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Melexis Microelectronic Systems

US2881 Datasheet Preview

US2881 Datasheet

Bipolar Hall Switch

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US2881
Bipolar Hall Switch Very High Sensitivity
Features and Benefits
Wide operating voltage range from 3.5V to 24V
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
Product code
US2881
US2881
US2881
US2881
Temperature Code
E
E
L
L
Package Code
SE
UA
SE
UA
Option code
AAA-000
AAA-000
AAA-000
AAA-000
Packing form code
RE
BU
RE
BU
Legend:
Temperature code: L(-40 to 150°C)
E(-40 to 85°C)
Package Code:
SE = TSOT-23L
UA = TO92-3L
Packing Form:
BU = Bulk
RE = Reel
Ordering Example: US2881ESE-AAA-000-RE
1. Functional Diagram
2. General Description
The Melexis US2881 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.
Thanks to its wide operating voltage range and
extended choice of temperature range, it is suitable
for use in automotive and consumer 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 016 13 JUNE 2019
3901002881
Page 1 of 12




Melexis Microelectronic Systems

US2881 Datasheet Preview

US2881 Datasheet

Bipolar Hall Switch

No Preview Available !

US2881
Bipolar Hall Switch Very High Sensitivity
Contents
Features and Benefits................................................................................................................................ 1
Applications............................................................................................................................................... 1
Ordering information................................................................................................................................. 1
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
14. Application Comments......................................................................................................................... 8
15. Standard information regarding manufacturability of Melexis products with different soldering
processes.............................................................................................................................................. 9
16. ESD Precautions................................................................................................................................... 9
17. Package Information.......................................................................................................................... 10
17.1. SE Package (TSOT-3L) .....................................................................................................................10
17.2. UA Package (TO-92 flat)..................................................................................................................11
18. Contact .............................................................................................................................................. 12
19. Disclaimer.......................................................................................................................................... 12
REVISION 016 13 JUNE 2019
3901002881
Page 2 of 12


Part Number US2881
Description Bipolar Hall Switch
Maker Melexis Microelectronic Systems
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US2881 Datasheet PDF





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