Re: help on LM2576 with minus (-12v)
- From: Spehro Pefhany <speffSNIP@xxxxxxxxxxxxxxxxxxxxxxx>
- Date: Sun, 14 May 2006 10:17:43 -0400
On 13 May 2006 21:49:23 -0700, the renowned xuzhenxz@xxxxxxxxx wrote:
help needed.
i use the exact circuit (figure 10) in the manual of LM2576, but cant
get the output of -12v
the power supply is 24v with the max amp of 5amp, when it turns on the
chip get hot and the power supply get overloade with a high amp of
about 3.5amp.
is there any one can help on this?
THanks.
This kind of circuit has a very high startup current, and if your
power supply actually limits at 5A as opposed to that being the rated
capacity it may not start reliably.
Best regards,
Spehro Pefhany
--
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Embedded software/hardware/analog Info for designers: http://www.speff.com
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