SS1072 Datasheet, PDF (1/5 Pages) SEC Electronics Inc. – Unipolar Hall-Effect Digital Switch

Packages
3 pin SOT23 (suffix SO)
SS1072
Unipolar Hall-Effect Digital Switch
3 pin SIP (suffix UA)
Features and Benefits
– 4.5V to 24V Operation
– -40°C to 150°C Superior temperature
operation
– Bipolar technology
– Open-collector 25 mA output
– Reverse battery protection
– Solid-state reliability
– Resistant to physical stress
– Small Size SOT23 3L or SIP 3L
– Activate with small, commercially available
Permanent magnets
Functional Block Diagram
V_DD
Voltage
Regulatr
Chopper
OUT
Application Examples
– Automotive, Consumer and Industrial
– Solid-state switch
– Brushless DC motor commutation
– Speed detection
– Angular position detection
– Linear position detection
– Proximity detection
Hall
Plate
GND
General Description
The SS1072 is a unipolar Hall-effect sensor IC fabri-
cated from bipolar technology. The device integrates a
voltage regulator, reverse battery protection diode, Hall
sensor with dynamic offset cancellation system, tem-
perature compensation circuitry, small signal amplifier,
Schmitt trigger and an open-collector output to sink up
to 25 mA. With suitable output pull up, they can be
used with bipolar or CMOS logic circuits
These Hall-effect switches are monolithic integrated circuits with tighter magnetic specifications, designed to oper-
ate continuously over extended temperatures to +150°C, and are more stable with both temperature and supply volt-
age changes. The unipolar switching characteristic makes these devices ideal for use with a simple bar or rod mag-
net.
Thanks to its wide operating voltage range and extended choice of temperature range, it is quite suitable for use in
automotive, industrial and consumer applications.
The device is delivered in a Small Outline Transistor (SOT) and in a Plastic Single In Line ( SIP 3L flat). Both
3-lead packages are RoHS compliant.
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V3.10 Nov 1, 2013