Young people’s first T12 (discrete component PMOS-616 T12 control board)

Circuit diagram reference

[Verification passed] T12 616 control board

I was very envious when I saw the various beef T12, abalone T12 and mini T12 shared by the big guys in the square, but I didn’t understand the C language. Had to give up.

For hobbyists like me who only use it a few times a year, there is no need for a high-end soldering station. I always believe that the most primitive things can also play the most important role, so I built a discrete component version of the 616 control board. It is basically enough for repairing toys at ordinary times.

Thanks to @jdsuchen  for providing the schematic for reference

The packaging has been changed to discrete components (except for 7805, LM358, and MOS tubes which are SMD) to facilitate welding and other newbies, and the silk screen is clear.

PMOS can use AO4411, AO4407, AO4423, TPC8109, TPC8107

It has been verified that it has a size of 6cm*3cm and can be inserted into a waterproof junction box (Aubao purchase link: 83*58*34 waterproof junction box ). With the addition of a DC521 female base and a boat-shaped switch, it can be powered by a laptop power supply. There is no need to sleep or not, just turn it off after use. Anyway, it will be hot enough to melt the tin in 8 seconds ( 19V 4.5A power supply )

The measured 12V 1.5A router power supply can also be heated, and it will melt in about 50 seconds.

IN+: DC 12~24V input positive

IN-: DC 12~24V input negative

PE: Ground wire (optional)

OUT+: Connect to T12+

OUT-: Connect to T12-

PE: Connect to T12 soldering tip shell (optional)