HMC1052 概述
1, 2 and 3 Axis Magnetic Sensors 1 , 2和3轴磁传感器 磁场传感器
HMC1052 规格参数
是否Rohs认证: | 符合 | 生命周期: | Obsolete |
Reach Compliance Code: | unknown | 风险等级: | 5.76 |
其他特性: | RESOLUTION 120 MICRO GAUSS | 主体宽度: | 3 mm |
主体高度: | 1.1 mm | 主体长度或直径: | 3 mm |
外壳: | PLASTIC | JESD-609代码: | e3 |
线性度 (%): | 1.8 % | 最大磁场范围: | -0.6 mT |
最小磁场范围: | -0.6 mT | 安装特点: | SURFACE MOUNT |
最大工作电流: | 10 mA | 最高工作温度: | 125 °C |
最低工作温度: | -40 °C | 输出类型: | ANALOG VOLTAGE |
封装形状/形式: | SQUARE | 电阻: | 1000 Ω |
灵敏度(mV / G): | 1 mV/G | 传感器/换能器类型: | MAGNETIC FIELD SENSOR,MAGNETORESISTIVE |
最大供电电压: | 20 V | 最小供电电压: | 1.8 V |
表面贴装: | YES | 端子面层: | Matte Tin (Sn) |
端接类型: | SOLDER | Base Number Matches: | 1 |
HMC1052 数据手册
通过下载HMC1052数据手册来全面了解它。这个PDF文档包含了所有必要的细节,如产品概述、功能特性、引脚定义、引脚排列图等信息。
PDF下载1, 2 and 3 Axis Magnetic Sensors
HMC1051/HMC1052/HMC1053
The Honeywell HMC1051, HMC1052 and HMC1053 are
magnetoresistive sensors designed for low field magnetic sensing.
Various packaging options have been created from the basic
HMC1052 sensor chip to create 1, 2 and 3-axis magneto-resistive
sensors for cost effective and small size solutions. The advantage
of the HMC105X family of sensors is in the near-perfectly
orthogonal dual sensor on a single chip with shared set/reset and
offset coils/straps included.
The
HMC105X
family
utilizes
Honeywell’s
Anisotropic
Magnetoresistive (AMR) technology that provides advantages over
coil based magnetic sensors. They are extremely sensitive, low
field, solid-state magnetic sensors designed to measure direction
and magnitude of Earth’s magnetic fields, from 120 micro-gauss to
6 gauss. Honeywell’s Magnetic Sensors are among the most
sensitive and reliable low-field sensors in the industry. Applications
for the HMC105X family of sensors include low cost Compassing,
Magnetometry, and Current Sensing.
Honeywell continues to maintain product excellence and performance by introducing innovative solid-state magnetic
sensor solutions. These are highly reliable, top performance products that are delivered when promised. Honeywell’s
magnetic sensor solutions provide real solutions you can count on.
FEATURES
BENEFITS
Miniature Surface-Mount Packages
4
4 Small Sizes for Compact Applications
Leaded and Leadless Packages
Low Voltage Operations (1.8V)
Low Cost
4
4
4
4
4
4
4
4 Compatible with High Speed SMT Assembly and Prototyping
4 Compatible for Battery Powered Applications
4 Designed for High Volume, Cost Effective OEM Designs
4 High Volume OEM Assembly
Tape & Reel Packaging Options
4-Element Wheatstone Bridge
Wide Magnetic Field Range (+/-6 Oe)
Patented Offset and Set/Reset Straps
4 Low Noise Passive Element Design
4 Sensor Can Be Used in Strong Magnetic Field Environments
4 Stray Magnetic Field Compensation
HMC1051/HMC1052/HMC1053
SPECIFICATIONS
Characteristics
Conditions*
Min
Typ
Max
Units
Bridge Elements
Supply
Vbridge referenced to GND
Bridge current = 10mA
Ambient
1.8
800
-40
-55
3.0
20
1500
125
150
85
Volts
ohms
°C
Resistance
1000
Operating Temperature
Storage Temperature
Humidity
Ambient, unbiased
°C
Tested at 85°C
%
Field Range
Full scale (FS) – total applied field
-6
+6
gauss
Linearity Error
Best fit straight line
± 1 gauss
0.1
0.5
1.8
%FS
± 3 gauss
± 6 gauss
Hysteresis Error
Repeatability Error
Bridge Offset
3 sweeps across ±3 gauss
3 sweeps across ±3 gauss
0.06
0.1
%FS
%FS
mV/V
Offset = (OUT+) – (OUT-)
Field = 0 gauss after Set pulse
-1.25
0.8
± 0.5
+1.25
1.2
Sensitivity
Set/Reset Current = 0.5A
@ 1kHz, Vbridge=5V
1.0
50
120
5
mV/V/gauss
nV/sqrt Hz
µgauss
Noise Density
Resolution
50Hz Bandwidth, Vbridge=5V
Magnetic signal (lower limit = DC)
Bandwidth
MHz
Disturbing Field
Sensitivity starts to degrade.
