A3518LUA-TL [ALLEGRO]
Hall Effect Sensor, 20mT Max, 0.2-4.70V, BICMOS, Plastic/epoxy, Rectangular, 3 Pin, Through Hole Mount, ULTRA MINI, SIP-3;
| 型号： | A3518LUA-TL |
| 厂家： | 
ALLEGRO MICROSYSTEMS |
| 描述： | Hall Effect Sensor, 20mT Max, 0.2-4.70V, BICMOS, Plastic/epoxy, Rectangular, 3 Pin, Through Hole Mount, ULTRA MINI, SIP-3 信息通信管理 输出元件 传感器 换能器 |
| 文件： | 总12页 (文件大小：173K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
3517
3518 AND
RATIOMETRIC, LINEAR HALL-EFFECT SENSORS
FOR HIGH-TEMPERATURE OPERATION
The A3517xUA and A3518xUA are sensitive, temperature-stable linear
Hall-effect sensors with greatly improved offset characteristics. Ratiometric,
linear Hall-effect sensors provide a voltage output that is proportional to the
applied magnetic field and have a quiescent output voltage that is approxi-
mately 50% of the supply voltage. These magnetic sensors are ideal for use in
linear and rotary position sensing systems in the harsh environments of
automotive and industrial applications over extended temperatures to -40°C
and +150°C. The A3517xUA features an output sensitivity of 5 mV/G while
the A3518xUA has an output sensitivity of 2.5 mV/G. See the Magnetic
Characteristics table for complete, individual device parametrics.
V
CC
Each BiCMOS monolithic circuit integrates a Hall element, improved
temperature-compensating circuitry to reduce the intrinsic sensitivity drift of
the Hall element, a small-signal high-gain amplifier, and a rail-to-rail low-
impedance output stage.
1
2
3
A proprietary dynamic offset cancelation technique, with an internal high-
frequency clock, reduces the residual offset voltage, which is normally caused
by device overmolding, temperature dependancies, and thermal stress. This
technique produces devices that have an extremely stable quiescent output
voltage, are immune to mechanical stress, and have precise recoverability after
temperature cycling. Many problems normally associated with low-level
analog signals are minimized by having the Hall element and amplifier in a
single chip. Output precision is obtained by internal gain and offset trim
adjustments during the manufacturing process.
Dwg. PH-006
Pinning is shown viewed from branded side.
These reduced-cost devices are supplied in a 3-pin ultra-mini-SIP “UA”
package only.
ABSOLUTE MAXIMUM RATINGS
FEATURES
Supply Voltage, VCC ......................... 8.0 V
Output Voltage, VO ........................... 8.0 V
Output Sink Current, IO .................. 10 mA
Magnetic Flux Density, B ......... Unlimited
Package Power Dissipation,
I
I
I
I
I
I
I
I
I
Temperature-Stable Quiescent Output Voltage
Precise Recoverability After Temperature Cycling
Output Voltage Proportional to Applied Magnetic Field
Ratiometric Rail-to-Rail Output
Improved Sensitivity
PD .................................... See Graph
Operating Temperature Range*, TA
Suffix S– .................... -20°C to +85°C
Suffix L–....................-40°C to +150°C
Storage Temperature Range,
4.5 V to 5.5 V Operation
Immune to Mechanical Stress
Small Package Size
Solid-State Reliability
TS ............................. -65°C to +170°C
* Infrequent excursions permitted; see
Applications Information.
Always order by complete part number, e.g., A3517SUA .
3517 AND 3518
RATIOMETRIC,
LINEAR HALL-EFFECT SENSORS
FOR HIGH-TEMP. OPERATION
FUNCTIONAL BLOCK DIAGRAM
1
SUPPLY
Vcc
3
2
OUTPUT
GROUND
+
X
–
+
–
Dwg. FH-016A
Vcc/2
700
600
500
400
300
RθJA = 206°C/W
200
100
0
20
40
60
80
100
120
140
160
180
AMBIENT TEMPERATURE in °C
Dwg. GH-046-1
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
2
Copyright © 1997, 2000 Allegro MicroSystems, Inc.
