Things were slow at work yesterday, so……when no one was looking, I closed the office door, fired up my portable soldering iron and got busy. With no calls, or other “work” related interruptions I managed to burn up the remainder of my “work” day by building 16 new A6211 LDD-H replacement drivers. I built the first 12 to operate at 1400ma and the last 4 to run a 1600ma. I’m going to test the 1600ma version by letting them run for an extended period of time with no additional forced air cooling. Since the A6211 chip will enter thermal shutdown protection at 130C, I think that if the driver does not exceed 100C, we can call it good and I’ll release a few of them to others for further long term testing.
Here’s a photo of the first 8 completed drivers-
Here’s another showing a side view. The copper heat sinks that provide the needed cooling are visible.
007- You see this?
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280 A6211 still in the bag!
If “work” gets slow again today, I’m thinking that I’ll lock the door again, and get busy some more. LOL