Pittman Motor Control using L 298.

[emhawkable]

I am using L-293 for control of 48 v and 2-3 A current pittman motors. The ics are heating up pretty badly and burning inspite of the fact that i am using heat sinks as well. What are my best options. please suggest some fruit ful ideas!!!

 

[mister_rf]

L293 or L298?

Output Current 1 A Per Channel
Peak Output Current 2 A Per Channel

L298

OPERATING SUPPLY VOLTAGE UP TO 46 V
TOTAL DC CURRENT UP TO 4A

**broken link removed**

---------- Post added at 20:58 ---------- Previous post was at 19:26 ----------

Try to use VNH3SP30
http://www.robotshop.com/PDF/rbpol13-vnh3sp30-manual.pdf

 

[emhawkable]

I am actually using L298n to control the motion of pitmaNN MOTOR (48 VOLTS, 2.88 amps) . i am using 5 L298 ICs in parallel to drive our motor. Some times the ics work properly with 48 volts ,while some time it burns even at 24 volts!!! i have already burnt 10 L298N ics . i dont knw wats the real problem . please help!!!

 

[mister_rf]

Try to use a discrete MOSFET H-bridge motor driver.
There are some board supports up to 50 V voltage range and is efficient enough to deliver large current without using a heat sink.
Examples:
Pololu High-Power Motor Driver 36v15
Pololu High-Power Motor Driver 36v15 | Let's Make Robots!

Pololu High-Power Motor Driver 36v9
Pololu High-Power Motor Driver 36v9 | Let's Make Robots!