A3981KLPTR-T Allegro Microsystems Inc, A3981KLPTR-T Datasheet - Page 2

• Manufacturer Part Number: A3981KLPTR-T
• Description: AUTOMOTIVE PROGRAMMABLE STEPPER DRVR
• Manufacturer: Allegro Microsystems Inc

Specifications of A3981KLPTR-T

• Applications: Stepper Motor Driver, 2 Phase
• Number Of Outputs: 1
• Voltage - Load: 7 V ~ 28 V
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP (0.173", 4.40mm Width) Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

A3981
Selection Guide
*Contact Allegro
Absolute Maximum Ratings
Thermal Characteristics
Package Thermal Resistance
(Junction to Ambient)
Package Thermal Resistance
(Junction to Pad)
*Additional thermal information available on the Allegro website
Load Supply Voltage
Logic Supply Voltage
Pin CP1
Pins CP2, VCP
Pins STEP, DIR, ENABLE, DIAG
Pin VREG
Pin RESETn
Pin OSC
Pins MS0, MS1
Pins SDI, SDO, SCK, STRn
Pin REF
Pins OAP, OAM, OBP, OBM
Pins SENSA, SENSB
Ambient Operating Temperature
Range
Maximum Continuous Junction
Temperature
Transient Junction Temperature
Storage Temperature Range
A3981KLP-T
A3981KLPTR-T
Part Number
Characteristic
Characteristic
®
for additional packing information.
may require derating at maximum conditions
With respect to GND
Symbol
4000 pieces per reel
Symbol
T
50 pieces per tube
J
V
V
(max)
R
T
R
T
T
BBx
DD
stg
θJA
θJP
A
tJ
Packing*
4-layer PCB based on JEDEC standard
2-layer PCB with 24.52 cm
Automotive, Programmable Stepper Driver
Applies to V
Can be pulled to V
Range K; limited by power dissipation
Overtemperature event not exceeding 10 s,
lifetime duration not exceeding 10 hours,
guaranteed by design and characterization
BBA
and V
Test Conditions*
BB
4.4 mm × 9.7 mm, 1.2 mm nominal height TSSOP
with exposed thermal pad
Notes
with 38 kΩ
BBB
2
of copper area each side
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
–0.3 to 50
–0.3 to 6
–0.3 to V
–0.3 to V
–0.3 to 6
–0.3 to 8.5
–0.3 to 6
–0.3 to 6
–0.3 to 6
–0.3 to 6
–0.3 to 6
–0.3 to V
–0.3 to 1
–40 to 150
–55 to 150
Rating
Value
150
175
28
32
2
BB
BB
BB
+8
Unit
ºC/W
ºC/W
ºC/W
Unit
°C
°C
°C
°C
V
V
V
V
V
V
V
V
V
V
V
V
V
2