Lpc2000

Thanks for your last reply Robert. It's great to know whats going on in 
the factory, and its great to be able to change my design from 8 bits to 
32 bits.

But here's another question:-

The spec sheets for the LPC series states voltage from 3.0 to 3.6, but a 
look at the Tadiran site show that Li battery voltage at higher 
temperatures and low current can get almost up to 3.7 volts

How goes the lpc series on these voltages?

Thanks

Owen Mooney

Please keep it below 3.9V 
3.7 Volt has a similar effect as 90 degrees C, it is outside
specification and will eventually reduce the life of the device from a
typical >> 20 years to may be 20 years.

I did not check this statement with our quality department but I do
have a pretty good understanding of the processes.
The process can tolerate 3.7V 

By the way we will update the specification for Vbat. Right now it is
3.0V to 3.6V, it is going to be 2.0V up to 3.6V, extending the battery
life a lot. We measured function of the RTC down to approx. 1.5V but
with tolerances and temperature bahavior, 2.0V seems a save bet. 

Robert

--- In lpc2000@yahoogroups.com, Owen Mooney <ojm@s...> wrote:
> Thanks for your last reply Robert. It's great to know whats going on in 
> the factory, and its great to be able to change my design from 8
bits to 
> 32 bits.
> 
> But here's another question:-
> 
> The spec sheets for the LPC series states voltage from 3.0 to 3.6,
but a 

> look at the Tadiran site show that Li battery voltage at higher 
> temperatures and low current can get almost up to 3.7 volts
> 
> How goes the lpc series on these voltages?
> 
> Thanks
> 
> Owen Mooney

--- In lpc2000@yahoogroups.com, Owen Mooney <ojm@s...> wrote:
> Thanks for your last reply Robert. It's great to know whats going on in 
> the factory, and its great to be able to change my design from 8
bits to 
> 32 bits.
> 
> But here's another question:-
> 
> The spec sheets for the LPC series states voltage from 3.0 to 3.6,
but a 
> look at the Tadiran site show that Li battery voltage at higher 
> temperatures and low current can get almost up to 3.7 volts
> 
> How goes the lpc series on these voltages?

Is there a reason that you need to use a Tadrian battery?  There are
other manufacturers of batteries that do everything the Tadrian
batteries do and don't rise to such a high voltage.  

Of course, I don't know exactly which cell you are using or what your
requirements are, but I have looked at many Li cells and few rise to
3.7 volts under spec'd conditions.