LV8741V PWM stepping motor driver electronic project circuit design
Using the LV8741V PWM stepping motor driver IC can be designed a very simple and efficiency DC motor driver electronic project .
As you can see in the circuit diagram , this electronic project require few external electronic parts . The maximum output current that can be provided by this PWM current-control stepping motor driver IC is up to 1.5 ampere .
The reference voltage is set by the voltage applied to the VREF pin and the two inputs ATT1 and ATT2.
When the output current is below the output short-circuit protection current, the output is controlled by the input signal.
The setting conditions for the above PWM current-control DC motor driver circuit diagram are as follows : Auto recovery-type output short-circuit protection function (EMM = Low), Output enable function fixed to output ON state (OE = High), Current limit reference voltage setting = 100% (ATT1 = Low, ATT2 = Low) ,Chopping frequency : 37kHz (RCHOP = 43k ).
Voltages required by this LV8741V current-control DC motor driver are from 9.5 to 35 volt for motor power and from 2.7 to 5.5 for logic power supply .