After seeing the MY994X series of chips that MrPackHead, thank you for the inspiration, was working on and since I need something like them for my display I decided to look into building an 8 channel 12-48VDC DMX LED PWM dimmer based on the chip set. Let me be up front and say I don't know yet if I will build it and if I do I don't know if I'll make it available. There was so much unrest about the 44 project that I really don't want to end up in a mess as well. We'll take this slowly first seeing if I built some prototypes and then decide where we go from there.
One of the reasons I looked into building these is because I'm trying to keep any 120VAC out of the display area where anyone can get to it so all of my props will be DC powered and all the power supplies will be located in a safe area and well grounded. To do this I needed something less expensive controller than the LOR CMB16D-QC to run my HolidayCoro singing Pumpkin, Monsters and Trees or any other non pixel props I build. So to that end I rebuild cheep LED AC half wave strings so they run on DC. My singing props will run from 48V power supplies which allow me to use 14 3.4V LEDs in series and even more of the 2V LEDs. As an example my HolidayCoro Pumpkin takes less than 1/2A at 48V. One nice thing about using converted strings, these is only about 1/3 of the wire on the back side of the Pumpkin compared to using AC strings.
Back to the board, it will accept power from either a direct connection or through P-DMX and I even tossed in an extra two jumpers incase one want to use pins 3 & 6 for additional power, aka, JR's standard for PixelNet. It does not support the HolidayCoro power standard as it's just too different from the others and I didn't want that many jumpers.
I designed the board with two mounting hole patters. One for the TA200 and the other for the CG-500 or CG1500. I didn't do the CG-1000 which uses the old hole pattern. When used in a CG-1500 there should be room for 3 boards and a power supply or 6 boards although I really can't see having 48 channels in in a single enclosure. The whole point of the TA200 is to get the controller at the prop with as few cables as possible.
One might be able to make this cheaper using a PIC chip but the MY994X series has gamma adjust which should allow for better LED dimming.
Here is a drawing of the proposed board installed in a TA200. I'll post more if I continue with this.