I've got some ALF16N16W/ALF16P16W coming for use on the LMOSFET Mini OPS. Allied and Newark are both sources here in the US. Has anyone here used these or worked out what needs to be changed in the Mini OPS schematic, if anthing?
The datasheets are here ...
http://products.semelab-tt.com/pdf/magnatec/ALF16N16W%20ALF16N20W.pdf
http://products.semelab-tt.com/pdf/magnatec/ALF16P16W%20ALF16P20W.pdf
The datasheets are here ...
http://products.semelab-tt.com/pdf/magnatec/ALF16N16W%20ALF16N20W.pdf
http://products.semelab-tt.com/pdf/magnatec/ALF16P16W%20ALF16P20W.pdf
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Hi Carl,
The ALF devices should be drop-in replacements for the Renesas devices, I doubt any changes need to be made. Give it a try, I think it will work fine.
Aah, that was my thought as well! Thank you for confirming.
The change should 'pop up' the power capable out nicely in a very small package.
Carl_Huff pay attention to version of Alfet considering. Plastic ALF16 are to264 and ALF08 are to247. I am not sure ALF16 fit in miniOPS instead ALF08 who seems to me more direct equivalent to rensas 2sj/2sk.
Terry could you check if you use ALF16 or ALF08?
ALF16 are double die transistor => 2xALF08 in sigle package...logicaly (may i am wrong) we need to double bias current with this one....
Marc
Terry could you check if you use ALF16 or ALF08?
ALF16 are double die transistor => 2xALF08 in sigle package...logicaly (may i am wrong) we need to double bias current with this one....
Marc
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Vargasmongo3435 and his use of the mini output board made me think of something. I don't suppose this will work with bi-polars but might be useful with more durable output devices when the board or case only has room two output pairs. I was thinking you could file down the legs to fit the holes on the board and stack (piggyback) the devices so as to double their capacity. Do you think the temperature differential would become an unaddressable problem and if so, could anyone please tell me why it would be?
Jumpers. You can use them to run the driver stage off higher voltage rails (no jumper) or the same rails as the outputs (jumper'd).
The ones I used are TO-247. I can't see the markings because they are mounted under the boards.
The mini was designed around the TO-3P / TO-247 package. It would likely be possible to use the TO-264 package if you don't expect the whole device to reside under the board and are willing to space the board a little further off the heatsink.
Are there any other jumpers required due it being single sided? Thanks again!!!
Beyond those I've already mentioned, I'm not sure. I always built off my artwork and haven't etched any of OS's layouts
Thanks, Terry. I thought I remembered something like that ground wire. It's hard to remember when the thread is this long and convoluted. I received my ECC88 boards, by the way. Thank you very much. I'm 80% done stuffing. Trying to use parts box stuff, so doing a lot of resistor checking. I hope I'm not the only one with bags of unsorted resistors and capacitors. Decided to use 'em. Good thing to do while I watch baseball, (in Kansas City). Go Royals!!!
Glad to hear they made it. Fortunately there are not a lot of parts. Make sure if you are not using dc protection that you wait15 seconds before connecting any speakers.