20
gauss
Use S/R pulse to restore sensitivity.
Sensitivity Tempco
TA= -40 to 125°C, Vbridge=5V
TA= -40 to 125°C, Ibridge=5mA
-3000
-2700
-600
-2400
ppm/°C
ppm/°C
Bridge Offset Tempco
TA= -40 to 125°C, No Set/Reset
TA= -40 to 125°C, With Set/Reset
± 500
± 10
Bridge Ohmic Tempco
Cross-Axis Effect
Max. Exposed
Field
Vbridge=5V, TA= -40 to 125°C
Cross field = 1 gauss, Happlied = ±1 gauss
No perming effect on zero reading
2100
95
2500
± 3
2900
10000
105
ppm/°C
%FS
gauss
Sensitivity Ratio of
X,Y Sensors
TA= -40 to 125°C
(HMC1052 Only)
100
%
X,Y sensor
Sensitive direction in X and Y sensors
(HMC1052)
0.01
degree
Orthogonality
Set/Reset Strap
Resistance
Measured from S/R+ to S/R-
0.1% duty cycle, or less, 2µsec current pulse
TA= -40 to 125°C
3
4.5
0.5
6
4
ohms
Amp
Current
0.4
Resistance Tempco
3300
3700
4100
ppm/°C
Offset Straps
Resistance
Offset
Measured from OFFSET+ to OFFSET-
DC Current
12
15
10
18
ohms
mA/gauss
Constant
Field applied in sensitive direction
TA= -40 to 125°C
Resistance Tempco
3500
3900
4300
ppm/°C
* Tested at 25°C except stated otherwise.
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HMC1051/HMC1052/HMC1053
PIN CONFIGURATIONS
(Arrow indicates direction of applied field that generates a positive output voltage after a SET pulse.)
HMC1051Z
Vcc
(3)
HMC1051Z Pinout
HMC1051
HONEYWELL
HMC1051Z
BRIDGE A
BRIDGE B
1
2 3 4 5 6 7 8
Vo+(A)
(2)
Vo-(A)
(8)
GND1(B) GND2(B)
GND Plane
(4)
(1)
(5)
Set/Reset Strap
S/R+
(6)
S/R-
(7)
HMC1051ZL
HMC1051ZL Pinout
8
7
6
5
4
3
2
1
VB VO+ OFF+ GND VO- S/R- S/R+ OFF-
HMC1052
HMC1052 Pinout
Vcc
(5)
10
9
8
7
6
HMC1052
B
BRIDGE A
BRIDGE B
HMC
1052
A
OUT- GND2 GND1 OUT+ OUT-
(10) (9) (3) (4) (7)
GND
(1)
OUT+
(2)
1
2
3
4
5
Set/Reset Strap
S/R+
(6)
S/R-
(8)
www.honeywell.com
3
HMC1051/HMC1052/HMC1053
HMC1052L
HMC1052L Pinout
BOTTOM VIEW
OUT-
NC
9
(B) S/R- NC
10 11 12
GND1
(A)
S/R+
8
7
6
5
B
13
14
15
16
OUT-
(A)
GND2
(B)
GND1
(B)
A
OFF-
NC
OUT+
(B)
4
3
2
1
OUT+
(A)
GND2
(A)
VB
OFF+
HMC1053
HMC1053 Pinout
PACKAGE OUTLINES
PACKAGE DRAWING HMC1051Z (8-PIN SIP)
Symbol
Millimeters
Inches x 10E-3
Min
Max
1.728
0.249
0.483
11.253
3.988
Min
54
4
14
387
150
Max
68
10
19
443
157
A
A1
B
D
E
1.371
0.101
0.355
9.829
3.810
e
1.270 ref
50 ref
H
h
6.850
0.381
7.300
0.762
270
15
287
30
4
www.honeywell.com
HMC1051/HMC1052/HMC1053
PACKAGE DRAWING HMC1051ZL (8-PIN IN-LINE LCC)
PACKAGE DRAWING HMC1052 (10-PIN MSOP)
Symbol
Millimeters
Inches x 10E-3
Min
Max
Min
Max
A
A1
b
D
E1
e
-
1.10
0.15
0.30
3.10
3.10
-
43
5.9
11.8
122
122
0.05
0.15
2.90
2.90
0.50 BSC
4.75
2.0
5.9
114
114
19.7 BSC
187
E
5.05
199
L1
0.95 BSC
37.4
PACKAGE DRAWING HMC1052L (16-PIN LCC)
Symbol
Millimeters
min
0.80
0
max
1.00
0.05
A
A1
A3
b
D
D2
E
E2
e
0.20 REF
3.00 BSC
3.00 BSC
0.50 BSC
0.18
1.55
1.55
0.30
0.30
1.80
1.80
0.50
L
N
16
4
4
ND
NE
r
B(min)/2
aaa
bbb
ccc
0.15
0.10
0.10
w
5
HMC1051/HMC1052/HMC1053
PACKAGE DRAWING HMC1053 (16-PIN LCC)
STENCIL DESIGN AND SOLDER PASTE
A 4 mil stencil and 100% paste coverage is recommended for the electrical contact pads.
REFLOW AND REWORK
The HMC1051ZL and HMC1053 parts should reference application note AN-216. The other part types have no special
