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Details, datasheet, quote on part number:US5881SO
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Datasheet text preview:
3
Features and Benefits
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Chopper stabilized amplifier stage New miniature package / thin, high reliability package Operation down to 3.5V CMOS for optimum stability, quality and cost
Applications
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Solid state switch Limit switch Current limit Interrupter Current sensing
Ordering Information
Part No. Temperature Suffix Package Code US5881 E (-40oC to 85oC) SO (SOT-23) US5881 E (-40oC to 85oC) UA (TO-92 flat) US5881 L (-40oC to 150oC ) SO (SOT-23) UA (TO-92 flat) US5881 L (-40oC to 150oC ) *Contact factory or sales representative for legacy temperature options
Functional Diagram
Description
The US5881 is a unipolar Hall effect sensor IC fabricated from mixed signal CMOS technology. It incorporates advanced chopper stabilization techniques to provide accurate and stable magnetic switch points. There are many applications for this sensor in addition to those listed above. The design, specifications and performance have been optimized for applications of solid state switches. The output transistor will be switched on (BOP) in the presence of a sufficiently strong South pole magnetic field facing the marked side of the package. Similarly, the output will be switched off (BRP) in the presence of a weaker South field and remain off with "0" field.
SO Package Pin 1 - VDD Pin 2 - Output Pin 3 - GND
VDD
Output
Voltage Regulator
Cho ppe r
GND UA Package Pin 1 - VDD Pin 2 - GND Pin 3 - Output
Note: This is a static-sensitive device; please observe ESD precautions. Reverse VDD protection is not included. For reverse voltage protection, a 100W resistor in series with VDD is recommended.
The SOT-23 device is reversed from the UA package. The SOT-23 output transistor will be switched on (BOP) in the presence of a sufficiently strong North pole magnetic field subjected to the marked face.
901005881 Rev. 005
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Aug/02
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S5881 Electrical Specifications
DC operating parameters: TA = 25oC, VDD = 12VDC (unless otherwise specified). Parameter Supply Voltage Supply Current Saturation Voltage Output Leakage Output Rise Time Output Fall Time Symbol Test Conditions V DD Operating I DD VDS(on) IOFF tr tf BBOP BMax 24 5.0 0.5
Units V mA V A
10.0
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0.18
U
S5881 Magnetic Specifications
Parameter Operating Point3 Release Point Hysteresis Symbol Test Conditions BOP B RP Bhys Min 15 9.5 2.0 Typ 25 20 4.3 Max 30 5.5 Units mT mT mT
Notes: 1. 1 mT = 10 Gauss. 2. The SOT-23 device is reversed from the UA package. The SOT-23 output transistor will be switched on (BOP) in the presence of a sufficiently strong North pole magnetic field subjected to the markedface.
Absolute Maximum Ratings
Supply Voltage (Operating), VDD Supply Current (Fault), IDD Output Voltage, VOUT Output Current (Fault), IOUT Power Dissipation, PD Operating Temperature Range, TA Storage Temperature Range, TS Maximum Junction Temp, TJ 24V 50mA 24V 50mA 100mW -40°C to 150°C -65°C to 150°C 175°C
3901005881 Rev. 005
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Aug/02
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Performance Graphs
Typical Magnetic Switch Points vs. Vdd
35.0 5881
35.0
T yp ical Magnetic Switch Points vs. Temperature
5881
30.0 25.0 Field Strength (mT)
Field Strength (mT)
30.0
25.0
20.0 15.0
20.0
15.0
10.0 5.0
10.0
5.0
0.0 0 10 V dd (V) 20 30
0.0 -50 0 50 100 150 200 T e mpe ra ture C°
Mini mum & Maximum Magnetic Switch Points vs. Temperature
5881 35.0
Output Voltage Output us vers Voltage versus Flux Density Flux Density
30
5881
30.0
24
25.0 F ield Strength (mT)
VDD BOP
20.0 15.0 10.0 5.0 0.0 -50.0
Output Voltage (V)
18
12
6 BRP Vout
0
50.0
150.0
-20
-10
0
10
20
30
40
T e m p e r atu r e C°
Flux Density (mT)
901005881 Rev. 005
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Aug/02
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