an Idea for using DTP Boards with OSRAM LEDs

Ok, then I will have to find me someone to add firmware.

Thank you Soooo much Lexel, you saved me alot of time and effort because I was learning to use Eagle in the past 2 days
so far this is my progress :person_facepalming: :cry:

I have many Nanjg 105D Drivers, like this one

Can I install their Components on your Driver ?
if not, Could you share the Needed Components for the Driver Please, or even a Nanjg 105D .sch file would be Greatly Appreciated

Thanks :slight_smile:

I’m subbin’ this one! :crown: :+1:

105D driver should work with Tripledown layout, same pin for the 7x AMCs
R5, C1 and C2 are to filter voltage spikes from the MCU, at least R5 you have to bridge or equip with 4.7Ohm resistor

I made a Fet+ n 7135 one, should be pin compatible to A6
Pin 4 FET pin 5 AMCs

https://oshpark.com/shared_projects/MSr9VRbY

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