US4881 Melexis Company, US4881 Datasheet

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US4881

Manufacturer Part Number
US4881
Description
Bipolar Hall Switch - Low Voltage & Very High Sensitivity
Manufacturer
Melexis Company
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
US4881KUA
Manufacturer:
SITRONIX
Quantity:
2 000
Part Number:
US4881KUA/EUA
Manufacturer:
MELEXIS
Quantity:
50 000
Features and Benefits
Ordering Information
Part No.
US4881
US4881
US4881
US4881
US4881
US4881
1 Functional Diagram
3901004881
Rev 011
Operating voltage range from 2.2V to 18V
Very high magnetic sensitivity
CMOS technology
Chopper-stabilized amplifier stage
Low current consumption
Open drain output
SOT23 3L and flat TO-92 3L
both RoHS Compliant packages
Temperature Code
E (-40° C to 85° C)
E (-40° C to 85° C)
K (-40° C to 125° C)
K (-40° C to 125° C)
L (-40° C to 150°C)
L (-40° C to 150°C)
Page 1 of 11
Low Voltage & Very High Sensitivity
2 General Description
The Melexis US4881 is a bipolar Hall-effect switch
designed in mixed signal CMOS technology.
The device integrates a voltage regulator, Hall
sensor with dynamic offset cancellation system,
Schmitt trigger and an open-drain output driver, all
in a single package.
The low operating voltage and extended choice of
temperature range make it suitable for use in
automotive, industrial and consumer low voltage
applications.
The devices are delivered in a Small Outline
Transistor (SOT23) for surface mount process and
in a Plastic Single In Line (TO-92 flat) for through-
hole mount.
Both 3-lead packages are RoHS compliant.
Application Examples
Automotive, Consumer and Industrial
Solid-state switch
Brushless DC motor commutation
Speed detection
Linear position detection
Angular position detection
Proximity detection
Package Code
SO (SOT23-3L)
UA (TO-92)
SO (SOT23-3L)
UA (TO-92)
SO (SOT23-3L)
UA (TO-92)
Bipolar Hall Switch
US4881
Data Sheet
Feb/06

Related parts for US4881

US4881 Summary of contents

Page 1

... K (-40° 125° (-40° 150°C) L (-40° 150°C) 2 General Description The Melexis US4881 is a bipolar Hall-effect switch designed in mixed signal CMOS technology. The device integrates a voltage regulator, Hall sensor with dynamic offset cancellation system, Schmitt trigger and an open-drain output driver, all in a single package ...

Page 2

... Standard information regarding manufacturability of Melexis products with different soldering processes........................................................................................... 8 15 ESD Precautions ........................................................................................................... 8 16 Package Information..................................................................................................... 9 16.1 SO Package (SOT23-3L).........................................................................................................................9 16.2 UA Package (TO-92 flat) .......................................................................................................................10 17 Disclaimer.................................................................................................................... 11 3901004881 Rev 011 Low Voltage & Very High Sensitivity Page US4881 Bipolar Hall Switch Data Sheet Feb/06 ...

Page 3

... SE Pin UA Pin Name Table 2: Pin definitions and descriptions SO package 3901004881 Rev 011 Low Voltage & Very High Sensitivity Symbol Value Units ° ° Symbol Value Units ° ° ° Type Function UA package Page US4881 Bipolar Hall Switch Data Sheet Feb/06 ...

Page 4

... DD Test Conditions 150 2.2V to 18V (unless otherwise specified) DD OUT (SO) Test Conditions (UA) North pole North pole OUT = high ) DSon Page US4881 Bipolar Hall Switch Min Typ Max Units Min Typ Max Units OUT (UA) South pole OUT = low (V ) DSon UA package ...

Page 5

... Detailed General Description Based on mixed signal CMOS technology, Melexis US4881 is a Hall-effect device with very high magnetic sensitivity. It allows using generic magnets, weak magnets or larger air gap. The chopper-stabilized amplifier uses switched capacitor techniques to suppress the offset generally observed with Hall sensors and amplifiers. The CMOS technology makes this advanced technique possible and contributes to smaller chip size and lower current consumption than bipolar technology ...

Page 6

... Performance Graphs 3901004881 Rev 011 Low Voltage & Very High Sensitivity Page US4881 Bipolar Hall Switch Data Sheet Feb/06 ...

Page 7

... The resistors RL and Rb can be used to bias the input current. Refer to the part specifications for limiting values has to be higher than The diode D1 provides additional reverse voltage protection. DD Page US4881 Bipolar Hall Switch : OFF ...

Page 8

... ESD Precautions Electronic semiconductor products are sensitive to Electro Static Discharge (ESD). Always observe Electro Static Discharge control procedures whenever handling semiconductor products. 3901004881 Rev 011 Low Voltage & Very High Sensitivity Page US4881 Bipolar Hall Switch Data Sheet Feb/06 ...

Page 9

... Package Information 16.1 SO Package (SOT23-3L) see note 2 3901004881 Rev 011 Low Voltage & Very High Sensitivity Hall plate location Page US4881 Bipolar Hall Switch Data Sheet Feb/06 ...

Page 10

... UA Package (TO-92 flat) 3901004881 Rev 011 Low Voltage & Very High Sensitivity Page US4881 Bipolar Hall Switch Data Sheet Feb/06 ...

Page 11

... Or for additional information contact Melexis Direct: Phone: +32 1367 0495 E-mail: sales_europe@melexis.com 3901004881 Rev 011 Low Voltage & Very High Sensitivity www.melexis.com Europe, Africa, Asia: Phone: +1 603 223 2362 E-mail: sales_usa@melexis.com ISO/TS 16949 and ISO14001 Certified Page US4881 Bipolar Hall Switch America: Data Sheet Feb/06 ...

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