HAL114, HAL115
Hall Effect Sensor Family
Edition Dec. 20, 1999
6251-456-2DS
MICRONAS
MICRONAS
HAL11x
2 Micronas
Contents
Page Section Title
3 1. Introduction
3 1.1. Features
3 1.2. Family Overview
3 1.3. Marking Code
4 1.4. Operating Junction Temperature Range
4 1.5. Hall Sensor Package Codes
4 1.6. Solderability
4 2. Functional Description
5 3. Specifications
5 3.1. Outline Dimensions
5 3.2. Dimensions of Sensitive Area
5 3.3. Positions of Sensitive Areas
6 3.4. Absolute Maximum Ratings
6 3.5. Recommended Operating Conditions
7 3.6. Electrical Characteristics
8 3.7. Magnetic Characteristics
10 4. Type Descriptions
10 4.1. HAL114
12 4.2. HAL115
14 5. Application Notes
14 5.1. Application Circuit
14 5.2. Ambient Temperature
14 5.3. Extended Operating Conditions
14 5.4. Start-up Behavior
16 6. Data Sheet History
HAL11x
3Micronas
Hall Effect Sensor Family
in CMOS technology
Release Notes: Revision bars indicate significant
changes to the previous edition.
1. Introduction
The HAL 11x family consists of different Hall switches
produced in CMOS technology.
All sensors include a temperature-compensated Hall
plate, a comparator, and an open-drain output transistor.
The comparator compares the actual magnetic flux
through the Hall plate (Hall voltage) with the fixed refer-
ence values (switching points). Accordingly, the output
transistor is switched on or off. The sensors of this family
differ in the switching behavior.
The sensors are designed for industrial and automotive
applications and operate with supply voltages from
4.5 V to 24 V in the ambient temperature range from
–40 °C up to 125 °C.
All sensors are available in an SMD-package (SOT-89B)
and in a leaded version (TO-92UA).
1.1. Features
operates from 4.5 V to 24 V supply voltage
overvoltage protection
reverse-voltage protection at VDD-pin
short-circuit protected open-drain output by thermal
shut down
operates with static magnetic fields and dynamic mag-
netic fields up to 20 kHz
stable switching points over a wide supply voltage
range
the decrease of magnetic flux density caused by rising
temperature in the sensor system is compensated by
a built-in negative temperature coefficient of the mag-
netic characteristics
1.2. Family Overview
The types differ according to the mode of switching.
Type Switching Behavior see Page
HAL114 unipolar 10
HAL115 bipolar 12
Bipolar Switching Sensors:
The output turns low with the magnetic south pole on the
branded side of the package and turns high with the
magnetic north pole on the branded side. The output
state is not defined for all sensors if the magnetic field is
removed again. Some sensors will change the output
state and some sensors will not.
Unipolar Switching Sensors:
The output turns low with the magnetic south pole on the
branded side of the package and turns high if the mag-
netic field is removed. The sensor does not respond to
the magnetic north pole on the branded side.
1.3. Marking Code
All Hall sensors have a marking on the package surface
(branded side). This marking includes the name of the
sensor and the temperature range.
Type Temperature Range
K E C
HAL114 114K 114E 114C
HAL115 115K 115E 115C
HAL11x
4 Micronas
1.4. Operating Junction Temperature Range
The Hall sensors from Micronas are specified to the chip
temperature (junction temperature TJ).
K: TJ = 40 °C to +140 °C
E: TJ = 40 °C to +100 °C
C: TJ = 0 °C to +100 °C
The relationship between ambient temperature (TA) and
junction temperature is explained in section 5.2. on page
14.
1.5. Hall Sensor Package Codes
Type: 11x
HALXXXPA-T Temperature Range: K, E, or C
Package: SF for SOT-89B
UA for TO-92UA
(SO for SOT-89A)
Type: 114
Package: TO-92UA
Temperature Range: TJ = 40 °C to +100 °C
Example: HAL114UA-E
Hall sensors are available in a wide variety of packaging
versions and quantities. For more detailed information,
please refer to the brochure: Ordering Codes for Hall
Sensors.
