LM25148 12V Motor supply

[Ax2Electronics]

Changes to be implemented on initial design:

• [ ] I: PI filter on supply input:

  1. Place 2.2uF high power Filter inductor
  2. Place 0.47uF 50V Filter capacitor
  3. place 330uF 50V Electrolytic Alu dumping capacitor with ESR around 0.082mOhm

• [ ] II: Remove 2 10uF input capacitors and add 4 100nF 50V capacitors

• [ ] III: The switching inductor needs to be changed to 2.2uH if possible, to stay on the safe side.

• [ ] IV: Check in WCA if the option with 2 parallel mosfets can be used for better power handling.

• [ ] V: Add 0 ohm resistors on mosfets gates.

• [ ] VI: Add placeholders for RC filter on current sense lines

[Ax2Electronics]

IV: Option with 2 parallel mosfets, if calculated correctly, will lower power dissipation from 6.5W to 4W - the decision is to update the schematic with additional 2 power fets but to leave them unpopulated.