SS2019
Hall Latch Position Sensor
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.
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.
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
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
Operating Point (BOP)
Magnetic flux density applied on the branded side of the package which turns the
output driver ON (VOUT = VDSon
)
Release Point (BRP)
Magnetic flux density applied on the branded side of the package which turns the
output driver OFF (VOUT = high)
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V3.10 Nov 1, 2013
SECELECTRONICS [ SEC Electronics Inc. ]