3517 AND 3518
RATIOMETRIC,
LINEAR HALL-EFFECT SENSORS
FOR HIGH-TEMP. OPERATION
ELECTRICAL CHARACTERISTICS over operating temperature range, at VCC = 5 V (unless
otherwise noted).
Limits
Characteristic
Supply Voltage
Supply Current
Symbol
VCC
Test Conditions
Min.
4.5
–
Typ. Max. Units
Operating
5.0
7.2
2.5
5.5
12
V
mA
V
ICC
B = 0, VCC = 6 V, IO = 0
B = 0, IO = 1 mA, TA = 25°C
Quiescent
VOQ
2.2
2.8
Voltage Output
Output Voltage
VOH
VOL
IOLM
B = +X*, IO = 1 mA
B = -X*, IO = -1 mA
B = -X*, VO = 0
–
–
4.7
0.2
–
–
–
V
V
Output
-1.0
-1.5
mA
Source Current Limit
Bandwidth (-3 dB)
Clock Frequency
Output Resistance
BW
fC
–
–
–
–
30
–
–
–
–
kHz
kHz
Ω
170
1.0
400
rO
IO ≤ -2 mA
Wide-Band
eo
B = 0, BW = 10 Hz to 10 kHz,
µV
Output Noise (rms)
IO ≤ -1 mA, CO = 100 pF
NOTE 1 – Typical data is at TA = 25°C and is for design information only.
NOTE 2 – Negative current is defined as coming out of (sourcing) the output.
* This test requires positive and negative fields sufficient to swing the output driver between fully OFF and saturated (ON),
respectively. It is NOT intended to indicate a range of linear operation.
www.allegromicro.com
3
3517 AND 3518
RATIOMETRIC,
LINEAR HALL-EFFECT SENSORS
FOR HIGH-TEMP. OPERATION
MAGNETIC CHARACTERISTICS over operating temperature range, at VCC = 5 V, IO = -1 mA
(unless otherwise noted).
Part Numbers
A3517SUA
A3517LUA
A3518SUA
A3518LUA
Characteristic*
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Units
Operating Temp. Range, TA
Sensitivity at TA = 25°C
∆Sens(∆T) at TA = Max.
∆Sens(∆T) at TA = Min.
-20
–
+85
-40
–
+150
-20
–
+85
-40
–
+150
°C
mV/G
%
4.0 5.0 6.0
-5.0 2.5 10
-9.0 -1.3 6.0
4.0 5.0 6.0
-5.0 2.5 10
-9.0 -1.3 6.0
2.0 2.5 3.0
-5.0 2.5 10
-9.0 -1.3 6.0
2.0 2.5 3.0
-5.0 2.5 10
-9.0 -1.3 6.0
%
†
∆VOQ(∆T)
–
–
–
–
–
–
–
20
–
–
–
–
–
–
–
–
20
–
–
–
–
–
–
–
–
20
–
–
–
–
–
–
–
–
20
–
G
Ratiometry, ∆VOQ(∆V)
Ratiometry, ∆Sens(∆V)
Positive Linearity, Lin+
Negative Linearity, Lin–
Symmetry
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
%
–
–
–
–
%
–
–
–
–
%
–
–
–
–
%
–
–
–
–
%
NOTE 1 – Magnetic flux density is measured at most sensitive area of device located 0.018" (0.46 mm) below the
branded face of the package.
NOTE 2 – 10 G = 1 mT, exactly.
NOTE 3 – Except for ∆Sens(∆T), typical data is at TA = 25°C and is for design information only.
* See Characteristics Definitions for test conditions.
