It depends on what you want from the driver. If you want the best, most efficient driver, get a L4P driver tuned to the proper current. If you just want it to be “regulated” and have a decent UI, you should get a driver that uses AMC7135 chips for power, PWM for lower modes, and Anduril firmware.
My mini-GT driver seems to have lost the 7135 part of the ramping after I tried the 2mm2 White Flat (it is still gone with the new led, a dedomed XP-G2). It seems to make little sense if the White Flat with its low voltage was the cause of the damage, but after what you noticed with the NANJG driver I tought it’d be relevant to mention here.
Good to hear, I did not wish to cause panic, was just sharing my observation, the damaging of the mini-GT driver may not have anything to do with the 2mm white flat.
He should just use one of these. Is it really $10 stopping it or is there an issue with driver size and the D1S. He is hopefully redesigingim it a bit for a 21700 anyway.
Thank you Hank for an update. It’s sad to learn you can’t do it, but I like your openness.
I suggest that you look at Texas Commander driver. It’s in a beta state. And may not deliver the current that you need. But using Led4Power trick of putting the FET on MCPCB should solve the issue and make it easily handle 5A, probably 8A for 2mm² variant as well. You would still have to put the work of taking it out of beta and into production…but it seems you’re more than capable of doing so.
It has to be an e-switch driver for the Emisars.
I think Lexel may have something available.
I’m still waiting for led4power’s e-switch version of his FET CC driver…
But iirc Emisar uses 20mm drivers?
Either way, i’m guessing there are a few people on BLF who would be more than happy to come up with a suitable driver and PCB layout, if Hank can’t find a solution.
Yep, the e-switch is the issue for those drivers. If the driver designers didn't take into account parasitic drain, an e-switch may never work on that driver design.
Again, our ramping UI's should work fine with a 7135 bank + 1, or even without the +1. I got NarsilM working on a FET only driver because the 7135's were constantly getting blown - yes, lots of amps for 16 XHP50's...