A3979SLP Allegro Microsystems Inc, A3979SLP Datasheet - Page 3
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A3979SLP
Manufacturer Part Number
A3979SLP
Description
IC DRIVER MICROSTEPPING 28-TSSOP
Manufacturer
Allegro Microsystems Inc
Datasheet
1.A3979SLPTR-T.pdf
(14 pages)
Specifications of A3979SLP
Applications
Stepper Motor Driver
Number Of Outputs
1
Current - Output
±2.5A
Voltage - Load
8 V ~ 35 V
Voltage - Supply
3 V ~ 5.5 V
Operating Temperature
-20°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
Operating Current
12mA
Operating Temperature Classification
Commercial
Package Type
TSSOP EP
Operating Supply Voltage (min)
3V
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (max)
5.5V
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
A3979SLP-T
Manufacturer:
TEMIC
Quantity:
23
Part Number:
A3979SLP-T
Manufacturer:
ALLEGRO/雅丽高
Quantity:
20 000
Company:
Part Number:
A3979SLPT
Manufacturer:
A
Quantity:
5 510
Company:
Part Number:
A3979SLPT
Manufacturer:
AD
Quantity:
5 510
Part Number:
A3979SLPT
Manufacturer:
ALLEGRO/雅丽高
Quantity:
20 000
Part Number:
A3979SLPTR
Manufacturer:
ALLEGRO/雅丽高
Quantity:
20 000
Part Number:
A3979SLPTR-T
Manufacturer:
ALLEGRO/雅丽高
Quantity:
20 000
A3979
R
T1
Reference
Supply
Logic
Supply
V
C
0.1 µF
PFD
T1
R
ENABLE
T2
RESET
SLEEP
HOME
STEP
RC1
MS1
MS2
VDD
REF
PFD
RC2
DIR
SR
C
T2
Translator
UVLO and
AGND
Fault
(Required)
4
4
PGND
DAC
DAC
DMOS Microstepping Driver with Translator
Mixed Decay
Mixed Decay
PWM Timer:
PWM Timer:
Functional Block Diagram
PWM Latch
PWM Latch
Blanking
Blanking
Control
Logic
Exposed Thermal Pad
VREG
Drive
Gate
Regulator
Bandgap
0.22 µF
DMOS Full Bridge
DMOS Full Bridge
2 V
CP2
Charge
Pump
CP1
0.22 µF
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
VCP
VBB1
OUT1A
OUT1B
SENSE1
VBB2
OUT2A
OUT2B
SENSE2
R
R
S2
S1
0.22 µF
>47 µF
C
C
S1
S2
Supply
Load
3