A3982SLBTR-T Allegro Microsystems Inc, A3982SLBTR-T Datasheet - Page 2

• Manufacturer Part Number: A3982SLBTR-T
• Description: IC MOTOR DRIVER STEPPER 24-SOIC
• Manufacturer: Allegro Microsystems Inc

Specifications of A3982SLBTR-T

• Applications: Stepper Motor Driver
• Number Of Outputs: 1
• Current - Output: ±2A
• 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: 24-SOIC (7.5mm Width)
• Motor Type: DMOS
• No. Of Outputs: 4
• Output Current: 2A
• Output Voltage: 35V
• Supply Voltage Range: 3V To 5.5V
• Driver Case Style: SOIC
• No. Of Pins: 24
• Operating Temperature Range: -20°C To +85°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 620-1299-2; A3982SLBTR-T

A3982
Description (continued)
fixed off-time, then to a slow decay for the remainder of the
off-time). This current decay control scheme results in reduced
audible motor noise, increased step accuracy, and reduced power
dissipation.
Internal synchronous rectification control circuitry is provided to
improve power dissipation during PWM operation.
Selection Guide
*Contact Allegro for additional packing options
Absolute Maximum Ratings
Load Supply Voltage
Logic Input Voltage
Sense Voltage
Reference Voltage
Output Current
Operating Ambient Temperature
Maximum Junction Temperature
Storage Temperature
A3982SLB-T
A3982SLBTR-T
Part Number
Characteristic
31 pieces per tube
1000 pieces per reel
Symbol
T
Packing*
V
J
V
DMOS Stepper Motor Driver with Translator
SENSE
I
V
(max)
T
V
OUT
T
REF
stg
BB
IN
A
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 S
24-pin Wide SOIC with pins 6 and 7, and 18
and 19, fused internally
Internal circuit protection includes: thermal shutdown with
hysteresis, undervoltage lockout (UVLO), and crossover-current
protection. Special power-on sequencing is not required.
The A3982 is supplied in a 24-pin wide-body SOIC
(package LB) with internally-fused power ground leads for
enhanced thermal dissipation. It is lead (Pb) free, with 100%
matte tin plated leadframe.
Notes
Package
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
–55 to 150
–20 to 85
–0.3 to 7
Rating
150
0.5
35
±2
4
Units
ºC
ºC
ºC
V
V
V
V
A
2