From: Spehro Pefhany
Subject: Re: Design for long interval timer
References: <email@example.com> <firstname.lastname@example.org> <3DEE0CAB.email@example.com> <3DEE14A6.firstname.lastname@example.org>
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Date: Wed, 04 Dec 2002 15:08:40 GMT
NNTP-Posting-Date: Wed, 04 Dec 2002 10:08:40 EST
On Wed, 04 Dec 2002 14:43:10 GMT, the renowned Fred Bloggs
>I just went to Fairchild and entered MC14541 in parts search, it
>returned 0 results...????
Ah, you often drop the leading 1 when looking up Motorola original
part numbers at other places (except On, of course).
>> I just cracked the case on a Radio Shack #23-406 NiMH charger,
>> and it indeed contains one of these chips. The charger works fine,
>> BTW, it's a timer plus a number of current sinks.
>Maybe it does and maybe it doesn't.
The 'charging' LED indicators always seem to be in the appropriate
state, which tells me the timer is doing exactly what it should.
It's a 4 hour charger, BTW.
> Can you tell us how they have the
> timer configured- there are so many options?
Not right now, I'll try to trace it out later in the week. It's
not a very nice construction for casual examination- flat cables
that will fatigue off easily connecting two PCBs in rather cramped
conditions. Designed for manual China manufacturing.
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