A3995 Datasheet | Allegro MicroSystems

DMOS Dual Full Bridge PWM Motor Driver Features AND BENEFITS - 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 PACKAGE: 36-pin QFN 0.90 mm nominal height (suffix EV) Not to scale DESCRIPTION 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. Typical Application Diagram Microcontroller or Controller Logic A3995DS Rev. 4 MCO-0000501 GND GND GND GND CP1 CP2 VCP VBB VBB OUT1A OUT1A MODE1 PHASE1 ENABLE1 VREF1 MODE2 PHASE2 ENABLE2 VREF2 OUT1B OUT1B SENSE1 SENSE1 OUT2A OUT2A OUT2B OUT2B SENSE2 SENSE2 July 1, 2019 DMOS Dual Full Bridge PWM Motor Driver SELECTION...