hi im running a dc 12 water pump with ~15V with pwm from a pic.
im using the l298 for it, and its in parallel mode (until 4A), i made a small board for the l298 (schematics attached), and this is my first time driving big motors, now the l298 get very hot even at 20% by the pwm (i cant touch it for more then a second) so is that normal? and i must use a heatsink? and if i do i would like it to be a small as possible so how would i know what big enough?
olso any comment on how to improve the circuit will be great, cus i made it up by myself from date sheet i dont know if its the best way....
thanksss
im using the l298 for it, and its in parallel mode (until 4A), i made a small board for the l298 (schematics attached), and this is my first time driving big motors, now the l298 get very hot even at 20% by the pwm (i cant touch it for more then a second) so is that normal? and i must use a heatsink? and if i do i would like it to be a small as possible so how would i know what big enough?
olso any comment on how to improve the circuit will be great, cus i made it up by myself from date sheet i dont know if its the best way....
thanksss
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