SS539
Bipolar Hall-Effect Position Sensor
Packages
Features and Benefits
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4.5V to 24V Operation
-40℃ to 150℃ Superior temperature operation
Bipolar technology
Open-collector 25 mA output
Reverse battery protection
Solid-state reliability
Resistant to physical stress
Small Size-SOT23 3L and SIP 3L
Activate with small, commercially available
Permanent magnets
3 pin SOT23 (suffix SO)
3 pin SIP (suffix UA)
Functional Block Diagram
Application Examples
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Automotive, Consumer and Industrial
Solid-state switch
Brushless DC motor commutation
Speed measurement
Angular position detection
Revolution counting
Proximity detection
General Description
The SS539 is an integrated Hall effect latched sensor
designed for electronic commutation of brush-less DC
motor applications. The device integrates 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
SIP Package
Pin 1 – V
DD
Pin 2 – GND
Pin 3 – OUT
SOT Package
Pin 1 – V
DD
Pin 2 – OUT
Pin 3 – GND
These Hall-effect switches are monolithic integrated circuits with tighter magnetic specifications, designed to operate
continuously over extended temperatures to +150
℃
, and are more stable with both temperature and supply voltage
changes. If a magnetic flux density larger than threshold Bop, Output is turned on (low). The output state is held until a
magnetic flux density reversal falls below B
RP
, causing Output to be turned off (high).
Thanks to its wide operating voltage range and extended choice of temperature range, it is quite suitable 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.
1
V2.10
May 1, 2012
SECELECTRONICS [ SEC Electronics Inc. ]
