For parts have a look at this driver which started it 17mm & 20/26/27mm single-sided DD/FET driver release: A17DD-SO8 / A20DD-SO8 / etc
You just need a smaller FET and a 7135 chip.
For parts have a look at this driver which started it 17mm & 20/26/27mm single-sided DD/FET driver release: A17DD-SO8 / A20DD-SO8 / etc
You just need a smaller FET and a 7135 chip.