† This calculation (formula 1, next page) yields the device’s equivalent accuracy, over the operating temperature range, in
gauss.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
4
3517 AND 3518
RATIOMETRIC,
LINEAR HALL-EFFECT SENSORS
FOR HIGH-TEMP. OPERATION
CHARACTERISTICS DEFINITIONS
Quiescent Voltage Output. In the quiescent state (no
magnetic field), the output is ideally equal to one-half of
the supply voltage over the operating voltage and tem-
perature range (VOQ ≈ VCC/2). Due to internal component
tolerances and thermal considerations, there is a tolerance
on the quiescent voltage output and on the quiescent
voltage output as a function of supply voltage and ambient
temperature. For purposes of specification, the quiescent
voltage output as a function of temperature is defined as
Ratiometry. The A3517xUA and A3518xUA feature a
ratiometric output. The quiescent voltage output and
sensitivity are proportional to the supply voltage
(ratiometric).
The per cent ratiometric change in the quiescent
voltage output is defined as
VOQ(VCC) / VOQ(5V)
∆VOQ(∆V)
=
x 100%
(4)
VCC / 5 V
VOQ(TA) – VOQ(25°C)
∆VOQ(∆T)
=
(1)
Sens(25°C)
and the per cent ratiometric change in sensitivity is defined
as
This calculation yields the device’s equivalent
accuracy, over the operating temperature range, in gauss.
Sens(VCC) / Sens(5V)
∆Sens(∆V)
=
x 100%
(5)
VCC / 5 V
Sensitivity. The presence of a south-pole magnetic field
perpendicular to the package face (the branded surface)
will increase the output voltage from its quiescent value
toward the supply voltage rail by an amount proportional to
the magnetic field applied. Conversely, the application of
a north pole will decrease the output voltage from its
quiescent value. This proportionality is specified as the
sensitivity of the device and is defined as
Linearity and Symmetry. The on-chip output stage is
designed to provide a linear output to within 500 mV of
either rail with a supply voltage of 5 V. This is equivalent
to approximately 800 gauss of ambient field. Although
application of stronger magnetic fields will not damage
these devices, it will force the output into a non-linear
region. Linearity in per cent is measured and defined as
VO(500G) – VO(-500G)
Sens =
(2)
VO(500G) – VOQ
1000 G
Lin+ =
x 100%
(6)
(7)
2 (VO(250G) – VOQ
)
The stability of sensitivity as a function of tempera-
ture is defined as
VO(-500G) – VOQ
Lin– =
x 100%
2 (VO(-250G) – VOQ
)
Sens(TA) – Sens(25°C)
∆Sens(∆T)
=
x 100%
(3)
Sens(25°C)
and output symmetry as
VO(500G) – VOQ
Sym =
x 100%
(8)
VOQ – VO(-500G)
www.allegromicro.com
5
3517 AND 3518
RATIOMETRIC,
LINEAR HALL-EFFECT SENSORS
FOR HIGH-TEMP. OPERATION
TYPICAL CHARACTERISTICS
9.0
8.0
7.0
6.0
1.4
1.2
Vcc = 5.5 V
Vcc = 5 V
A
m
-1
=
O
I
A
1.0
0.8
m
1
=
O
I
O = 5 mA
I
A
O = 10 m
I
0.6
0.4
150
100
125
125
150
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
AMBIENT TEMPERATURE IN °C
AMBIENT TEMPERATURE IN °C
Dwg. GH-039-2
Dwg. GH-060-1
2.55
2.54
2.53
2.52
6.0
5.0
A3517–
4.0
2.51
2.50
2.49
2.48
A3517–
A3518–
3.0
2.0
1.0
0
A3518–
Vcc = 5 V
Io = -1 mA
Vcc = 5 V
Io = -1 mA
2.47
2.46
2.45
150
150
100
125
100
125
-50
-25
0
25
50
75
-50
-25
0
25
50
75
AMBIENT TEMPERATURE IN °C
AMBIENT TEMPERATURE IN °C
Dwg. GH-067-1
Dwg. GH-066-1
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
6
3517 AND 3518
RATIOMETRIC,
LINEAR HALL-EFFECT SENSORS
FOR HIGH-TEMP. OPERATION
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
Test Method and Test Conditions
Test Length
Samples
Comments
Temperature Humidity
Bias Life
JESD22-A101
TA = 85°C, RH = 85%
1000 hrs
77
Device biased for
minimum power
Bias Life
JESD22-A108
TA = 150°C, TJ = 165°C
1000 hrs
168 hrs
77
77
77
77
77
(Surge Operating Life)
Autoclave, Unbiased
JESD22-A108
TA = 175°C, TJ = 190°C
JESD22-A102
TA = 121°C, 15 psig
96 hrs
High-Temperature
(Bake) Storage Life
JESD22-A103
TA = 170°C
1000 hrs
1000 cycles
Temperature Cycle
JESD22-A104
ESD,
Human Body Model
CDF-AEC-Q100-002
Pre/Post
Reading
3 per
test
Test to failure
All leads > 3 kV
www.allegromicro.com
7
3517 AND 3518
RATIOMETRIC,
LINEAR HALL-EFFECT SENSORS
FOR HIGH-TEMP. OPERATION
APPLICATIONS INFORMATION
TYPICAL CURRENT-SENSING APPLICATION
Calibrated linear Hall devices, which can be used to
determine the actual flux density presented to the sensor in a
particular application, are available.
