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A3992 Datasheet(PDF) 3 Page - Allegro MicroSystems

Part # A3992
Description  DMOS Dual Full-Bridge Microstepping PWM Motor Driver
Download  13 Pages
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

A3992 Datasheet(HTML) 3 Page - Allegro MicroSystems

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DMOS Dual Full-Bridge
Microstepping PWM Motor Driver
A3992
3
Allegro MicroSystems, LLC
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
Functional Block Diagram
MUX
SENSE1
SENSE2
VREG
VCP
CP1
VDD
6 Bit
Linear DAC
6 Bit
Linear DAC
Programmable
PWM Timer
Fixed-Off
Blank
Mixed Decay
Programmable
PWM Timer
Fixed-Off
Blank
Mixed Decay
CP2
Charge
Pump
VBB1
OUT1A
OUT1B
VBB2
OUT2A
OUT2B
Gate
Drive
OCP
VCP
DMOS Full Bridge 2
DMOS Full Bridge 1
0.22 µF
0.22 µF
SLEEP
STROBE
DATA
REF
2 V
0.22 µF
>47 µF
0.1 µF
CLOCK
OSC
To VDD
Control
Logic
Serial Port
UVLO and
Fault
Detect
OSC Select/
Divider
Internal
Oscillator
Phase 1,2
Sync Rect Mode
Sync Rect Disable
Mode 1, 2
Regulator
Bandgap
To VDD
Buffer
To 2V
VREF


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