Dual full-bridge PWM motor driver IC shares to save PCB space

Capable of driving two DC motors with outputs rated up to 3.2A, Allegro’s A5995 IC, integrates two drivers in one package. The 40V dual full-bridge driver includes fixed off-time pulse-width modulation (PWM) regulators for current control. Each DC motor can be controlled in forward, reverse, coast and brake modes with industry standard phase and enable inputs. Fast or slow PWM current decay is selected via the mode input.

Applications include consumer, industrial and office automation markets for use in laser, inkjet and label printers, copiers, vending, robot vacuums, and ATM machines.

Protection features include thermal shutdown with hysteresis, under-voltage lock-out (UVLO), crossover current, and over-current protection. Low current sleep mode is included.

The IC is supplied in a leadless 6.0 x 6.0 x 0.9mm, 36pin QFN package with exposed power tab for enhanced thermal performance. The package is lead-free, with 100 per cent matt-tin leadframe plating.



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