3134

LOW-HYSTERESIS

BIPOLAR HALL-EFFECT SWITCH

FOR HIGH-TEMP. OPERATION

115 Northeast Cutoff, Box 15036

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

Limits

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Supply Voltage

V

CC

Operating

4.5

—

24

V

Output Saturation Voltage

V

OUT(SAT)

I

—

175

400

mV

Output Leakage Current

I

OFF

V

—

0.05

1.0

µA

Supply Current

I

CC

B < B

—

3.2

9.0mA

B > B

—

5.0—

mA

Output Rise Time

t

r

R

—

100

—

ns

Output Fall Time

t

f

R

—

100

—

ns

ELECTRICAL CHARACTERISTICS over operating temperature range, at V

MAGNETIC CHARACTERISTICS over oper. temp. and oper. supply voltage ranges.

X

REG.

Dwg. FH-005-3

GROUND

OUTPUT

1

3

2

FUNCTIONAL BLOCK DIAGRAM

Limits

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Operate Point

B

OP

-408.5

60 G

Release Point

B

RP

-50-19

50 G

Hysteresis

B

hys

5.027

55

G

Copyright © 1995, 2003 Allegro MicroSystems, Inc.

NOTES: B

As used here, negative flux densities are defined as less than zero (algebraic convention).

Typical values are at T

1 gauss (G) is exactly equal to 0.1 millitesla (mT).