US4881KUA MELEXIS [Melexis Microelectronic Systems], US4881KUA Datasheet

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US4881KUA

Manufacturer Part Number
US4881KUA
Description
Bipolar Hall Switch Low Voltage & Very High Sensitivity
Manufacturer
MELEXIS [Melexis Microelectronic Systems]
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
US4881KUA
Manufacturer:
SITRONIX
Quantity:
2 000
Part Number:
US4881KUA/US4881EUA
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

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US4881KUA Summary of contents

Page 1

Features and Benefits 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 Ordering Information Part No. US4881 ...

Page 2

Table of Contents 1 Functional Diagram ........................................................................................................ 1 2 General Description........................................................................................................ 1 3 Glossary of Terms .......................................................................................................... 3 4 Absolute Maximum Ratings ........................................................................................... 3 5 Pin Definitions and Descriptions................................................................................... 3 6 General Electrical Specifications .................................................................................. 4 7 Magnetic Specifications ................................................................................................. ...

Page 3

Glossary of Terms MilliTesla (mT), Gauss Units of magnetic flux density: 1mT = 10 Gauss RoHS Restriction of Hazardous Substances TSOT Thin Small Outline Transistor (TSOT package) – also referred with the Melexis package code “SE” ESD Electro-Static Discharge ...

Page 4

General Electrical Specifications DC Operating Parameters Parameter Table 3: Electrical specifications 7 Magnetic Specifications DC Operating Parameters Parameter Symbol Table 4: Magnetic specifications Note 1: For typical values, please refer to ...

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 ...

Page 6

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

Page 7

Application Information 12.1 Typical Three-Wire Application Circuit 12.3 Automotive and Harsh, Noisy Environments Three-Wire Circuit 13 Application Comments For proper operation, a 100nF bypass capacitor should be placed as close as possible to the device between the V and ...

Page 8

Standard information regarding manufacturability of Melexis products with different soldering processes Our products are classified and qualified regarding soldering technology, solderability and moisture sensitivity level according to following test methods: Reflow Soldering SMD’s (Surface Mount Devices) IPC/JEDEC J-STD-020 • ...

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

Disclaimer Devices sold by Melexis are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. Melexis makes no warranty, express, statutory, implied description regarding the information set forth herein or regarding the ...

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