Re: Reliability of TI/BB DCP02 DC-DC converters
From: Spehro Pefhany (speffSNIP_at_interlogDOTyou.knowwhat)
Date: 04/06/04
- Next message: Jim Stewart: "Re: Reliability of TI/BB DCP02 DC-DC converters"
- Previous message: Vadim Borshchev: "Re: DeviceNet has 16-bit wide "octets"!"
- In reply to: Greg Neff: "Re: Reliability of TI/BB DCP02 DC-DC converters"
- Next in thread: Jim Stewart: "Re: Reliability of TI/BB DCP02 DC-DC converters"
- Reply: Jim Stewart: "Re: Reliability of TI/BB DCP02 DC-DC converters"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Date: Tue, 06 Apr 2004 17:36:11 GMT
On Tue, 06 Apr 2004 12:50:50 -0400, the renowned Greg Neff
<greg@microsym.com> wrote:
>On Tue, 06 Apr 2004 15:37:27 GMT, Spehro Pefhany
><speffSNIP@interlogDOTyou.knowwhat> wrote:
>
>>
>>Hello:-
>>
>>I'm just wrapping up a design that includes a DCP-02 12V:5V isolated
>>unregulated 600kHz DC-DC converter. Everything seems straightforward,
>>the unit is supposed to include thermal shutdown at 150°C chip
>>temperature which should typically protect the converter if the output
>>is inadvertently overloaded. This project will see wide Ta range.
>>
>>However, I've just run across a tray of bad DCP-02 units of unknown
>>origin- containing about 50 duff units, and also I recently came
>>across a hobbyist who had problems with his dying recently. This can
>>be explained away by assuming that those people were not obeying the
>>rather strict abs. max. input voltage rating (15V for the 12V units,
>>for example), but I'd sure like to know any info to the contrary.
>>
>>Thanks!
>>
>>Best regards,
>>Spehro Pefhany
>
>We don't use the specific DCP021205 that you are asking about, but we
>have used a few thousand DCP02 converters (different voltages) over
>the past few years. These are used in rail car applications, with
>ambient temperatures in the enclosure getting close to +85C. We are
>required to not exceed 50% of the load rating on any power supply or
>DC-DC converter, so we don't push them as hard as many people would.
>That having been said, we have been very happy with their reliability.
>As far as I know, we have not had any fail yet in the field, and I
>haven't heard about any fallout in production test and burn in.
Thanks a lot, Greg, that's what I needed to hear- from the right kind
of source. We won't be pushing them either, power-wise, but the Ta may
approach 85°C.
Best regards,
Spehro Pefhany
-- "it's the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
- Next message: Jim Stewart: "Re: Reliability of TI/BB DCP02 DC-DC converters"
- Previous message: Vadim Borshchev: "Re: DeviceNet has 16-bit wide "octets"!"
- In reply to: Greg Neff: "Re: Reliability of TI/BB DCP02 DC-DC converters"
- Next in thread: Jim Stewart: "Re: Reliability of TI/BB DCP02 DC-DC converters"
- Reply: Jim Stewart: "Re: Reliability of TI/BB DCP02 DC-DC converters"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Relevant Pages
|
