A3979SLP Allegro Microsystems Inc, A3979SLP Datasheet - Page 5
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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:
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Manufacturer:
AD
Quantity:
5 510
Part Number:
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Manufacturer:
ALLEGRO/雅丽高
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Part Number:
A3979SLPTR
Manufacturer:
ALLEGRO/雅丽高
Quantity:
20 000
Part Number:
A3979SLPTR-T
Manufacturer:
ALLEGRO/雅丽高
Quantity:
20 000
A3979
1
individual units, within the specified maximum and minimum limits.
2
3
THERMAL CHARACTERISTICS may require derating at maximum conditions, see application information
ELECTRICAL CHARACTERISTICS, continued
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
UVLO Enable Threshold
UVLO Hysteresis
Typical data are for initial design estimations only, and assume optimum manufacturing and application conditions. Performance may vary for
Negative current is defined as coming out of (sourcing from) the specified device pin.
E
*Additional thermal information available on Allegro Web site.
G
Package Thermal Resistance
= ( [ V
REF
Characteristics
Characteristic
/ 8] – V
SENSE
) / ( V
REF
/ 8 ).
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
V
Symbol
T
Symbol
UVLOHYS
V
JSDHYS
T
20
R
UVLO
DMOS Microstepping Driver with Translator
JSD
θJA
40
Increasing V
Maximum Power Dissipation, P
Two-layer PCB with 3.8 in.
connected with thermal vias and to device exposed pad
High-K PCB (multilayer with significant copper areas,
based on JEDEC standard)
60
at T
Test Conditions
Temperature (°C)
A
80
DD
= 25°C, V
100
Test Conditions*
BB
= 35 V, V
120
2
of copper area on each side
D(max)
140
DD
= 3.0 to 5.5 V (unless otherwise noted)
Min.
2.45
0.05
160
–
–
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
Typ.
0.10
165
2.7
15
1
Value
32
28
Max.
2.95
–
–
–
Units
ºC/W
ºC/W
Units
°C
°C
V
V
5