Quote Originally Posted by John S View Post
I have 3 of these but not tried them yet.
They were bought for a very simple application so I'm hoping they will be OK. . . . .
Having begun my investigation I must give my first words of warning. This tip may apply to any of these monolithic drivers from any vendor; domestic or overseas.
To check out the reverse side of the board it was necessary to remove it from the (reasonably proportioned) heatsink. Unfortunately I found just the barest smear of heat conductive compound where the TB6560 is fixed to the heatsink. I would recommend anyone buying ready made drive units to check this and, if necessary, apply enough to get maximum thermal bonding. The thermal compound costs pennies yet might save you pounds and all the hassle of down-time.