A3163 Datasheet

A3163
Hall Effect Switch for 2-Wire Applications
Discontinued Product
These parts are no longer in production The device should not be
purchased for new design applications. Samples are no longer available.
Date of status change: May 7, 2013
Recommended Substitutions:
For existing customer transition, and for new customers or new applications, refer to the A1150.
NOTE: For detailed information on purchasing options, contact your
local Allegro field applications engineer or sales representative.
Allegro MicroSystems, LLC reserves the right to make, from time to time, revisions to the anticipated product life cycle plan
for a product to accommodate changes in production capabilities, alternative product availabilities, or market demand. The
information included herein is believed to be accurate and reliable. However, Allegro MicroSystems, LLC assumes no responsibility for its use; nor for any infringements of patents or other rights of third parties which may result from its use.
Data Sheet
27621.31a
3163
HALL-EFFECT SWITCH
FOR 2-WIRE APPLICATIONS
Suffix 'UA' Pinning
(ultra-mini SIP)
2
3
SUPPLY
GROUND
GROUND
X
1
Dwg. PH-003-7A
Pinning is shown viewed from branded side.
ABSOLUTE MAXIMUM RATINGS
at TA = +25°C
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 ....... +170°C
Operating Temperature Range,
TA ........................ -40°C to +85°C
Storage Temperature Range,
TS ...................... -65°C to +170°C
This Hall-effect switch is a monolithic integrated circuit designed to
operate continuously over extended temperatures to +85°C. 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').
FEATURES and BENEFITS
■
■
■
■
■
■
■
■
■
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)
700
X
Suffix "UA"
RθJA = 165°C/W
600
Suffix "LT"
RθJA = 180°C/W
500
400
NC
200
1
2
GROUND
300
SUPPLY
3
100
0
20
40
60
100
80
120
AMBIENT TEMPERATURE in °C
140
160
180
Dwg. GH-046-6A
Dwg. PH-003-6
NO (INTERNAL)
CONNECTION
ALLOWABLE PACKAGE POWER DISSIPATION in MILLIWATTS
800
Pinning is shown viewed from branded side.
2
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 2002 Allegro MicroSystems, Inc.
3163
HALL-EFFECT SWITCH
FOR 2-WIRE APPLICATIONS
ELECTRICAL CHARACTERISTICS over operating voltage and temperature ranges.
Limits
Characteristic
Symbol
Supply Voltage
VCC
Output Current
Output Slew Rate
Output Settling Time
Reverse Battery Current
Test Conditions
Min.
Typ.
Max.
Units
Operating
3.5
—
24
V
IOUT(H)
B > BOP
12
14
17
mA
IOUT(L)
B < BRP
5.0
5.6
6.9
mA
di/dt
CL = 20 pF
—
7.0
20
mA/µs
tsd
CL = 20 pF
—
—
20
µs
ICCR
VRCC = -16 V
—
—
-15
mA
MAGNETIC CHARACTERISTICS over operating supply voltage and temperature ranges.
Limits
Characteristic
Symbol
Min.
Typ.
Max.
Units
Operate Point (output turns on)
BOP
–
98
160
G
Release Point (output turns off)
BRP
30
79
–
G
Hysteresis (BOP – BRP)
Bhys
5.0
19
40
G
NOTES: 1. Typical Data is at TA = +25°C 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
LOAD CURRENT
120
20
SWITCH POINTS in GAUSS
110
LOAD CURRENT (I OUT ) in mA
OPERATE POINT, BOP
VCC = 3.5 V
VCC = 12 V
VCC = 24 V
100
90
80
RELEASE POINT, BRP
VCC = 3.5 V
VCC = 12 V
VCC = 24 V
70
IOUT(H), B > BOP
VCC = 24 V
VCC = 12 V
VCC = 3.5 V
15
10
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
AMBIENT TEMPERATURE in ° C
Dwg. GH-044-5
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
FUNCTIONAL DESCRIPTION
ELEMENT 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
A
1
2
3
Dwg. MH-008-8A
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.
