A3977SED Allegro Microsystems Inc, A3977SED Datasheet - Page 2

• Manufacturer Part Number: A3977SED
• Description: IC MOTOR DRIVER PWM DUAL 44PLCC
• Manufacturer: Allegro Microsystems Inc

Specifications of A3977SED

• 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: 44-LCC (J-Lead)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

A3977
Thermal Characteristics
Absolute Maximum Ratings
Selection Guide
Package Thermal Resistance
*Additional thermal information available on the Allegro website.
Load Supply Voltage
Logic Supply Voltage
Logic Input Voltage Range
Reference Voltage
Sense Voltage (DC)
Output Current
Operating Ambient Temperature
Maximum Junction Temperature
Storage Temperature
A3977KEDTR-T
A3977SEDTR-T
A3977SLPTR-T
Part Number
Characteristic
Characteristic
4000 per reel
450 per reel
450 per reel
Packing
Symbol
Symbol
T
V
R
J
V
SENSE
I
V
V
(max)
T
V
OUT
θJA
T
REF
DD
stg
BB
Microstepping DMOS Driver with Translator
IN
A
Package ED, on 4-layer PCB based on JEDEC standard
Package LP, on 4-layer PCB based on JEDEC standard
Pulsed, t
Pulsed, t
Output current rating may be limited by duty
cycle, ambient temperature, and heat sinking.
Under any set of conditions, do not exceed the
specified current rating or a junction temperature
of 150°C.
Range K
Range S
44-pin PLCC
44-pin PLCC
28-pin TSSOP
Package
w
w
> 30 ns
< 30 ns
Notes
Ambient Temperature, T
Test Conditions*
–40 to 125
–20 to 85
(°C)
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
–0.3 to V
–1.0 to V
–40 to 125
–55 to 150
A
–20 to 85
Rating
±2.5
V
150
7.0
0.5
35
DD
DD
DD
+ 0.3
+ 1
Units
ºC
ºC
ºC
ºC
V
V
V
V
V
V
A
Value Units
22
28
ºC/W
ºC/W
2