hi
-10,5 V and (I think) 2mA (VEE) 35mA (IDD)
I see a voltage inverter with max767 or something like that, but I can't find
(it gives more (-12) from +5V)
sorry for the mistakes
thanks
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| LM213xb http://forum.lcdinfo.com/viewtopic.php?f=6&t=1404 |
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| Author: | matrix0110 [ Sat Nov 05, 2005 21:36 ] |
| Post subject: | LM213xb |
hi http://forum.lcdinfo.com/viewtopic.php?t=659 Is it enough to a LM213xb display (negative voltage) thanks |
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| Author: | csaba911 [ Sun Nov 06, 2005 1:13 ] |
| Post subject: | |
You'll need at least -10 V, my crkt is is only give you -12 at no load and not more than -3-4 at 2mA load. Csaba |
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| Author: | One~Zero [ Sun Nov 06, 2005 3:52 ] |
| Post subject: | Re: LM213xb |
matrix0110 wrote: hi
http://forum.lcdinfo.com/viewtopic.php?t=659 Is it enough to a LM213xb display (negative voltage) thanks What's the negative voltage requirement for your LCD? There are plenty of simple circuits for this type of thing, but helps to know what your requirements are. Post a data sheet if you have one. |
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| Author: | matrix0110 [ Sun Nov 06, 2005 8:35 ] |
| Post subject: | |
hi -10,5 V and (I think) 2mA (VEE) 35mA (IDD) I see a voltage inverter with max767 or something like that, but I can't find (it gives more (-12) from +5V)
sorry for the mistakes thanks |
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| Author: | matrix0110 [ Sun Nov 06, 2005 8:37 ] |
| Post subject: | |
here is the datasheet: http://www.datasheetarchive.com/search. ... sType=part |
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| Author: | matrix0110 [ Thu Nov 10, 2005 18:14 ] |
| Post subject: | |
is it enough or not?? I see a schematic with max767 but now I cant find, can somebody show me? |
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| Author: | One~Zero [ Thu Nov 10, 2005 18:56 ] |
| Post subject: | |
Look at the datasheet for the MAX635-637 http://pdfserv.maxim-ic.com/en/ds/MAX635-MAX637.pdf On page 5 there is a circuit for a -10vdc out. |
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| Author: | matrix0110 [ Fri Nov 11, 2005 15:03 ] |
| Post subject: | |
thanks |
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