Shared Projects by MTN

11mm Version that I forgot to share a LONG time ago with the 10/12mm versions.

A small FET driver intended for a lot of the small twisty lights out there. Here are the differences from the other MTN-10/11/12DD drivers:

• No copper around ground ring on component side. This makes isolating a twisty light much easier.
• Different milled shape makes installation in a lot of the tiny twisty / clicky lights easier with less filing.

For a clicky light, if the battery tube does not touch the driver or you can’t solder to the pill, then this is not a good choice because you will have a difficult time getting a good ground.

The regular MTN-11/12DD is much better in these scenarios due to the exposed copper on the component side of the driver.

Useful for programming the ATTINY25-MU MCU (also can be used for the 45/85 variants)

• Standard header pins will fit and work
• Programming pins labeled for easy hookup

Originally designed by Mattaus the the BLF community, I have made some updates to the design:

• Added a single 7135 (ML) controlled by a secondary PWM channel (Pin 5)
• Added an LDO option for 2S momentary use (LD2981 / MIC5235 / LT1761 / TS5205)
• Changed voltage divider feed to Batt+ so that LVP with 2S+ cells can work
• Changed “star” designations to MCU pin designations
• Wider 7135 pads for easier soldering
• Slightly changed location and diameter of through-hole vias for easier use