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3163
Suffix 'UA' Pinning
(ultra-mini SIP)
HALL-EFFECT SWITCH FOR 2-WIRE APPLICATIONS
This Hall-effect switch is a monolithic integrated circuit designed to operate continuously over extended temperatures to +85C. The unipolar switching characteristic makes this device ideal for use with a simple bar or rod magnet. The A3163ELT and A3163EUA are identical except for package. Each device includes a voltage regulator for operation with supply voltages of 3.5 to 24 volts, reverse-battery protection, quadratic Hallvoltage generator for low offset, temperature compensation circuitry, small-signal amplifier, Schmitt trigger, and a constant-current opencollector output, wired internally for true 2-wire operation. Noise radiation is limited by control of the output-current slew rate. Two package styles provide a magnetically optimized package for most applications. Suffix `LT' is a miniature SOT89/TO-243AA transistor package for surface-mount applications; suffix `UA' is a three-lead ultra-mini SIP for through-hole mounting; it is also available with lead forming for surface-mount applications (suffix 'UA-TL').
Data Sheet 27621.31
X
1
2
3
Dwg. PH-003-7A
GROUND
GROUND
SUPPLY
FEATURES and BENEFITS
s s s s s s s s s
Pinning is shown viewed from branded side.
ABSOLUTE MAXIMUM RATINGS
at TA = +25C
Supply Voltage, VCC ................ 26.5 V Reverse Battery Voltage, VRCC .... -16 V Magnetic Flux Density, B ..... Unlimited Package Power Dissipation, PD See Graph Junction Temperature, TJ ....... +170C Operating Temperature Range, TA ........................ -40C to +85C Storage Temperature Range, TS ...................... -65C to +170C
Internal Current Regulator for 2-Wire Operation Output Slew Rate Controlled 3.5 V to 24 V Operation ... Needs Only An Unregulated Supply Reverse Battery Protection Excellent Temperature Stability Activate with Small, Commercially Available Permanent Magnets Small Size Solid-State Reliability ... No Moving Parts Resistant to Physical Stress
Always order by complete part number, e.g., A3163ELT .
3163 HALL-EFFECT SWITCH FOR 2-WIRE APPLICATIONS
FUNCTIONAL BLOCK DIAGRAM
SUPPLY REG.
X
GROUND
Dwg. FH-017-1
Suffix 'LT' Pinning
(SOT89/TO-243AA)
800
ALLOWABLE PACKAGE POWER DISSIPATION in MILLIWATTS
700
X
Suffix "UA" RJA = 165C/W 600 Suffix "LT" RJA = 180C/W
500
400
NC
300
200
1
2
3
100
GROUND
0 20 40 60 100 80 120 AMBIENT TEMPERATURE in C 140 160 180
Dwg. GH-046-6A
Dwg. PH-003-6
Pinning is shown viewed from branded side.
2
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright (c) 2002 Allegro MicroSystems, Inc.
NO (INTERNAL) CONNECTION
SUPPLY
3163 HALL-EFFECT SWITCH FOR 2-WIRE APPLICATIONS
ELECTRICAL CHARACTERISTICS over operating voltage and temperature ranges.
Limits Characteristic Supply Voltage Output Current Symbol VCC IOUT(H) IOUT(L) Output Slew Rate Output Settling Time Reverse Battery Current di/dt tsd ICCR Test Conditions Operating B > BOP B < BRP CL = 20 pF CL = 20 pF
VRCC = -16 V
Min. 3.5 12 5.0 -- -- --
Typ. -- 14 5.6 7.0 -- --
Max. 24 17 6.9 20 20 -15
Units V mA mA mA/s s mA
MAGNETIC CHARACTERISTICS over operating supply voltage and temperature ranges.
Limits Characteristic Operate Point (output turns on) Release Point (output turns off) Hysteresis (BOP - BRP) Symbol BOP BRP Bhys Min. - 30 5.0 Typ. 98 79 19 Max. 160 - 40 Units G G G
NOTES: 1. Typical Data is at TA = +25C and VCC = 12 V and is for design information only. 2. 1 gauss (G) is exactly equal to 0.1 millitesla (mT).
