posted I thought that the ISL line of chips might be worth a look. They're used in Macbook Air and Macbook Pro's from what i can tell. (not this specific chip though)

https://docs-emea.rs-online.com/webdocs ... 553803.pdf
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Re: TF360 Power Supply Discussion

Post by exxos »

There's millions of the things from various manufacturers. That particular one you posted needs a external coil. I went with external coil as I wanted to experiment, while it was a squash on my board, the cost per part is also a factor. That one I suggested was one I found on texas, I tend to use their parts in general. I didn't check any other sites.
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Re: TF360 Power Supply Discussion

Post by exxos »

mouser do a evm so you could just get that to play with...

https://www.mouser.co.uk/ProductDetail/ ... gmclBwhkkL
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Re: TF360 Power Supply Discussion

Post by 8 Bit Dreams »

Yes, indeed You are right..

Well, LM78XX installed now is to weak, that's for sure, this may be a reason for hangs and instabilities.
I recommend to buy an external 5A DC-DC converter and do measurements to see how much current card needs, then add about 1 - 1,5A just to be sure, and then look around what we can get, that's the plan..

EDIT
exxos wrote: Sun Apr 21, 2019 10:18 pm mouser do a evm so you could just get that to play with...

https://www.mouser.co.uk/ProductDetail/ ... gmclBwhkkL
It's too expensive...
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Re: TF360 Power Supply Discussion

Post by exxos »

8 Bit Dreams wrote: Sun Apr 21, 2019 10:20 pm https://www.mouser.co.uk/ProductDetail/ ... gmclBwhkkL
It's too expensive...
Its a demo board....
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
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