Motor Driver : 5 Amperes

[dell]

Any motor driving ICs available for 5 ampere motor driving, with pwm and bidirectional control required. On the ST website under motor controllers i could find stuff only upto 2.8 amperes, and then directly above 30 amperes for automobile motors. Any specific recommendations?

The above is required for hobby purposes, so i can do without all the large temperature ranges etc.

[Spoil9]

Don't know what your voltage requirements are, but I was directed to Pololu for my motor controllers and so far I'm happy.
http://www.pololu.com/catalog/product/120
This is the one I picked up but they do have more for all types of voltages and Amperage.
Help this helps.
- Bill

[bens]

Do you need a continuous 5 A or are you talking about a motor with 5 A stall?  If your motor has a stall current above 5 A, what is is it?

The MC33887 motor driver carrier and dual MC33887 motor driver carrier can deliver 2.5 A continuous per channel and can handle 5 A peaks for a few seconds before overheating (you could improve this by adding a heat sink and/or improved air flow).  We also offer the TReX Jr dual motor controller, which offers a number of advanced features and is based on the MC33887.

If you need more current (e.g. 5 A continuous), you could consider the VNH2SP30 or VNH3SP30 (these are probably the 30 A automotive drivers you saw on ST's site).  We sell convenient single and dual carrier boards for these motor drivers that are capable of 14 A continuous (9 A continuous for the VNH3SP30 version) per channel with 30 A peaks.  These carrier boards are quite popular for high-current applications.  We also have several advanced motor controllers based on the VNH2SP30 and VNH3SP30 drivers:

TReX dual motor controller
SMC04 high power motor controller with feedback
Orangutan X2 robot controller

- Ben

[emmannuel]

If a motor is meant to run at 1A and stall at 3A would it work to put at say 1.5A fuse to save your parts?

[bens]

Probably not well.  You should make sure you choose parts that can tolerate 3 A for short durations if your motor has 3 A stall.  A lot of motor drivers have over-current and/or over-temperature protection built in, but in certain situations the damaging current spikes can occur faster than the protections can kick in.

- Ben

[dell]

I'm sorry i missed out on the voltages, i intend to run the motors on 15 volts, and yes, the stall current is 5 amperes (with safety margins), with running being close to 2.5 amperes. I need H bridge operation along with pwm.

[bens]

Then the MC33887 I mentioned in my earlier post would probably be your best bet.  It works up to 28 V and accepts a PWM input.

- Ben

[Admin]

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