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3
3163 HALL-EFFECT SWITCH FOR 2-WIRE APPLICATIONS
TYPICAL OPERATING CHARACTERISTICS
SWITCH POINTS
120
LOAD CURRENT
20
110
OPERATE POINT, BOP VCC = 3.5 V VCC = 12 V VCC = 24 V
LOAD CURRENT (I OUT ) in mA
SWITCH POINTS in GAUSS
100
15
IOUT(H), B > BOP VCC = 24 V VCC = 12 V VCC = 3.5 V
90
10
80
70
RELEASE POINT, BRP VCC = 3.5 V VCC = 12 V VCC = 24 V
IOUT(L), B < BRP VCC = 3.5 V VCC = 12 V VCC = 24 V
5.0
60
50 -50 -25 0 25 50 75 100 125 150
0 -50
-25
0
25
50
75
100
125
150
AMBIENT TEMPERATURE in C
Dwg. GH-044-5
AMBIENT TEMPERATURE in C
Dwg. GH-028-10
4
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
3163 HALL-EFFECT SWITCH FOR 2-WIRE APPLICATIONS
SENSOR LOCATIONS
(0.005" [0.13 mm] die placement)
Suffix "LT"
ACTIVE AREA DEPTH 0.0305" 0.775 mm NOM 0.088" 2.24 mm 0.045" 1.14 mm
FUNCTIONAL DESCRIPTION
Operation. The output of these devices turns on when a magnetic field (south pole) perpendicular to the Hall sensor exceeds the operate point threshold (BOP). After turn on, the output will source current (IOUT(H)) equal to the device operating current plus a current source. When the magnetic field is decreased (south pole) below the release point (BRP), the output will source current (IOUT(L)) equal to the Hall-effect sensor operating current with the current source turned off. The difference in the magnetic operate and release points is the hysteresis (Bhys) of the device. The hysteresis allows clean switching of the output even in the presence of external mechanical vibration or electrical noise. Powering up in the absence of a magnetic field (less than BOP and higher than BRP) will allow an indeterminate output state. The correct state is warranted after the first excursion beyond BOP or BRP.
0.056" 1.44 mm
A
1 2 3
Dwg. MH-008-8A
Suffix "UA"
ACTIVE AREA DEPTH 0.0195" 0.50 mm NOM 0.080" 2.04 mm
A
BRANDED SURFACE 1 2 3
+I
Dwg. MH-011-9B
IOUT(H)
OUTPUT CURRENT
Allegro
B RP
B OP
IOUT(L)
0 0 FLUX DENSITY +B
Dwg. GH-007-8
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5
3163 HALL-EFFECT SWITCH FOR 2-WIRE APPLICATIONS
APPLICATIONS INFORMATION
External Components. It is strongly recommended that an external bypass capacitor be connected (in close proximity to the Hall sensor) between the supply and ground of the device. Power Derating. Due to the internal device power dissipation, the junction temperature (TJ) will be higher than the ambient temperature (TA). To ensure that the absolute maximum junction temperature is not exceeded, the following equations should be applied: TJ = TA + (PD x RJA) where PD is the maximum supply power IOUT(H) x VCC and RJA is the package thermal resistance. The specified limit for IOUT(H) should be used to ensure a margin of safety. Magnets. The simplest form of magnet that will operate this device is a ring magnet. Other methods of operation, such as linear magnets, are possible.
'UA' PACKAGE 0.95 V - +
X
3
0.1 F
100 SUPPLY
1
2
Dwg. EH-011-2A
TYPICAL APPLICATION Extensive applications information for Hall-effect sensors is available in: * Hall-Effect IC Applications Guide, Application Note 27701; * Hall-Effect Devices: Soldering, Gluing, Potting, Encapsulating, and Lead Forming, Application Note 27703.1; * Soldering of Through-Hole Hall-Sensor Dervices, Application Note 27703; * Soldering of Surface-Mount Hall-Sensor Devices, Application Note 27703.2; and * Two-Wire Hall-Effect Sensors, Application Note 27704. All are provided in Allegro Electronic Data Book, AMS-702 or at
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6
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
3163 HALL-EFFECT SWITCH FOR 2-WIRE APPLICATIONS
CRITERIA FOR DEVICE QUALIFICATION
All Allegro sensors are subjected to stringent qualification requirements prior to being released to production. To become qualified, except for the destructive ESD tests, no failures are permitted. Qualification Test Biased Humidity (HAST) High-Temperature Operating Life (HTOL) Accelerated HTOL Test Method and Test Conditions TA = 130C, RH = 85% JESD22-A108, TA = 150C, TJ 165C TA = 175C, TJ = 190C JESD22-A102, Condition C, TA = 121C, 15 psig MIL-STD-883, Method 1008, TA = 170C MIL-STD-883, Method 1010, -65C to +150C -- Test Length 50 hrs 408 hrs Samples 77 77 Comments VCC = VOUT = 5 V VCC = 24 V, VOUT = 20 V VCC = 24 V, VOUT = 20 V
