A3981 Allegro Micro Systems, Inc., A3981 Datasheet - Page 3
A3981
Manufacturer Part Number
A3981
Description
Manufacturer
Allegro Micro Systems, Inc.
Datasheet
1.A3981.pdf
(42 pages)
Available stocks
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Part Number
Manufacturer
Quantity
Price
Part Number:
A3981KLP-T
Manufacturer:
ALLEGRO/雅丽高
Quantity:
20 000
Part Number:
A3981KLPTR-T
Manufacturer:
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Quantity:
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A3981
3.3V
ENABLE
RESETn
STEP
STRn
DIAG
SDO
SCK
VDD
MS1
MS0
REF
DIR
SDI
Cold Warning, Hot Warning, Overtemperature
Registers
DAC
System
Control
A
and
G
DAC
DAC
6-bit
6-bit
N
Short Detect, Open Load Detect
D
Undervoltage, Overvoltage
REF
REF
Control
Control
Control
Stall Detect
Bridge
+
+
PWM
Logic
PWM
Functional Block Diagram
OSC
Oscillator
SENSA
SENSB
Automotive, Programmable Stepper Driver
-
-
PAD
Drive
Gate
Regulator
DMOS Full Bridge
DMOS Full Bridge
VREG
CP1
Charge
Pump
P
G
N
D
CP2
VCP
VBBA
OAP
OAM
SENSA
VBBB
OBP
OBM
SENSB
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
VBAT
VBAT
3
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