SS2019

Hall Latch Position Sensor

2

V3.10

Nov 1, 2013

General Description

The SS2019 is an integrated Hall effect latched sen-

sor

designed

for

electronic

commutation

of

brush-less DC motor applications. The device inte-

grates a voltage regulator, reverse battery protection

diode, Hall sensor with dynamic offset cancellation

system, temperature compensation circuitry, small

signal

amplifier,

Schmitt

trigger

and

an

open-collector output to sink up to 25 mA.

These Hall-effect switches are monolithic integrated

circuits with tighter magnetic specifications, de-

signed to operate continuously over extended tem-

peratures to +150°C,and are more stable with both

temperature and supply voltage changes. If a mag-

netic flux density larger than threshold Bop, Output

is turned on (low). The output state is held until a

magnetic flux density reversal falls below Brp,

causing Output to be turned off (high).

Thanks to its wide operating voltage range and ex-

tended choice of temperature range, it is quite suita-

ble for use in DC motor applications.

The device is delivered in a Small Outline Transistor

(SOT) or in a Plastic Single In Line (SIP 3L flat).

Both 3-lead packages are RoHS compliant.

Glossary of Terms

MilliTesla (mT), Gauss

Units of magnetic flux density: 1mT = 10 Gauss

RoHS

Restriction of Hazardous Substances

Magnetic flux density applied on the branded side of the package which turns the

output

Magnetic flux density applied on the branded side of the package which turns the

output