3161

HALL-EFFECT SWITCH

FOR 2-WIRE APPLICATIONS

115 Northeast Cutoff, Box 15036

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

Limits

At T

Over Oper. Temp. Range

Characteristic

Symbol

Min.

Typ.

Max.

Min.

Typ.

Max.

Units

Operate Point (output turns OFF)

B

OP

–

130

160

–

130

160

G

Release Point (output turns ON)

B

RP

30

110

–

30

110

–

G

Hysteresis (B

5.0

20

–

5.0

20

80

G

Limits

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Supply Voltage

V

CC

Operating

3.5

—

25

V

Load Current

I

3.5 V

≤ V

12

15

17

mA

(2-wire application)

V

12

15

19

mA

B > B

OP

—3.5

5.0

mA

Output Current

I

OUT

B < B

RP

—12

—

mA

I

OFF

V

—

<1.0

10

µA

Output Saturation Voltage

V

OUT

I

–0.9

1.5

V

Output Slew Rate

di/dt

C

—

7.0

20

mA/

µs

Output Settling Time

t

sd

C

—

—

20

µs

ELECTRICAL CHARACTERISTICS over operating voltage and temperature ranges.

Copyright © 1998, 1999, Allegro MicroSystems, Inc.

MAGNETIC CHARACTERISTICS over operating supply voltage range.

FUNCTIONAL BLOCK DIAGRAM

NOTE:Typical values are at T

X

REG.

Dwg. FH-017

GROUND

OUTPUT

3

2

1