SS539 Datasheet, PDF (1/5 Pages) SEC Electronics Inc. – Bipolar Hall-Effect Position Sensor

Packages
3 pin SOT23 (suffix SO)
SS539
Bipolar Hall-Effect Position Sensor
3 pin SIP (suffix UA)
Features and Benefits
– 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
Functional Block Diagram
Application Examples
– Automotive, Consumer and Industrial
– Solid-state switch
– Brushless DC motor commutation
– Speed measurement
– Angular position detection
– Revolution counting
– Proximity detection
General Description
SIP Package
Pin 1 – V_DD
Pin 2 – GND
Pin 3 – OUT
SOT Package
Pin 1 – V_DD
Pin 2 – OUT
Pin 3 – GND
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
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.
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V2.10 May 1, 2012