Re: Power IC instead of MC33394
Blagoj Kupev <[email protected]>
| Newsgroups | gmane.comp.hardware.motorola.microcontrollers |
|---|---|
| Message-ID | <[email protected]> |
Can you please tell us used chips for 5V switched mode chip, LDO's and
POR reset chip, since you have great results with them?
Best regards,
Blagoj
Na 09.08.2005 11:44 David Brown rece:
>>Is there a IC instead of MC33394 from Freescale?
>>
>>
>>
>
>The simple answer is no. There may be a slightly more complex answer if you
>already have a design built using the MC33394 - contact your Freescale
>distributer for information. If you are in the position to need the complex
>answer, your distributer should probably already have contacted you. Sorry
>for the cryptic answer here - it's just I don't know how much information
>about this is NDA.
>
>By far the most sensible and practical solution is to forget the MC33394
>ever existed, and build your own replacement. The main features of the
>MC33394 that you need to replicate are:
>
>The CAN driver - use a standard 82c250, or similar.
>
>The reset circuit - use a Dallas/Maxim 3-pin reset device on POReset, and
>tie HReset and SReset to 5V through a resistor. The MPC5xx have perfectly
>good reset circuitry built-in.
>
>
>
>
>
>
>
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