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Related Links:

Datasheets:
A3995: DMOS Dual Full Bridge PWM Motor Driver (PDF)

Selection Guides:
Power Integrated Circuits,

Power Motor Drivers - Full-Bridge

when this product is updated

Press Releases:
A3995: Allegro MicroSystems, Inc. Announces a New DMOS Dual Full-Bridge PWM Motor Driver

A3995
DMOS Dual Full Bridge PWM Motor Driver

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

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.

Functional Block Diagram

Complete Part Numbers

Part Number	Package Type	RoHS Compliant	Part Composition/ RoHS Data	Temperature	Comments	Samples	Distributor Stock
A3995SEV-T	36-lead QFN/MLP	Yes	view data	-20 °C to  85 °C	new
A3995SEVTR-T	36-lead QFN/MLP	Yes	view data	-20 °C to  85 °C	new	samples not available

Allegro's products are not to be used in life support devices or systems, if a failure of an Allegro product can reasonably be expected to cause the failure of that life support device or system, or to affect the safety or effectiveness of that device or system.