A2557SEB-T Allegro Microsystems Inc, A2557SEB-T Datasheet - Page 4

• Manufacturer Part Number: A2557SEB-T
• Manufacturer: Allegro Microsystems Inc

Specifications of A2557SEB-T

• Switch Type: Low Side
• Power Switch Family: A2557
• Input Voltage: 7V
• Output Current: 300mA
• Number Of Outputs: 4
• Mounting: Surface Mount
• Supply Current: 30mA
• Package Type: PLCC
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Pin Count: 28
• Lead Free Status / Rohs Status: Compliant

A2557
GROUND
GROUND
GROUND
GROUND
Note that the A2557xB (DIP) and the A2557xLB
(SOIC) are electrically identical and share a common
terminal number assignment.
B (DIP) and LB
FAULT
10
11
5
6
7
8
9
OUT
OUT
OUT
OUT
K
1
2
3
4
Pin-out Diagrams
1
2
4
5
6
7
8
3
EB
Copyright © 1998, 2002 Allegro MicroSystems, Inc.
(PLCC) Package
with Fault Detection and Sleep Mode
NC
NC
(SOIC) Packages
16
15
14
13
12
11
10
9
V
CC
ENABLE
V
IN
IN
GROUND
GROUND
IN
IN
CC
2
1
3
4
25
24
22
21
20
19
23
Dwg. PP-019-2
Protected Quad Driver
GROUND
GROUND
Allegro MicroSystems, Inc.
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Worcester, Massachusetts 01615-0036 U.S.A.
4