Quality Standards and Environmental Certifications

A3995: DMOS Dual Full Bridge PWM Motor Driver

A3995 Datasheet
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Description

DISCONTINUED:This device is no longer in production. The device should not be purchased for new design applications. Samples are no longer available. Date of status change: July 1, 2019.

Recommended Substitutions: A5995GEVSR-T

The A3995 is designed to drive two DC motors at currents up to 2.4 A. Capable of drive voltages up to 36 V, the A3995 includes two independent fixed off-time PWM current regulators that operate in either fast or slow decay mode, as determined by the MODE input. Internal synchronous rectification control circuitry is provided to improve power dissipation during PWM operation.

Protection features include: thermal shutdown with hysteresis, undervoltage lockout (UVLO) and crossover current protection. Special power-up sequencing is not required.

The A3995 is supplied in a 36 pin QFN package (suffix EV) with exposed power tab for enhanced thermal performance. It has a 6 mm × 6 mm footprint, with a nominal overall package height of 0.90 mm, and is lead (Pb) free, with 100% matte tin leadframe plating.

Top Features

  • 36 V output rating
  • 2.4 A DC motor driver
  • Synchronous rectification
  • Internal undervoltage lockout (UVLO)
  • Thermal shutdown circuitry
  • Crossover-current protection
  • Very thin profile QFN package
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Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Compliant 		Part Composition /
RoHS Data 		Comments Samples Check Stock
A3995SEVTR-T 36-lead QFN/MLP -20°C to 85°C Yes View Data Discontinued Contact your
local sales rep		 Check
Distributor Stock
APEK3995SEV-01-T DEMO BOARD -20°C to 85°C No -- Discontinued 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

The A3995 is supplied in a 36 pin QFN package (suffix EV) with exposed power tab for enhanced thermal performance. It has a 6 mm × 6 mm footprint, with a nominal overall package height of 0.90 mm, and is lead (Pb) free, with 100% matte tin leadframe plating.

EV-QFN 36 pin with exposed pad