profile required and compatible with lead eutectic and lead-free solder paste reflow profiles up to 220°C. Honeywell
recommends the adherence to solder paste manufacturer’s guidelines. The HMC105X parts may be reworked with
soldering irons, but extreme care must be taken not to overheat the copper pads from the part’s fiberglass substrate. Irons
with a tip temperature no greater than 315°C should be used. Excessive rework risks the copper pads pulling away into
the molten solder.
DEVICE OPERATION
The Honeywell HMC105X family of magnetoresistive sensors are Wheatstone bridge devices to measure magnetic fields.
With power supply applied to a bridge, the sensor converts any incident magnetic field in the sensitive axis direction to a
differential voltage output. In addition to the bridge circuit, the sensor has two on-chip magnetically coupled straps; the
offset strap and the set/reset strap. These straps are Honeywell patented features for incident field adjustment and
magnetic domain alignment; and eliminate the need for external coils positioned around the sensors.
The magnetoresistive sensors are made of a nickel-iron (Permalloy) thin-film deposited on a silicon wafer and patterned
as a resistive strip element. In the presence of a magnetic field, a change in the bridge resistive elements causes a
corresponding change in voltage across the bridge outputs.
These resistive elements are aligned together to have a common sensitive axis (indicated by arrows on the pinouts) that
will provide positive voltage change with magnetic fields increasing in the sensitive direction. Because the output only is in
proportion to the one-dimensional axis (the principle of anisotropy) and its magnitude, additional sensor bridges placed at
orthogonal directions permit accurate measurement of arbitrary field direction. The combination of sensor bridges in two
and three orthogonal axis permit applications such as compassing and magnetometry.
The offset strap allows for several modes of operation when a direct current is driven through it. These modes are: 1)
Subtraction (bucking) of an unwanted external magnetic field, 2) null-ing of the bridge offset voltage, 3) Closed loop field
cancellation, and 4) Auto-calibration of bridge gain.
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www.honeywell.com
HMC1051/HMC1052/HMC1053
The set/reset strap can be pulsed with high currents for the following benefits: 1) Enable the sensor to perform high
sensitivity measurements, 2) Flip the polarity of the bridge output voltage, and 3) Periodically used to improve linearity,
lower cross-axis effects, and temperature effects.
NOISE CHARACTERISTICS
The noise density for the HMR105X series is around 50nV/sqrt Hz at the 1 Hz corner, and quickly drops below 10nV/sqrt
Hz at 5Hz and begins to fit the Johnson Noise value at just below 5nV/sqrt Hz beyond 50Hz. The 10Hz noise voltage
averages around 1.4 micro-volts with a 0.8 micro-volts standard deviation.
CROSS-AXIS EFFECT
Cross-Axis effect for the HMR105X series is typically specified at ±3% of full scale to 1 gauss. See application note
AN215 regarding this effect and methods for nulling.
