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3055 Datasheet, PDF (1/8 Pages) Allegro MicroSystems – MULTIPLEXED TWO-WIRE HALL-EFFECT SENSOR ICs
3055
3055 MULTIPLEXED
TWO-WIRE HALL EFFECT
SENSOR IC
DISCONTINUED PRODUCT
Shown for Reference Only
LOGIC
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Dwg. PH-005
MULTIPLEXED TWO-WIRE
HALL-EFFECT SENSOR ICs
The UGN3055U Hall-effect sensor is a digital magnetic sensing IC
capable of communicating over a two-wire power/signal bus. Using a
sequential addressing scheme, the device responds to a signal on the
bus and returns the diagnostic status of the IC, as well as the status of
each monitored external magnetic field. As many as 30 sensors can
function on the same two-wire bus. This IC is ideal for multiple sensor
applications where minimizing the wiring harness size is desirable or
essential.
The device consists of high-resolution bipolar Hall-effect switching
circuitry, the output of which drives high-density CMOS logic stages.
These logic stages decode the address pulse and enable a response
at the appropriate address. The combination of magnetic-field or
switch-status sensing, low-noise amplification of the Hall-transducer
output, and high-density decoding and control logic is made possible
by the development of a new sensor BiMOS fabrication technology.
This unique magnetic sensing IC operates within specifications
between -20°C and +85°C. Alternate magnetic and temperature
specifications are available upon request. It is supplied in a 60 mil
(1.54 mm) thick, three-pin plastic SIP. Each package is clearly marked
with a two-digit decimal device address (xx).
Pinning is shown viewed from branded side.
ABSOLUTE MAXIMUM RATINGS
at TA = +25°C
Supply Voltage, VBUS ........................... 24 V
Magnetic Flux Density, B ............ Unlimited
Operating Temperature Range,
TA .......................... -20°C to +85°C
Storage Temperature Range,
TS .............................. -55°C to +150°C
Package Power Dissipation,
PD .................................... 750 mW
FEATURES
s Complete Multiplexed Hall-Effect IC with
Simple Sequential Addressing Protocol
s Allows Power and Communication Over a
Two-Wire Bus (Supply/Signal and Ground)
s Up to 30 Hall-Effect Sensors Can Share a Bus
s Sensor Diagnostic Capabilities
s Magnetic-Field or Switch-Status Sensing
s Low Power of BiMOS Technology Favors
Battery-Powered and Mobile Applications
s Ideal for Automotive, Consumer, and Industrial Applications
Always order by complete part number: UGN3055U .