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DESCRIPTION
The PT2480 is a brushed-DC motor driver for printers, home appliances, industrial equipment, and other small machines. Dual pin logic inputs controls the Hbridge driver output current flows to maniple the motor rotation in forward or reverse direction. With sufficient heat dissipation PCB area or add-on heatsinking, the peak output current may up to 3.6 Amps.
The PT2480 has built-in PWM current regulation circuits; it’s a very useful function to limiting average current draws from power supply during motor rotates starts up and stalled. The PWM current regulation level is determinates by an external applied VREF reference voltage and current sense resistance attached in ISEN pin.