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US3881
Hall Latch – Low Voltage & High Sensitivity
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US3881 General Description
The Melexis US3881 is a Hall-effect latch 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 Thin Small Outline Transistor (TSOT) 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.
US3881 Features and Benefits
Operating voltage range from 2.2V to 18V
High magnetic sensitivity – Multi-purpose
CMOS technology
Chopper-stabilized amplifier stage
Low current consumption
Open drain output
Thin SOT23 3L and flat TO-92 3L both RoHS Compliant packages
SE package North Pole Active
UA package South Pole Active
US3881 Applications
Flow Meter
Application Note
File Type
Size
Revision
Date
Action
Hall Applications Guide
PDF
498.0 KB
10/25/2005
Soldering Application Note and Recommendations
PDF
137.7 KB
2.1
10/9/2012
Trim and form recommendations
PDF
127.1 KB
3.11
4/13/2009
US3881 Documentation
DataSheet
File Type
Size
Revision
Date
Action
MLX92211 DataSheet
PDF
415.8 KB
3
8/3/2012
US3881 DataSheet
PDF
799.9 KB
016
7/9/2012
How It Works
File Type
Size
Revision
Date
Action
The Hall Effect Latch
SWF
14.9 KB
002b
2/23/2007
Virtual Hall Effect Demoboard
SWF
164.0 KB
12/9/2002
What is the Hall Effect?
SWF
16.8 KB
1
3/15/2007
Reference
File Type
Size
Revision
Date
Action
BLDC Fan Motor Driver Quick Reference
PDF
1.7 MB
004
10/4/2011
Hall Effect Latch and Switch Quick Reference
PDF
993.5 KB
8.0
3/15/2013
US3881 Tools
US3881 Environmental Information
Environmental Information
File Type
Size
Revision
Date
Action
Green / Halogen Free Compliance Declaration US3881
PDF
35.4 KB
2.0
10/12/2012
Package Material Declaration - TSOT3 GR - S1
PDF
145.1 KB
8.0
10/12/2012
Package Material Declaration - UA GR - S3
PDF
137.0 KB
8.0
10/12/2012
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US3881 In The Press
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Buy US3881
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