Problem in LN298 and microcontroller

fatsi500 · ‎2005-04-04

Posted on April 04, 2005 at 20:59

fatsi500 · ‎2011-05-17

Posted on May 17, 2011 at 10:18

hi,

i am trying to drive a dc motor (20v) using LN298 and ATMEL microcontroller, when i try to drive the dc motor with LN298 alone (without microcontroller) it works good.

and when i try the microcontroller alone it gives the right output (testing on leds)

but the problem apears when i try to connect the microcontroller directly to the LN298.

the LN298 takes its first state from the microcontroller and then the microcontroller stops (i doesnt respond to anything after that)

i tried to put ULN2003 between the microcontroller and LN298,

i also tried to put an inverter between them,

i also tried transistors and diodes but the same problem appears each time the microcontroller stops responding after it gives the first output to LN298

can any one help please...

onlyoneliveforever · ‎2011-05-17

Posted on May 17, 2011 at 10:18

check your power supply

it seem that u don't have egnouh power

are using Batterys ??

the Vs = 20V MOTOR VOLTAGE

the VSS = 5V TTL/CMOS

[ This message was edited by: Cortex on 05-04-2005 00:30 ]