i'm trying to operate 2 motors with a l293dne by taking inputs from m8870 dtmf decoder.. the following are my connections:
pin 1,9: 5v
pin 8: 6v (5.8 something) // i'm using motors which operate on 6 to 9v (not really sure)
2,7,10,15 : input pins (from the decoder)
3,6,11,14: connected to the motors
i've kept a 7805 to convert 6v to 5 for the enable pins and hav connected pin 8 directly to the battery (6v)..
the problem is: 1. as soon as i turn on the circuit(batt- on) without giving any inputs, one of my motor (the one connected to pin 3 and 6 ) gets started!!
// for this i hav checked my bread board twice thrice.. i observed that the pin 3 of l293dne was at some 5v..
also when i give a +5v at pin6 the motor shuts up! //
2. the motors run without enabling the l293dne (i.e. pins 1 and 9) how wierd??!
I want to be sure whether i hav burned my l293dne ?? or not? what's going on!
//apologies for the length of my query//