an Idea for using DTP Boards with OSRAM LEDs

That is wonderful Lexel, if built up one-sided I can even use 2 chips and have up to 700mA regulated (mode spacing with A6-firmware should not be too bad)! I ordered 3, will check them out, and report here.

I’m not sure if I’m a rare exception: can solder very well but can’t do computer stuff. For this board I can just rob all components off a common BLF-A6 board (or BLF X5/X6 board) and that is all there is to it. :slight_smile:

I just realized that the Fet +n has wrong pinout compared to A6

it happens .
we will wait your fixed Version

Thanks for the Updates Lexel

I fixed the Fet+ n 7135 one, should be pin compatible to A6 now

Pin 6 FET pin 5 AMCs

https://oshpark.com/shared_projects/MSr9VRbY

Many thanks lexel, helpful as always :+1: :slight_smile:

Good that you noticed the mistake, ordered again :slight_smile:
Luckily Oshpark is dead cheap for these little boards…

will the OSRAM 4715AS handle a reversed BLF a6 Driver (Like lexel’s) on a DTP Board ?

Not sure, I guess it is safer to go for the 8x7135 version above without FET.

I started with 2000ma , Then 3000ma , Now FET
GREED :laughing:

In that case:go for it! :partying_face:

4715AS wont survive a FET, this is a IR LED with a forward voltage way below our white LEDs

2-3A on DTP should be possible, but FET would go >10A and boom

Black flats should work with FET

you could still cut one trace and do 2 thin wires to rewire PWM pins

A quick look on the datasheet mentions a Vf well above 3V, so this may be one of those 2xseries-die leds?

datasheet shows 3A at 3.8V this may work, but could still fry the tiny 1mm² emitter that has 9K/W thermal resistance

even our white XPL LEDs don’t like to be driven at much higher than double rated current

Has anyone received and put one of these together yet? Looking to use an osram flat black just wondering if anybody has done this combo with one of these boards yet

I have ordered them but have not received them yet. Perhaps folks in the US have them sooner than me?

So does anyone know if this is this an inverted copy of a blf a6 driver? Can I just remove all components from the a6 driver and put them on this board?

The board uses another FET size

The AMC only one is compatible to Convoy or 105 drivers

I received the inverted FET+7135 boards and will check the BLF-A6 components+tiny FET on them probably this weekend.