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A2557KB Datasheet(PDF) 2 Page - Allegro MicroSystems

Part # A2557KB
Description  PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION & SLEEP MODE
PDF  12 Pages
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

A2557KB Datasheet(HTML) 2 Page - Allegro MicroSystems

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2557
PROTECTED QUAD DRIVER
WITH FAULT DETECTION
& SLEEP MODE
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
2
Copyright © 1998, 2000, Allegro MicroSystems, Inc.
FUNCTIONAL BLOCK DIAGRAM
<<1
Ω
OUT
Dwg. FP-007-2
N
ENABLE
IN N
FAULT
COMMON CONTROL
ONE OF FOUR DRIVERS
CURRENT
LIMIT
THERMAL
LIMIT
SLEEP
CONTROL
30
µA
60
µA
2.5 V
–
+
K
V CC
A2557xEB
5
6
7
8
9
10
11
19
20
21
22
23
24
25
GROUND
GROUND
GROUND
GROUND
Dwg. PP-019-2
NC
NC
CC
V
50
75
100
125
150
5
3
2
1
0
TEMPERATURE IN
°C
4
25
R
= 6
°C/W
θJT
Dwg. GP-004-2A
SUFFIX 'EB', R
= 36
°C/W
θJA
SUFFIX 'B', R
= 43
°C/W
θJA
SUFFIX 'LB', R
= 63
°C/W
θJA



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