A3916 Dual DMOS Full-Bridge Motor Driver

Allegro MicroSystems' A3916 full-bridge motor driver designed for pulse-width-modulated (PWM) control

Image of Allegro MicroSystems' A3916 Dual DMOS Full-Bridge Motor DriverAllegro MicroSystems' A3916 is designed for pulse-width-modulated (PWM) control of low voltage stepper motors and single and dual DC motors. The A3916 is capable of output currents up to 1 A per channel and operating voltages from 2.7 V to 15 V. The A3916 has an internal fixed off-time PWM timer that sets a peak current based on the selection of a current sense resistor. An output fault flag is provided that notifies the user of a TSD or overcurrent protection event. The A3916 is supplied in a low-profile 3 mm x 3 mm 16-terminal QFN and in a low-profile 4 mm x 4 mm 20-terminal QFN, both with exposed power tab for enhanced thermal dissipation. The A3916 replaces the A3906 with additional needed features to remain competitive with parts from other manufacturers.

Features
  • Wide, 2.7 V to 15 V input voltage operating range
  • Dual DMOS full-bridges: drive two DC motors or one stepper motor
  • Low RDS(ON) outputs
  • Synchronous rectification for reduced power dissipation
  • Low-current sleep mode
  • Overcurrent protection
  • Internal UVLO and thermal shutdown circuitry
  • Integrated charge pump
  • Pin-to-pin compatible with A3906
Application
   
  • POS printers
  • Battery controlled valves
  • Battery controlled door locks
  • CCTV focus and/or lens actuator
 
  • Webcam tilt driver
  • Battery operated toothbrushes
  • Toys

A3916 Motor Driver

ImageManufacturer Part NumberDescriptionSupplier Device PackageAvailable QuantityView Details
A3916GESTR-T datasheet linkIC MOTOR DRIVER PAR 16QFNA3916GESTR-TIC MOTOR DRIVER PAR 16QFN16-QFN/MLP (3x3)12860 - Immediate
A3916GESTR-T product page link
A3916GESTR-T-1 datasheet linkIC MOTOR DRIVER PAR 20QFNA3916GESTR-T-1IC MOTOR DRIVER PAR 20QFN20-QFN (4x4)8803 - Immediate
A3916GESTR-T-1 product page link
Published: 2017-01-31