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Melexis

US4881 Datasheet Preview

US4881 Datasheet

Bipolar Hall Switch

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US4881
Bipolar Hall Switch
Low Voltage & Very High Sensitivity
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
Thin SOT23 3L and flat TO-92 3L both RoHS
Compliant packages
Applications
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
US4881ESE-AAA-000-RE
US4881EUA-AAA-000-BU
US4881LSE-AAA-000-RE
US4881LUA-AAA-000-BU
Temperature Code
E (-40°C to 85°C)
E (-40°C to 85°C)
L (-40°C to 150°C)
L (-40°C to 150°C)
Package Code
SE (TSOT-3L)
UA (TO-92)
SE (TSOT-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 ranges make it suitable for use in
automotive, industrial and consumer low voltage
applications.
The device is 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.
REVISION 015 JAN 17, 2018
3901004881
Page 1 of 12




Melexis

US4881 Datasheet Preview

US4881 Datasheet

Bipolar Hall Switch

No Preview Available !

US4881
Bipolar Hall Switch
Low Voltage & Very High Sensitivity
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 ......................................................................................................................................................... 4
8. Output Behaviour versus Magnetic Pole................................................................................................................................ 4
9. Detailed General Description ................................................................................................................................................. 5
10. Unique Features .................................................................................................................................................................. 5
11. Performance Graphs............................................................................................................................................................ 6
11.1. Magnetic parameters vs. TA .............................................................................................................................................. 6
11.2. Magnetic parameters vs. VDD ............................................................................................................................................ 6
11.3. VDSon vs. TA........................................................................................................................................................................... 6
11.4. VDSon vs. VDD ........................................................................................................................................................................ 6
11.5. IDD vs. TA .............................................................................................................................................................................. 6
11.6. IDD vs. VDD ............................................................................................................................................................................ 6
11.7. IOFF vs. TA ............................................................................................................................................................................. 7
11.8. IOFF vs. VDD ........................................................................................................................................................................... 7
12. Test conditions .................................................................................................................................................................... 7
12.1. Supply Current ................................................................................................................................................................... 7
12.2. Output Saturation Voltage ................................................................................................................................................ 7
12.3. Output Leakage Current .................................................................................................................................................... 7
12.4. Magnetic Thresholds ......................................................................................................................................................... 7
13. Application Information....................................................................................................................................................... 8
13.1. Typical Three-Wire Application Circuit ............................................................................................................................. 8
13.2. Two-Wire Circuit ................................................................................................................................................................ 8
13.3. Automotive and Harsh, Noisy Environments Three-Wire Circuit .................................................................................... 8
13.4. Application Comments....................................................................................................................................................... 8
14. Standard information regarding manufacturability of Melexis products with different soldering processes ........................ 9
15. ESD Precautions................................................................................................................................................................... 9
16. Package Information.......................................................................................................................................................... 10
16.1. SE Package (TSOT-3L)....................................................................................................................................................... 10
16.2. UA Package (TO-92 flat) ................................................................................................................................................... 11
17. Contact.............................................................................................................................................................................. 12
18. Disclaimer.......................................................................................................................................................................... 12
REVISION 015 JAN 17, 2018
3901004881
Page 2 of 12


Part Number US4881
Description Bipolar Hall Switch
Maker Melexis
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US4881 Datasheet PDF






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