DMOS Dual Full-Bridge PWM Motor Driver

Designed for pulse width modulated (PWM) current control of two DC motors, the A3974 is capable of output currents to 1.5 A and operating voltages to 50 V. Internal fixed off-time PWM current-control Timing circuitry CAN be programmed via a serial Interface to operate in slow, fast, and mixed currentdecay modes.
Independant ENABLE input terminals are provided for use in controlling the speed and torque of each dc motor with externally applied PWM control signals.
Synchronous rectification circuitry allows the load current to flow through the low rDS(on) of the DMOS output driver during the current decay. This feature will eliminate the need for external clamp Diodes in most applications, saving cost and external component count, while minimizing power dissipation. Internal Circuit Protection includes thermal shutdown with hysteresis, undervoltage monitoring of VDD and the Charge Pump and crossover-current protection. Special power-up sequencing is not required.
By Allegro MicroSystems, Inc.
A3974 's PackagesA3974 's pdf datasheet
A3974SED-T
A3974SEDTR-T




A3974 Pinout, Pinouts
A3974 pinout,Pin out
This is one package pinout of A3974,If you need more pinouts please download A3974's pdf datasheet.

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