Dual full-bridge for a bipolar motor

Features
● Dual full-bridge for a bipolar stepper motor
● Constant current control (fixed frequency PWM control)
● Current decay selection (correspond to microstepping drive)
● Noise cancellation function (no need external RC)
● Integrated flywheel and flyback diodes
● Cross conduction protection
● Overheating alarm function
● Surface mount type package with heatsink (HSOP28)