Motor driver ICsBAB / BABFP-YFMeasurement circuitsFInput / output truth table datasheet search, datasheets, Datasheet search site for Electronic. BAB datasheet, BAB circuit, BAB data sheet: ROHM – Reversible motor driver,alldatasheet, datasheet, Datasheet search site for Electronic. The BAB and BABFP-Y are reversible-motor drivers suitable for brush motors. Two logic inputs allow four output modes: forward, reverse, idling, and.

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Is it possible to measure the current through the motor either while measuring the current through the resistor or under the same conditions? BTW, 50 ohms also get too hot. I would run it in one direction and not reverse it, then measure the current. If you had a plus and minus supply I would suggest you use a power op amp.

Be sure to confirm that the back-rush voltage will not adversely affect the operation of the IC. Take that ohmmeter you used to measure the ohms of the motor and put it on the Ampere scale or milliamp scale and measure the current flowing through the resistor. If I use 50 ohms, the current is not enough to drive the motors.

BA6219B Datasheet PDF

B6219b, clarify if the output is supplying 12V or 18V. The power op amp would do this internally but perhaps being a “can package” it might be easier for you to dissipate the heat. Then take the supply volts and divide that by the total ohms.

In such a case, place a diode between the output and ground, or other measure, to prevent this If so at high speed? Two logic inputs allow four out- put modes: No wonder it is hot.


Resources Digital Transformation may be defined in a number of different ways by analysts or enterprise software vendors. Your RMS current in the motor, I would think would lead to decreased motor life. It is cold enough to touch. You datasheey probably need high watt RES without chopped drive.

So one would wonder what the resistance of your load is. The motor revolving speed can be set arbitrarily by controlling the volt- age applied to the motor. Copy your embed code and put on your site: You never did state the motor manufacturer.

I’d feel better about giving advice if I worked this all out but unfortunately I don’t have the time right now. So, where is my mistake. One thing you should note is, with the 18 volt supply you have chosen, any linear device you use will have to drop the difference between the 18 volts and your load voltage. It needed bulky current limiting resistors.

Therefore recommended to place a current limiting resistor or other physical counter- measure. Register now while it’s still free! The current thru’ the resistor I measured is 0.

Download Now Defense manufacturing is all about project manufacturing and project accounting. The current to the BA is too low. Some motors have very low resistance when measured at disconnected. You already know the effect and problems with each approach. Visit the link with datasheet for BAB. OK, let me tell all the information: Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.


In other words, how long are you in forward mode and how long in reverse? The motor resistance is 12 ohm when I measured. Control of DC Motor Driver – Help Yanco, I think before much more time is spent head scratching trying to understand what you have and what you are doing, you need to tell us something about the motor. Is the motor capable of handling this indefinitely?

ROHM – datasheet pdf

By joining you are opting in to receive e-mail. CD1 and CD2 are oscillating when motor forward and reverse. It appears that the motor driver is BA datashewt BA Should not that read 18 V voltage across 20 ohms?

RPM freeload iscurrent 0. The Pin 4 is connected to a Variable Eatasheet of 10 K. There are no circuits built into these ICs that pre- vent in-rush currents.

Is it a steady current? BAB datasheet and specification datasheet Download datasheet. We call this ‘dead-time’. If you have one, put a scope CD1 and CD2 and find out what they are doing. In a very very very quick read of the data sheet, it appears Rc is used to limit current for the unit if dataseet output is shorted. It appears you do not have enough torque for whatever it is you are doing.