Question Anything wrong with connecting L298Ns in parallel? --- Answer Nothing wrong. Hobbyist do it. Engineers can also do it. It also depends on cost/benefit/risk hobbyist/engineer trade offs. Let me explain, starting with ULN2803, then L298N. *Part A - ULN2803A Case* [ULN2803A Darlington Transistor Arrays - TI][1] 3 Description The ULN2803A device is a 50 V, 500 mA Darlington transistor array. The device consists of eight NPN Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads. The collector-current rating of each Darlington pair is 500 mA. ***The Darlington pairs may be connected in parallel for higher current capability.*** --- *Part B - L298N Case* [L298N Datasheet - ST][2] By the same ULN2803 token, L298N can also parallel output for bigger current. Since the BJTs in parallel are from the same die, so they should self balancing out their currents. --- [![l298n 1][3]][3] --- [![l298n 2][4]][4] --- Part 3 - L298N Dual Full Bride DC Motor Driver Module Case [1]: https://www.ti.com/lit/ds/symlink/uln2803a.pdf?ts=1616825443744&ref_url=https%253A%252F%252Fwww.google.com%252F [2]: https://www.st.com/resource/en/datasheet/l298.pdf [3]: https://i.sstatic.net/3XMSr.jpg [4]: https://i.sstatic.net/wRe9r.jpg