A3916: Dual DMOS Full-Bridge Motor Driver

Description

Designed for pulse-width-modulated (PWM) control of lowvoltage 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 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 × 3 mm 16-terminal QFN (suffix “ES”) and in a low-profile 4 × 4 mm 20-terminal QFN (suffixes “ES, -1”), both with exposed power tab for enhanced thermal dissipation.

Top Features

  • Wide, 2.7 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

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Compliant
Part Composition /
RoHS Data
Comments Samples Check Stock
APEK3916GES-01-T DEMO BOARD -20°C to 85°C No -- Contact your
local sales rep
Check
Distributor Stock
APEK3916GES-01-T-01 DEMO BOARD -20°C to 85°C No -- Contact your
local sales rep
Check
Distributor Stock
A3916GESTR-T 16-lead QFN -40°C to 105°C Yes View Data Contact your
local sales rep
Check
Distributor Stock
A3916GESTR-T-1 20-lead QFN -40°C to 105°C Yes View Data Contact your
local sales rep
Check
Distributor Stock

Allegro’s products are not to be used in any devices or systems, including but not limited to life support devices or systems, in which a failure of Allegro’s product can reasonably be expected to cause bodily harm.

Packaging

A3916 Packages

Design Support Tools