Thanks for the pics comfychair.
Parts info:
- The popular QX9920 buck controller as we’ve seen on a lot of controllers. Marked LEDA 1328.
- Two tiny 8205S N-Channel FETs (with a ridiculous pinout, is that normal for the SOT-26-6 footprint?). This is probably the same FET configuration we see in the “new DRY” driver, the lightmalls driver, and probably others. Note that these FETs are not in parallel, the capacity cannot be added together.
- IC marked 00VM - probably the modes chip. Also that’s probably a batch code or whatever, not the name of the IC.
- R100 sense resistor
- Diode marked 39 12 - I assume that this is a 3A diode.
- As usual there is a zener present to support the QX9920, it’s next to the IC marked 00VM.
As pointed out by the IOS listing, this driver has no low voltage protection. Running 3s into an XM-L will let you pull the cells down to a very low voltage with a low current draw from the cells. I suspect that some protection circuits may not trip. (I’m a pessimist.)
This driver seems very similar to the Lightmalls one I linked above which ohaya has put a bunch of work into (component pics on second page).