504 hrs
77
Autoclave, Unbiased
96 hrs
77
High-Temperature (Bake) Storage Life Temperature Cycle
1000 hrs
77
500 cycles
77
Latch-Up
Pre/Post Reading Pre/Post Reading Pre/Post Reading Pre/Post Reading --
6
Electro-Thermally Induced Gate Leakage ESD, Human Body Model ESD, Machine Model Electrical Distributions
--
6
CDF-AEC-Q100-002
3 per test 3 per test 30
Test to failure, All leads > 4 kV Test to failure, All leads >700 V
JESD22-A115
Per Specification
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7
3163 HALL-EFFECT SWITCH FOR 2-WIRE APPLICATIONS
PACKAGE DESIGNATOR 'LT'
(SOT89/TO-243AA) Dimensions in Inches (for reference only) Dimensions in Millimeters (controlling dimensions)
0.181 0.173 0.072 0.064 0.167 0.155 0.102 0.090
0.063 0.055
0.0173 0.0138
4.60 4.40 1.83 1.62 4.25 3.94 2.60 2.29
1.60 1.40
0.44 0.35
1
2
3
0.090 0.084
1
2
3
2.29 2.13
0.047 0.035 0.059
BSC
0.0189 0.0142 0.0221 0.0173 0.118
BSC
Dwg. MA-009-3A in
1.20 0.89 1.50
BSC
0.48 0.36 0.56 0.44 3.00
BSC
Dwg. MA-009-3A mm
0.098 0.079 B A 0.031 0.102 0.181 3 0.047 0.031
TYP
2.5 2.0 B A 0.8 2.6 4.6 1.2 0.8
TYP
1 0.028
TYP
2
1 0.7
TYP
2
3
Pads 1, 2, 3, and A -- Standard SOT89 Layout Pads 1, 2, 3, and B -- Low-Stress Version Pads 1, 2, and 3 only -- Lowest Stress, But Not Self Aligning
Dwg. MA-012-3 in
Pads 1, 2, 3, and A -- Standard SOT89 Layout Pads 1, 2, 3, and B -- Low-Stress Version Pads 1, 2, and 3 only -- Lowest Stress, But Not Self Aligning
Dwg. MA-012-3 mm
NOTES: 1. Exact body and lead configuration at vendor's option within limits shown. 2. Supplied in bulk pack (500 pieces per bag) or add "TR" to part number for tape and reel. 3. Only low-temperature (240C) reflow-soldering techniques are recommended for SOT89 devices.
8
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
3163 HALL-EFFECT SWITCH FOR 2-WIRE APPLICATIONS
PACKAGE DESIGNATOR `UA'
Dimensions in Inches (controlling dimensions)
0.164 0.159
Dimensions in Millimeters (for reference only)
4.17 4.04
45
0.062 0.058
45
1.57 1.47
0.122 0.117 45 0.031
3.10 2.97 45 0.79
0.085
MAX
1
2
3
2.16
MAX
1
2
3
0.640 0.600
0.0173 0.0138
16.26 15.24
0.44 0.35
SEE NOTE
0.0189 0.0142
SEE NOTE
0.48 0.36
0.050
BSC
Dwg. MH-014E in
1.27
BSC
Dwg. MH-014E mm
Radial Lead Form (order A3163xUA-LC)
NOTES: 1. Tolerances on package height and width represent allowable mold offsets. Dimensions given are measured at the widest point (parting line). 2. Exact body and lead configuration at vendor's option within limits shown. 3. Height does not include mold gate flash. 4. Recommended minimum PWB hole diameter to clear transition area is 0.035" (0.89 mm). 5. Where no tolerance is specified, dimension is nominal. 6. Supplied in bulk pack (500 pieces per bag).
1
2
3
0.620" 0.500" (15.7 mm 12.7 mm)
0.108" (2.74 mm)
0.100" (2.5 mm)
Dwg. MH-026
NOTE: Lead-form dimensions are the nominals produced on the forming equipment. No dimensional tolerance is implied or guaranteed for bulk packaging (500 pieces per bag).
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9
3163 HALL-EFFECT SWITCH FOR 2-WIRE APPLICATIONS
The products described herein are manufactured under one or more of the following U.S. patents: 5,045,920; 5,264,783; 5,442,283; 5,389,889; 5,581,179; 5,517,112; 5,619,137; 5,621,319; 5,650,719; 5,686,894; 5,694,038; 5,729,130; 5,917,320; and other patents pending. Allegro MicroSystems, Inc. reserves the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in the performance, reliability, or manufacturability of its products. Before placing an order, the user is cautioned to verify that the information being relied upon is current. Allegro products are not authorized for use as critical components in life-support appliances, devices, or systems without express written approval. The information included herein is believed to be accurate and reliable. However, Allegro MicroSystems, Inc. assumes no responsibility for its use; nor for any infringements of patents or other rights of third parties that may result from its use.
10
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000

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