OFFSET STRAP
The offset strap is a spiral of metalization that couples in the sensor element’s sensitive axis. In two-axis designs, the
strap is common to both bridges and must be multiplexed if each bridge requires a different strap current. In three-axis
designs, the A and B bridges are together with the C bridge sharing a common node for series driving all three bridges’
offset straps. Each offset strap measures nominally 15 ohms, and requires 10mA for each gauss of induced field. The
straps will easily handle currents to buck or boost fields through the ±6 gauss linear measurement range, but designers
should note the extreme thermal heating on the die when doing so.
With most applications, the offset strap is not utilized and can be ignored. Designers can leave one or both strap
connections (Off- and Off+) open circuited, or ground one connection node. Do not tie both strap connections together to
avoid shorted turn magnetic circuits.
SET/RESET STRAP
The set/reset strap is another spiral of metalization that couples to the sensor elements easy axis (perpendicular to the
sensitive axis on the sensor die). Like the offset strap, the set/reset strap runs through a pair of bridge elements to keep
the overall die size compact. Each set/reset strap has a nominal resistance of 3 to 6 ohms with a minimum required peak
current of 400mA for reset or set pulses. With rare exception, the set/reset strap must be used to periodically condition the
magnetic domains of the magneto-resistive elements for best and reliable performance.
A set pulse is defined as a positive pulse current entering the S/R+ strap connection. The successful result would be the
magnetic domains aligned in a forward easy-axis direction so that the sensor bridge’s polarity is a positive slope with
positive fields on the sensitive axis result in positive voltages across the bridge output connections.
A reset pulse is defined as a negative pulse current entering the S/R+ strap connection. The successful result would be
the magnetic domains aligned in a reverse easy-axis direction so that sensor bridge’s polarity is a negative slope with
positive fields on the sensitive axis result in negative voltages across the bridge output connections.
Typically a reset pulse is sent first, followed by a set pulse a
few milliseconds later. By shoving the magnetic domains in
completely opposite directions, any prior magnetic
disturbances are likely to be completely erased by the duet
Iset
of pulses. For simpler circuits with less critical requirements
for noise and accuracy, a single polarity pulse circuit may
be employed (all sets or all resets). With these uni-polar
5 volts
pulses, several pulses together become close in
performance to a set/reset pulse circuit. Figure 1 shows a
quick and dirty manual pulse circuit for uni-polar application
of pulses to the set/reset strap.
Figure 1
Set Pulse Circuit
www.honeywell.com
7
HMC1051/HMC1052/HMC1053
APPLICATION NOTES
Low Cost 2-Axis Compass
Very high precision measurements can be made using the HMC105X family of sensors when interfaced with low noise
amplifiers and 12 to 16-bit Analog-to-Digital (A/D) converters. For lower resolution (3° accuracy or more) or low cost
compass applications, 8 or 10-bit A/D converters may be used with general purpose operational amplifiers. Figure 2
shows a typical 2-axis compassing application using readily available off-the-shelf components.
The basic principle of two-axis compassing is to orient the two sensor bridge elements horizontal to the ground
(perpendicular to the gravitational field) and to measure the resulting X and Y analog output voltages. With the amplified
sensor bridge voltages near-simultaneously converted (measured) to their digital equivalents, the arc-tangent Y/X can be
computed to derive the heading information relative to the X-axis sensitive direction. See the application notes on
compassing at Honeywell Magnetic Sensors website (www.magneticsensors.com) for basic principles and detailed
application information.
U1
Vcc
1nf
500k
2.5 to 3.6v
5.00k
5.00k
LMV358
U3
500k
enable
data_out
clk_in
Vref/2
1nf
1
0
U2
MAX1118
HMC1052
500k
Vref
5.00k
5.00k
LMV358
500k
Vref/2
Figure 2
Two-Axis Compass
.1uf
U4
set/reset
offset
set/reset
(2) IRF7509
U5
_set/reset
Set/Reset Circuit Notes
The above set/reset circuit in Figure 1using the IRF7507
dual complementary MOSFETs is shown in detail by Figure
2 in its H-bridge driven configuration. This configuration is
used primarily in battery operated applications were the
500mA nominal set/reset pulsed currents can be best
obtained under low voltage conditions.
Vsr
200Ω
Vcc
1µf
+
-
IRF7509(P)
G
S
.1µf
D
D
set/reset
The 200-ohm resistor trickle charges the 1uf supply
reservoir capacitor to the Vcc level, and isolates the battery
from the high current action of the capacitors and MOSFET
switches. Under conventional logic states one totem pole
switch holds one node of the 0.1uf capacitor low, while the
other switch charges Vcc into the capacitors opposite node.
