A2557EEB datasheet(3/12 Pages) ALLEGRO

Part #	A2557EEB

Description	PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION and SLEEP MODE

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Manufacturer	ALLEGRO [Allegro MicroSystems]

Direct Link	http://www.allegromicro.com

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3 / 12 page

2557

PROTECTED QUAD DRIVER

WITH FAULT DETECTION

& SLEEP MODE

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

3

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 (PLCC)

50

75

100

125

150

5

3

2

1

0

TEMPERATURE IN °°°°C

4

25

R

= 6°C/W

θJT

Dwg. GP-004-2B

SUFFIX 'EB', R

= 36°C/W

θJA

SUFFIX 'B', R

= 43°C/W

θJA

SUFFIX 'LB', R

= 90°C/W

θJA

GROUND

Dwg. PP-019-2

NC

CC

V

19

20

21

22

23

24

25

5

6

7

8

9

10

11

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A2557EEB Datasheet(PDF) 3 Page - Allegro MicroSystems

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