The board will definitely draw a lot more current when writing to flash.
Maybe you're writing to flash a lot? Logging to flash?
From: "Stephen Queen" <>
Date: 2007/04/09 Mon AM 09:01:46 EST
To:
Subject: Re: [ts-7000] VReg Getting Hot
On 09 Apr 2007 04:32:06 -0700, Taj Morton <> wrote:
>
> Hi All,
> I've got a TS-7200 that I recently bought. It works fine, but the vreg
> I'm using gets _very_ hot while using it (e.g., it will burn you). The
> VReg is a ST Microelectronics LD1084D2M50R (5V, 5A) The product is
> listed at: http://tinyurl.com/37x7fk
> The datasheet is at: http://www.st.com/stonline/books/pdf/docs/9035.pdf
>
> I've tried 2 vregs so far, (both the same model), and the same thing
> happened to both of them.
>
> I don't have anything running off the board yet. I had a CF card
> plugged into it, but removing it changed nothing. Any ideas?
>
> Thanks!
> - Taj
>
P=E X I (Power = Volts X Current)
The TS7200 draws 450ma from a 5v supply. So if the voltage into the
regulator is 12v then the drop across the reg is 12v - 5v =7v. If the
voltage across the reg is 7v, then the power being dissipated is 7v X 450ma
= 3.15 watts. That could be causing the regulator to be feeling hot. What
are you using for an input voltage?
Stephen Queen
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