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A3979 Datasheet(PDF) 3 Page - Allegro MicroSystems

No. de pieza A3979
Descripción Electrónicos  Microstepping DMOS Driver with Translator
PDF  15 Pages
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Fabricante Electrónico  ALLEGRO [Allegro MicroSystems]
Página de inicio  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

A3979 Datasheet(HTML) 3 Page - Allegro MicroSystems

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DMOS Microstepping Driver with Translator
A3979
3
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
Functional Block Diagram
SENSE1
SENSE2
VREG
VCP
CP1
DAC
VDD
PWM Timer:
PWM Latch
Blanking
Mixed Decay
DAC
STEP
DIR
MS1
PWM Timer:
PWM Latch
Blanking
Mixed Decay
CP2
Charge
Pump
VBB1
OUT1A
OUT1B
VBB2
OUT2A
OUT2B
Translator
Gate
Drive
DMOS Full Bridge
DMOS Full Bridge
0.22 µF
MS2
REF
R
S2
C
S2
R
S1
C
S1
0.22 µF
UVLO and
Fault
Logic
Supply
Reference
Supply
4
4
RESET
SLEEP
ENABLE
SR
PFD
RC2
RC1
HOME
2 V
0.22 µF
Control
Logic
>47 µF
Load
Supply
R
T2
C
T2
R
T1
C
T1
V
PFD
0.1 µF
Regulator
Bandgap
Exposed Thermal Pad
AGND
PGND
(Required)



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