B ≈ N x 6.9 G/A
For safe, reliable operation, the output should not be pulled
above the supply voltage or pulled below the device ground.
For optimum performance, a 0.1 µF capacitor between the
supply and ground, and a 100 pF capacitor between the output
and ground, should be added.
Dwg. AH-005A
The ratiometric feature is especially valuable when these
devices are used with an analog-to-digital converter. A/D
converters typically derive their LSB step size by ratioing off a
reference voltage line. If the reference voltage varies, the LSB
will vary proportionally. This is a major error source in many
sensing systems. The A3517xUA and A3518xUA can eliminate
this source of error by their ratiometric operation. Because their
gain and offsets are proportional to the supply voltage, if they
are powered from the A/D reference voltage, the sensor output
voltage will track changes in the LSB value.
SENSOR LOCATION
ACTIVE AREA DEPTH
0.018"
0.081"
0.46 mm
2.06 mm
NOM
0.056"
1.42 mm
These devices can withstand infrequent temperature
excursions, beyond the Absolute Maximum Ratings, to
TA = 170°C provided the junction temperature, TJ, does not
exceed 200°C.
A
Extensive applications information on Hall-effect sensors
and magnets is also available in the “Hall-Effect IC Applications
Guide”, which can be found in the latest issue of the Allegro
MicroSystems Electronic Data Book, AMS-702 or Application
Note 27701, or at
BRANDED
SURFACE
1
2
3
Dwg. MH-011-7
www.allegromicro.com
Allegro
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
8
3517 AND 3518
RATIOMETRIC,
LINEAR HALL-EFFECT SENSORS
FOR HIGH-TEMP. OPERATION
TYPICAL POSITION-SENSING APPLICATIONS
(Alnico 8, dimensions in inches)
VCC
VCC
+
+
0.21
D
N
S
S
N
SENSOR DEPTH
BELOW PACKAGE FACE
N
S
N
S
S
N
D
0
VOQ
0.19
S
N
N
S
D
0
VOQ
0.5
GND
0.10
-
0
0.1
0.2
0.3
0.4
-0.06
-0.04
0
0.04
0.06
0.08
-0.10
-0.08
RELATIVE DISTANCE (TOTAL EFFECTIVE AIR GAP)
RELATIVE DISTANCE
Dwg. GH-047
Dwg. GH-049
VCC
VCC
+
+
EFFECTIVE
AIR GAP
0.19
EFFECTIVE AIR GAP = 0.050
EFFECTIVE AIR GAP = 0.075
N
S
N
S
D
0.21
D
0
VOQ
EFFECTIVE AIR GAP = 0.095
0
VOQ
0.25
GND
-
-0.4
-0.2
0
0.2
0.4
0
0.05
0.10
0.15
0.20
RELATIVE DISTANCE
RELATIVE DISTANCE
Dwg. GH-048
Dwg. GH-050
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9
3517 AND 3518
RATIOMETRIC,
LINEAR HALL-EFFECT SENSORS
FOR HIGH-TEMP. OPERATION
PACKAGE DESIGNATOR ‘UA’
Dimensions in Inches
Dimensions in Millimeters
(controlling dimensions)
(for reference only)
0.164
0.159
4.17
4.04
0.062
0.058
1.57
1.47
45°
45°
0.122
0.117
3.10
2.97
45°
45°
0.031
0.79
0.085
MAX
2.16
MAX
1
2
3
1
2
3
16.26
15.24
0.44
0.35
0.640
0.600
0.0173
0.0138
0.48
0.36
0.0189
0.0142
SEE NOTE
SEE NOTE
1.27
BSC
0.050
BSC
Dwg. MH-014E mm
Dwg. MH-014E in
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 devices per bag).
