A2557 Allegro MicroSystems, Inc., A2557 Datasheet - Page 2

• Manufacturer Part Number: A2557
• Description: Protected Quad Driver With Fault Detection And Sleep Mode
• Manufacturer: Allegro MicroSystems, Inc.

A2557
Description (continued)
Continuous or multiple overload conditions causing the channel
temperature to reach approximately 165°C will result in an additional
linear decrease in the output current of the affected driver. If the
fault condition is corrected, the output stage will return to its normal
saturated condition.
Selection Guide
A2557SB-T
A2557SEB-T
A2557SEBTR-T
A2557SLB-T
A2557SLBTR-T
A2557EB-T
A2557EEB-T
A2557EEBTR-T
A2557ELB-T
A2557ELBTR-T
A2557KB
A2557KB-T
A2557KEB-T
A2557KEBTR-T
A2557KLB-T
A2557KLBTR
A2557KLBTR-T
Part Number
Pb-free
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
–
–
–
16-pin DIP, exposed tabs
28-lead PLCC
28-lead PLCC
16-lead SOIC
16-lead SOIC
16-pin DIP, exposed tabs
28-lead PLCC
28-lead PLCC
16-lead SOIC
16-lead SOIC
16-pin DIP, exposed tabs
16-pin DIP, exposed tabs
28-lead PLCC
28-lead PLCC
16-lead SOIC
16-lead SOIC
16-lead SOIC
Package
with Fault Detection and Sleep Mode
The packages offer fused leads for enhanced thermal dissipation.
Package B is a 16-pin power DIP with exposed tabs, EB is a 28-
lead power PLCC, and LB is a 16-lead power wide-body SOIC
for surface-mount applications. The lead (Pb) free versions have
100% matte tin leadframe plating.
25 pieces per tube
38 pieces per tube
800 pieces per reel
47 pieces per tube
1000 pieces per reel
25 pieces per tube
38 pieces per tube
800 pieces per reel
47 pieces per tube
1000 pieces per reel
25 pieces per tube
25 pieces per tube
38 pieces per tube
800 pieces per reel
47 pieces per tube
1000 pieces per reel
1000 pieces per reel
Protected Quad Driver
Packing
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
Ambient Temperature
–40 to 125
–20 to 85
–40 to 85
(°C)
2