Lexels driver compilation

driver is quite easy removing one trace and wire it separately from the input resistor

looking at the lantern Anduril config file it seems it uses only one ramp register and rest is done with separate tint mixing code
so replacing that should be possible but has to be tested

Ok, I just ordered the mf01 so I’ll PM you when I received it, thanks.

Lexel, the 12mm drivers are populated single sided or double sided?
Also, they work with both Anduril and Bistro UI?

Thanks in advance!


bottom side has a cap and 2 resistors but it plays no role if used with a spring or button

Lexel, what is the MOSFET in 12mm drivers?

Thanks for your reply Lexel!
If it works, I will use the driver in a sort of “piggy back” way, incorporated in the structure of this driver:

It will be connected to the PCB and to the switch it has there. For your explanation, could I use it without those 3 pieces on the bottom side in this configuration? I am concerned about the small space I have to fit the driver on that hole…

LFPAK33
Nexperia PSMN2R4

AMCs are even thicker than those components, if you are concerned about total battery length then use no button and solder just a wire in the hole

I see, thx for the info.

24mm 2-4S buck driver

20-25mm 1S/2S special order with smaller component boundary

Hey Lexel, i made payment 23rd May and last mth 16 Jun you said you should have them out soon. It’s been another month, and been messaging you past 2 weeks with no reply. Can you let me know what is going on?

Lexel,

I want to upgrade my L6. Will your 30mm buck driver work with 3 LifePO4 batteries (9.9V)? Additionally, is it current regulated? Can it be pushed to 9 amps?

I wonder if anyone can help me identify two Lexel drivers.

I ordered one for a ThruNite TN42 and one for a ThruNite TN40S, and I’ve managed to get them mixed up. :stuck_out_tongue:

My TN42 is a single XHP35 HI emitter. My TN40S is four X-PL HI emitters.

I ordered these drivers several months apart, and they are slightly different in physical layout. They each have some unpopulated components.

I am not very knowledgeable in driver design. One obvious difference I can see is the values of resistors 8, 9, 10, and 11 on the non-spring sides. Perhaps that’s an easy clue?

I am currently out of town and have no DMM, clamp meter, or power supply. Can anyone tell which is which solely by physical differences?

Click the photos for a larger view.


The one on the left can do up to 8A: https://i.imgur.com/AX3spfp.jpg

What differences are you seeing?

IDK, you might need Lexel to answer.

Are they both 12v boost drivers?
Probably Buck drivers.

I’m basing it off the resistor bank above the… can never remember what it’s called.

Circled in these images: TN42 Lexel drivers - Album on Imgur

So your saying the R51, R100, R100 combo coresponds to it being an 8A driver meaning it’s the one for the xpl’s.

The other driver with the R51, R330, R330, R330 combo corresponds to it being a 2.5A driver so that’s the one for the xhp35?

I was just going off the description in the first post; my understanding is that the TN42 was always XHP35, so yep the white driver for boost - but my reading off what Lexel has written is that the black one is for the TN42, or a TN40S that has been modified to run XHP35s.

But you’re right - for a definitive answer, only Lexel can really answer.

Thanks for the replies! :+1:

Ideally, I’d do some bench testing, but as I mentioned I’m currently away from my tools.

I’ll wait for a definitive answer before proceeding. Thanks again!

I found a picture of a high amperage buck driver Lexel made and its using the same 3.3uH inductor. What driver do I need to run an XHP70 or 70.2? - #7 by Lexel

So maybe he uses the 100uH for the lower amperage drivers? (Correct)

The sense resistor bank is very similar between those two drivers with 0.025 and 0.035. So I don’t think thats a good indicator of which is which.

That’s all i can find. Nothing conclusive.