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
10
3517 AND 3518
RATIOMETRIC,
LINEAR HALL-EFFECT SENSORS
FOR HIGH-TEMP. OPERATION
Surface-Mount Lead Form (add ‘-TL’ to part number)
Dimensions in Inches
Dimensions in Millimeters
(controlling dimensions)
(for reference only)
0.095
0.005
2.41
0.13
0.002
MAX
0.051
MAX
0°–8°
0°–8°
0.004
0.10
0.020
MIN
FLAT
0.51
MIN
FLAT
MAX
MAX
Dwg. MH-015 in
Dwg. MH-015 mm
NOTE:
Supplied in bulk pack (500 devices per bag).
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 responsibil-
ity for its use; nor for any infringements of patents or other rights of
third parties that may result from its use.
www.allegromicro.com
11
3517 AND 3518
RATIOMETRIC,
LINEAR HALL-EFFECT SENSORS
FOR HIGH-TEMP. OPERATION
HALL-EFFECT SENSORS
Partial Part Avail. Oper.
NumberTemp.
Characteristics at T = +25°C
A
B
max
B
min
B
typ
Features
Notes
OP
RP
hys
RATIOMETRIC, LINEAR HALL-EFFECT SENSORS
3503
3507
3508
3515
3516
3517
3518
S
E/L
S
E/L
E/L
L/S
L/S
typ. 1.3 mV/G
typ. 2.5 mV/G
typ. 2.5 mV/G
typ. 5.0 mV/G
typ. 2.5 mV/G
typ. 5.0 mV/G
typ. 2.5 mV/G
chopper stabilized
chopper stabilized
chopper stabilized
chopper stabilized
GEARTOOTH/RING MAGNET (DUAL ELEMENT) HALL-EFFECT SENSORS in order of B
OP
3060
3422
3059
3056
3058
3421
K/S
E/L
K/S
E/L
E/L
E/L
+35
+75
+100
+150
+250
+280
-35
-75
-100
-150
-250
-280
30
46
130
50
200
335
ac coupled
direction detection
ac coupled
zero-speed
zero-speed
direction detection
SPECIAL-PURPOSE HALL-EFFECT SENSORS
3054
3209
3210
3421
3422
3425
K/S
E
+300
60
+5.0
5.0
50
7.7
7.7
335
46
unipolar switch, multiplexed
400 µW, chopper stabilized
25 µW, chopper stabilized
direction detection
4
1
E
60
5.0
E/L
E/L
L
+280
+85
+24
-280
-85
-24
direction detection
19
dual, chopper stabilized
Operating Temperature Ranges:
S = -20°C to +85°C, E = -40°C to +85°C, J = -40°C to +115°C, K = -40°C to +125°C, L = -40°C to +150°C
Notes 1. Protected.
4. Multiplexed two-wire sensor; after proper address, power/signal bus current indicates magnetic field condition.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
12
相关型号：
A3518SUA-LC
Hall Effect Sensor, 20mT Max, 0.2-4.70V, BICMOS, Plastic/epoxy, Rectangular, 3 Pin, Through Hole Mount, ULTRA MINI, SIP-3
ALLEGRO
A3518SUA-TL
Hall Effect Sensor, 20mT Max, 0.2-4.70V, BICMOS, Plastic/epoxy, Rectangular, 3 Pin, Through Hole Mount, ULTRA MINI, SIP-3
ALLEGRO
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