Suffix “UA”
ACTIVE AREA DEPTH
0.0195"
0.50 mm
NOM
Operation. The output of these devices turns on when a
magnetic field (south pole) perpendicular to the Hall
element 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 device 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.
0.080"
2.04 mm
0.056"
1.44 mm
A
BRANDED
SURFACE
1
2
3
+I
Dwg. MH-011-9B
Allegro
OUTPUT CURRENT
IOUT(H)
B RP
B OP
IOUT(L)
0
0
+B
FLUX DENSITY
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Dwg. GH-007-8
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 element) 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 RθJA)
where PD is the maximum supply power
IOUT(H) x VCC
and RθJA 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
–
+
3
2
X
0.95 V
0.1 µF
100 Ω
1
SUPPLY
Dwg. EH-011-2A
TYPICAL APPLICATION
Extensive applications information for Hall-effect devices 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
www.allegromicro.com
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 devices 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
Test Method and Test Conditions
Test Length
Samples
Biased Humidity (HAST)
TA = 130°C, RH = 85%
50 hrs
77
VCC = VOUT = 5 V
High-Temperature
Operating Life (HTOL)
JESD22-A108,
TA = 150°C, TJ ≤ 165°C
408 hrs
77
VCC = 24 V,
VOUT = 20 V
Accelerated HTOL
TA = 175°C, TJ = 190°C
504 hrs
77
VCC = 24 V,
VOUT = 20 V
Autoclave, Unbiased
JESD22-A102, Condition C,
TA = 121°C, 15 psig
96 hrs
77
High-Temperature
(Bake) Storage Life
MIL-STD-883, Method 1008,
TA = 170°C
1000 hrs
77
Temperature Cycle
MIL-STD-883, Method 1010,
-65°C to +150°C
500 cycles
77
Latch-Up
—
Pre/Post
Reading
6
Electro-Thermally
Induced Gate Leakage
—
Pre/Post
Reading
6
ESD,
Human Body Model
CDF-AEC-Q100-002
Pre/Post
Reading
3 per
test
Test to failure,
All leads > 4 kV
ESD,
Machine Model
JESD22-A115
Pre/Post
Reading
3 per
test
Test to failure,
All leads >700 V
Electrical Distributions
Per Specification
—
30
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Comments
7
3163
HALL-EFFECT SWITCH
FOR 2-WIRE APPLICATIONS
PACKAGE DESIGNATOR 'LT'
(SOT89/TO-243AA)
Dimensions in Inches
(for reference only)
0.181
0.173
0.072
0.064
0.167
0.155
2
1
Dimensions in Millimeters
(controlling dimensions)
0.063
0.055
3
0.102
0.090
0.0173
0.0138
0.090
0.084
4.25
3.94
0.0189
0.0142
0.0221
0.0173
0.047
0.035
0.059
BSC
4.60
4.40
1.83
1.62
BSC
3.00
BSC
Dwg. MA-009-3A in
Dwg. MA-009-3A mm
2.5
2.0
B
0.031
A
0.102
0.8
2.6
A
4.6
0.181
1
2
3 0.047
1
2
3
1.2
0.028
0.031
0.7
0.8
TYP
TYP
TYP
TYP
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
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
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 (≤240°C) reflow-soldering techniques are recommended for SOT89 devices.
8
2.29
2.13
0.56
0.44
1.50
0.098
0.079
B
2.60
2.29
3
0.44
0.35
0.48
0.36
1.20
0.89
0.118
BSC
2
1
1.60
1.40
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 Millimeters
(for reference only)
Dimensions in Inches
(controlling dimensions)
0.164
0.159
4.17
4.04
0.062
0.058
45°
1.57
1.47
45°
0.122
0.117
3.10
2.97
45°
45°
0.085
1
2
3
0.031
2.16
1
2
0.79
3
MAX
MAX
0.640
0.600
16.26
15.24
0.0173
0.0138
0.0189
0.0142
SEE NOTE
0.44
0.35
0.48
0.36
SEE NOTE
1.27
0.050
BSC
BSC
Dwg. MH-014E in
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
0.108"
(2.74 mm)
0.620"
0.500"
(15.7 mm
12.7 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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