US4881(2006) 查看數據表（PDF） - Melexis Microelectronic Systems

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US4881
(Rev.:2006)

Bipolar Hall Switch Low Voltage & Very High Sensitivity

Melexis Microelectronic Systems  

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

US4881

Bipolar Hall Switch

Low Voltage & Very High Sensitivity

Application Examples

Automotive, Consumer and Industrial

Solid-state switch

Brushless DC motor commutation

Speed detection

Linear position detection

Angular position detection

Proximity detection

Ordering Information

Part No.

US4881

US4881

US4881

US4881

US4881

US4881

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)

Package Code

SO (SOT23-3L)

UA (TO-92)

SO (SOT23-3L)

UA (TO-92)

SO (SOT23-3L)

UA (TO-92)

1 Functional Diagram

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.

3901004881

Rev 011

Page 1 of 11

Data Sheet

Feb/06

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