On 23/05/2011 17:35, Michael Watterson wrote:
> On 23/05/2011 11:44, Michael Watterson wrote:
>> Maybe because it's Monday.
>>
>> I'd like octal PNP driver to switch up to -40V for VFD from PIC.
>>
>> Like a ULN2803, except PNP. Run common off +5V, and collectors all to
>> -24V via 100K ohm.
>>
>> Anyone know of a cheap easily available part?
>>
>> I don't see a pnp version of a ULN2803, I can just use 24 BC557 or
>> 2N3906 PNP etc...
> Closest I can find is a Quad Telecom relay driver DS3628 (not ideal, 4x
> BC557 is more use!)
>
> No-one any idea of octal PNP transistor array with at least -30V rating?
> (Telcom rated parts fine).
>
>
>
Well changed plans, I'll use a +24V supply and these TD62783AP  high=20
side source drivers..

But don't be shy of telling me if you find an octal driver similar to=20
ULN2803, but PNP, i.e. a simpler octal version of DS3628

--=20
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