At the first logic change, the capacitor exhibits almost a
twice Vcc flip of polarity, giving the series set/reset strap
load plenty of pulse current. A restoring logic state flip uses
the 0.1uf capacitors stored energy to create a second nearly
equal but opposite polarity current pulse through the
set/reset strap.
G
Vsr
Rset/reset
IRF7509(P)
G
S
S
IRF7509(N)
4Ω
D
D
_set/reset
G
Figure 3
H-Bridge Driver
S
IRF7509(N)
8
www.honeywell.com
HMC1051/HMC1052/HMC1053
For operation at normal 3.3 or 5-volt logic levels, a single complementary MOSFET pair can be used in a single ended
circuit shown in Figure 4. Other complementary MOSFET pairs can be used with the caution that the chosen devices
should have less than 0.5 ohms ON resistance and be able to handle the needed supply voltages and set/reset currents.
Note that even a 1Hz rate of set/reset function draws an
average current of less than 2 microamperes.
Vsr
200Ω
Vcc
1µf
+
Magnetic Field Detection
IRF7509(P)
S
-
For simple magnetic field sensing applications such
Magnetic Anomaly Detectors (MADs) and Magnetometers,
a similar circuit to the compass application can be
G
.1µf
D
set/reset
D
implemented using one, two, or three magnetic sensors. In
G
the example circuit in Figure 5, a HMC1051Z sensor bridge
is used with a low voltage capable dual op-amp to detect
sufficient intensity of a magnetic field in a single direction.
Uses of the circuit include ferrous object detection such as
vehicle detection, a “sniffer” for currents in nearby
conductors, and magnetic proximity switching. By using two
or three sensor circuits with HMC1051, HMC1052, or
HMC1053 parts, a more omni-directional sensing pattern
Rset/reset
S
4Ω
IRF7509(N)
Figure 4
Single-Ended Driver
can be implemented. There is nothing special in choosing the resistors for the differential op-amp gain stages other than
having like values (e.g. the two 5kΩ and the 500kΩ resistors) matched at 1% tolerance or better to reject common-mode
interference signals (EMI, RFI). The ratio of the 500kΩ/5kΩ resistors sets the stage gain and can be optimized for a
specific purpose. Typical gain ratios for compass and magnetometer circuits using the HMC105X family, range from 50 to
500. The choice of the 5kΩ value sets impedance loading seen by the sensor bridge network and should be about 4 kilo-
ohms or higher for best voltage transfer or matching. Note that Figure 5 also shows an alternative set/reset strap driver
circuit using two darlington complentary paired BJTs as electronic switches.
U1
Vcc
Vcc
5.0v
.1µf
500k
10kΩ pot
Threshold Set
5.00k
5.00k
-
TLC072
+
U2
output
LED
500k
-
TLC072
Vcc/2
+
HMC1051
10kΩ
Vcc
RLED
* Low ESR Tantalum
200Ω
1µf*
-
+
10kΩ
0.1µf
0.1µf
FMMT717
FMMT617
.1uf
set/reset
offset
set/reset
S
R
Figure 5
Magnetic Field Detector
10kΩ
Alternating or Direct Current Sensing
The HMC105X family sensors can be utilized in a novel way for moderate to high current sensing applications using a
nearby external conductor providing the sensed magnetic field to the bridge. Figure 6 shows a HMC1051Z used as a
current sensor with thermistor element performing a temperature compensation function for greater accuracy over a wide
range of operational temperatures. Selection of the temperature compensation (tempco) resistors used depends on the
thermistor chosen and is dependant on the thermistor’s %/°C shift of resistance. For best op-amp compatibility, the
thermistor resistance should be above about 1000 ohms. The use of a 9-volt alkaline battery supply is not critical to this
application, but permits fairly common operational amplifiers such as the 4558 types to be used. Note that the circuit
must be calibrated based on the final displacement of the sensed conductor to the measuring bridge. Typically, an
optimally oriented measurement conductor can be placed about one centimeter away from the bridge and have
www.honeywell.com
9
HMC1051/HMC1052/HMC1053
reasonable capability of measuring from tens of milliamperes to beyond 20 amperes of alternating or direct currents. See
application note AN-209 for the basic principles of current sensing using AMR bridges.
