Please recommend a H-bridge

Anonymous

Other Parts Discussed in Thread: L293D, DRV8830, TPS54310, DRV8833

Could any one recommend H-bridge for motor control? There are many available modules, but I haven't found an ideal one:

I don't need very large current, so 600mA is enough, which is satisfied by L293D. L293D also has the smallest footprint among the four. However, I need only two outputs, satisfied by TA7257P, and L293D has two redundant pins here.

Could anyone recommend a H-bridge that meets most closely the demands?

And does there exist any "H-bridge" selection tool so one can quickly found the best match?

over 14 years ago

0 Jose Quinones over 14 years ago

TI__Expert 7455 points

Hi Garry,

Could you also tell us the voltage range for the application you need the H Bridge for? We have a fairly large number of H Bridge solutions, some of them intended for battery operation (DRV8830/32) others for higher voltages (many options here).

Do you want to drive a DC motor or a stepper motor?

Do you want to have current regulation or is this not important?

I will be glad to help you choose the perfect part for your project. Best regards,

Jose Quinones

0 Anonymous over 14 years ago in reply to Jose Quinones

some of them intended for battery operation (DRV8830/32) others for higher voltages (many options here).

It is intended for battery with below 5V voltage.

Do you want to drive a DC motor or a stepper motor?

A stepper motor motor. Voltage < 1A. Low requirement for heat dissipation.

Do you want to have current regulation or is this not important?

What is current regulation for an H-drive? Is it the same as voltage regulators (TI TPS54310)?

BTW, how many different types of H-drive does TI provide?

0 Anonymous over 14 years ago in reply to Jose Quinones

Jose,

Any update on this?

Garry

0 Jose Quinones over 14 years ago in reply to Anonymous

TI__Expert 7455 points

Hi Garry,

Sorry for the delay in answering as I was out of the country on vacation. Given these parameters I would like to recommed the DRV8833. It is a dual H Bridge with INx interface and it will give you up to 1A per phase. It has current regulation, but it is fixed by the external SENSE resistor, so you can not do high resolution microstepping. The most you could do is half stepping if you commutate the pins accordingly. However, on battery operated applications, full step is more than plenty.

Now, this device works from 2.7V to 10.8V, so the 5V requirement is met, but what you need to understand now is how low do you want the batteries to go. I would imagine it would not be as low as 2.7V, but if so, at 2.7V the device will enter shutdown (Under Voltage Protection). Just something to think about.

I am not positive how many H Bridges we have at the moment, but out of my head I can think of at least 30 devices. This is of course when you take into consideration all the possible configurations, voltage ranges, current ranges, etc. It is quite a dense portfolio!

Hope the info helps. Best regards,

Jose Quinones

Motor drivers

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Please recommend a H-bridge