A3995SEVTR-T Allegro, A3995SEVTR-T Datasheet

A3995SEVTR-T

Manufacturer Part Number

A3995SEVTR-T

Description

Manufacturer

Allegro

Datasheets

1.A3995SEVTR-T.pdf (9 pages)

2.A3995SEVTR-T.pdf (9 pages)

3.A3995SEVTR-T.pdf (9 pages)

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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)

A3995DS

Approximate scale 1:1

Microcontroller or

Controller Logic

DMOS Dual Full Bridge PWM Motor Driver

Typical Application Diagram

MODE1

PHASE1

ENABLE1

VREF1

MODE2

PHASE2

ENABLE2

VREF2

VDD

CP1

CP2

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.

A3995

VCP

VBB

SENSE1

SENSE2

OUT1B

OUT2B

OUT1A

OUT2A

VBB

A3995

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