tempco
network
R
R
a
b
standoff distance
Vcc = 9Vdc
U1
R
th
.1µf
500k
-
RC4458
5.00k
5.00k
-
RC4558
+
output
+
U2
500k
Vcc/2 ~ +4.5Vdc
Figure 6
HMC1051
Current Sensor
Vcc =9Vdc
* Low ESR Tantalum
200Ω
1µf*
-
+
Iac
Idc
.1uf
set/reset
set/reset
Si1553DL
offset
U3
Conductor to be
Current Measured
Three Axis Compassing with Tilt Compensation
For full three-axis compassing, the circuit depicted in Figure 7 shows both a HMC1051 and a HMC1052 used for sensing
the magnetic field in three axes. Alternatively a single HMC1053 could be used for a single sensor package design. A
two-axis accelerometer with digital (PWM) outputs is also shown to provide pitch and roll (tilt) sensing, to correct the
three-axis magnetic sensors outputs into to the tilt-compensated two-axis heading. The accelerometer can be substituted
with a fluidic 2-axis tilt sensor if desired. For lower voltage operation with Lithium battery supplies (2.5 to 3.6Vdc), the
Set/Reset circuit should be upgraded from a single IRF7507 to the dual IRF7507 implementation (per Figure 2) to permit
a minimum 1-ampere pulse (500mA per set/reset strap resistance) to both the HMC1052 and HMC1051 sensors.
10
www.honeywell.com
HMC1051/HMC1052/HMC1053
U1
Vcc
1nf
500k
3.3 to 5.0v
Vcc
5.00k
AN0
AN1
AN2
AN3
LMV324
5.00k
U3
500k
Vcc/2
1nf
Vcc/2
HMC1052
set/reset
DO0
500k
5.00k
5.00k
U6
LMV324
500k
µC
Vcc/2
with
.1uf
U4
set/reset
Multiplexed
A/D Conv.
IRF7509
Vcc
offset
U5
set/reset
Two-axis
accelerometer
Vcc
.1µf
500k
U2
5.00k
5.00k
-
LMV324
xout
yout
DI0
DI1
+
500k
Vcc/2
HMC1051
Figure 7
Three Axis Compass
Duty Cycling for Lower Energy Consumption
For battery powered and other applications needing limited energy consumption, the sensor bridge and support
electronics can be switched “off” between magnetic field measurements. The HMC105X family of magnetic sensors are
very low capacitance (Bandwidth > 5MHz) sensor bridges and can stabilize quickly, typically before the support
electronics can. Other energy saving ideas would be to minimize the quantity of set/reset pulses which saves energy over
the battery life. Figure 8 shows a simple supply switching circuit that can be microprocessor controlled to duty cycle
(toggle) the electronics in moderate current (<25mA) applications.
Vcc
MMBT2907ALT1
To Sensor Circuits
Vcc
0.01µf
+
-
Gnd
10µf
µC
* Used when Vcc = 5.0 volts, jumper
when using Vcc = 3.3 volts or less.
*MMBD7001LT1
Off
On
toggle
10kΩ
Figure 8
Duty Cycling
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11
HMC1051/HMC1052/HMC1053
ORDERING INFORMATION
Part Number
HMC1051Z
HMC1051ZL
Package Style
One Axis Magnetic Sensor – SIP8
One Axis Magnetic Sensor – 8-PIN IN-LINE LCC
HMC1052
HMC1052 T/R
Two Axis Magnetic Sensors – MSOP10
2,500 units/reel
HMC1052L
HMC1052L
Two Axis Magnetic Sensors – 16-PIN LCC
3,000 units/reel
HMC1053
Three Axis Magnetic Sensors – 16-PIN LCC
FIND OUT MORE
For more information on Honeywell’s Magnetic Sensors visit us online at www.magneticsensors.com or contact us at
800-323-8295 (763-954-2474 internationally).
The application circuits herein constitute typical usage and interface of Honeywell product. Honeywell does not warranty or assume liability of customer-
designed circuits derived from this description or depiction.
Honeywell reserves the right to make changes to improve reliability, function or design. Honeywell does not assume any liability arising out of the
application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others.
U.S. Patents 4,441,072, 4,533,872, 4,569,742, 4,681,812, 4,847,584 and 6,529,114 apply to the technology described
Honeywell
12001 Highway 55
Plymouth, MN 55441
Tel: 800-323-8295
www.honeywell.com/magneticsensors
Form #900308 Rev B
March 2006
©2006 Honeywell International Inc.
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