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A3995 Datasheet(PDF) 1 Page - Allegro MicroSystems

Part No. A3995
Description  DMOS Dual Full Bridge PWM Motor Driver
Download  9 Pages
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

A3995 Datasheet(HTML) 1 Page - Allegro MicroSystems

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Description
TheA3995 is designed to drive two dc motors at currents up to
2.4 A. Capable of drive voltages up to 36V, theA3995 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,
undervoltagelockout(UVLO)andcrossovercurrentprotection.
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.
A3995DS
Features and Benefits
▪ 36Voutputrating
▪ 2.4Adcmotordriver
▪ Synchronousrectification
▪ Internalundervoltagelockout(UVLO)
▪ Thermalshutdowncircuitry
▪ Crossover-currentprotection
▪ VerythinprofileQFNpackage
DMOS Dual Full Bridge PWM Motor Driver
Package: 36 pin QFN
0.90 mm nominal height (suffix EV)
A3995
Approximate scale 1:1
Typical Application Diagram
Microcontroller or
Controller Logic
MODE1
PHASE1
ENABLE1
VREF1
MODE2
PHASE2
ENABLE2
VREF2
VDD
CP1
CP2 VCP VBB VBB
OUT1A
OUT1B
SENSE1
OUT1B
OUT1A
SENSE1
OUT2A
OUT2B
SENSE2
OUT2B
OUT2A
SENSE2
A3995


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