SS732/SS632

Hall Latch - High Sensitivity

Pin Definitions and Description

Type

Function

SOT Pin №

SIP Pin №

Name

1

1

DD

upply

Sup

ge pin

V

S

ply Volta

2

3

OUT

Output

Open Drain Output pin

3

2

GND

Ground

Ground pin

Detailed General Description

The S732 exhibits latch magnetic switching characteristics. Therefore, it requir

The OUT pin of these devices switches low (turns on) when a magnetic field

es both south and north poles to operate properly.

perpendicular to the Hall sensor exceeds the operate point

tches, that is, a south pole of sufficient strength

towards the branded surface of the device turns the device on. The device remains on if the south pole is removed (B→0). This

ry.

When t

op

point, and allows clean switching of the output even in the presence of external mechanical vibration and electrical noise.

Th

eq

Po

sta

OP

RP

Th

str

0mT

0mT

e la

latching property defines the device as a magnetic memo

he magnetic field is reduced below the release point, BRP , the OUT pin turns off (goes high). The difference in the magnetic

e device behaves as a latch with symmetric operating and release switching points (BOP=|BRP|). This means magnetic fields with

uivalent strength and opposite direction drive the output high and low.

te is attained after the first excursion beyond B

or B

.

e SOT-23 device is reversed from the UA package. The SOT-23 output transistor will be latched on in the presence of a sufficiently

ong North pole magnetic field applied to the marked face.

Output level

Output level

OUT = High

                                                               

3

V2.00

May.1, 2012

Flux density

18Gs typ

OUT = Low

OUT = Low

UA package

- Latch characteristic

18Gs typ

-18Gs typ

-18Gs typ

Flux densit

OUT = High

y

SO

package

- Latch characteristic