A3980(2011) View Datasheet(PDF) - Allegro MicroSystems
Part Name
Description
Manufacturer
A3980 Datasheet PDF : 18 Pages
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A3980
Automotive DMOS Microstepping Driver
with Translator
Functional Block Diagram
C CP
5V
VDD
V REF
SENSE 1
STEP
DIR
MS1
MS2
DAC
Translator
RC1
R T1 C T1
SR
SLEEP
ENABLE
PFD
RC2
R T2 C T2
PWM Latch
Blanking
Mixed Decay
Control
Logic
PWM Latch
Blanking
Mixed Decay
DAC
SENSE 2
V REF
AGND
VREG
CP2
CP1
VCP
Charge
Pump
Voltage
Regulator
DMOS Full Bridge
VBB1
OUT1A
OUT1B
Gate
Drive
DMOS Full Bridge
SENSE1
VBB2
OUT2A
OUT2B
SENSE2
OVLO
UVLO
OVERTEMP
SHORT SENSE
OPEN SENSE
REF
FF1
FF2
VDD
VCP
VBB
OUT1A/1B
OUT2A/2B
SENSE1
SENSE2
PGND
C CS
VBATT
R S1
R S2
Allegro MicroSystems, Inc.
3
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
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