While doing a project with 2 stepper motors I ran into a problem: the temperature of the L293D’s IC’s on my motor driver shield was too high. The fix: I’ve added a heatsink to each IC.
- Aluminum heatsink (got mine from an broken computer power supply)
- Thermal conductive glue
- L293D chip
- Vice and Saw (had to cut the heatsink from the PSU to fit)
Fix the heatsink in the vice and cut it to the needed dimension.
Use a file to polish the margins of the heatsink.
Remember where pin 1 of the IC is placed.
Put some thermal glue on the IC, place the heatsink and wait the recommended time for it to dry (5-8 minutes in my case).
Use the marker to make a sign on the heatsink of the IC’s pin 1.
Enjoy the improved IC !
Feel free to contact me with any questions/advice.