1.6. Solderability
all packages: according to IEC68-2-58
During soldering reflow processing and manual
reworking, a component body temperature of 260 °C
should not be exceeded.
Components stored in the original packaging should
provide a shelf life of at least 12 months, starting from the
date code printed on the labels, even in environments as
extreme as 40 °C and 90% relative humidity.
OUT
GND
3
2
1VDD
Fig. 1–1: Pin configuration
2. Functional Description
The HAL11x sensors are monolithic integrated circuits
which switch in response to magnetic fields. If a
magnetic field with flux lines perpendicular to the
sensitive area is applied to the sensor, the biased Hall
plate forces a Hall voltage proportional to this field. The
Hall voltage is compared with the actual threshold level
in the comparator. The temperature-dependent bias
increases the supply voltage of the Hall plates and
adjusts the switching points to the decreasing induction
of magnets at higher temperatures. If the magnetic field
exceeds the threshold levels, the open drain output
switches to the appropriate state. The built-in hysteresis
eliminates oscillation and provides switching behavior of
output without bouncing.
Shunt protection devices clamp voltage peaks at the
Output-pin and VDD-pin together with external series
resistors. Reverse current is limited at the VDD-pin by an
internal series resistor up to 15 V. No external reverse
protection diode is needed at the VDD-pin for reverse
voltages ranging from 0 V to 15 V.
Temperature
Dependent
Bias Hysteresis
Control
Comparator Output
VDD
1
OUT
3
Hall Plate
G
ND
2
Fig. 2–1: HAL11x block diagram
HAL11x
Short Circuit &
Overvoltage
Protection
Reverse
Voltage &
Overvoltage
Protection
HAL11x
5Micronas
3. Specifications
3.1. Outline Dimensions
Fig. 31:
Plastic Small Outline Transistor Package
(SOT-89A)
Weight approximately 0.04 g
Dimensions in mm
min.
0.25
4.55±0.1
2.6±0.1
0.40.4
1.7
0.4
1.5
3.0
0.06±0.04
branded side
SPGS7001-7-A3/2E
sensitive area
top view
y
123
2
4±0.2
1.53±0.05
0.125
0.7
x1 x2
Note: The SOT-89A package will be discontinued in
2000 and be replaced by the SOT-89B package.
Fig. 32:
Plastic Small Outline Transistor Package
(SOT-89B)
Weight approximately 0.035 g
Dimensions in mm
min.
0.25
2.55±0.1
0.40.4
0.4
1.5
3.0
0.06±0.04
branded side
SPGS0022-3-A3/2E
sensitive area
top view
y
123
4±0.2
1.15±0.05
0.125
0.3
4.55±0.1
1.7
2
x1 x2
0.75±0.2
Fig. 33:
Plastic Transistor Single Outline Package
(TO-92UA)
Weight approximately 0.12 g
Dimensions in mm
sensitive area
0.55
branded side
0.36
0.8
0.3
45°
y
14.0
min.
1.271.27
(2.54)
123
0.42
1.5±0.05 4.06±0.1
3.05±0.1
0.48
SPGS7002-7-A/2E
3.1±0.2
x2x1
Note: For all package diagrams, a mechanical tolerance
of ±50 µm applies to all dimensions where no tolerance
is explicitly given.
3.2. Dimensions of Sensitive Area
0.4 mm x 0.2 mm
3.3. Positions of Sensitive Areas
SOT-89A SOT-89B TO-92UA
|x2 x1| / 2 < 0.2 mm
y = 0.98 mm
± 0.2 mm y = 0.95 mm
± 0.2 mm y = 1.0 mm
± 0.2 mm
HAL11x
6 Micronas
3.4. Absolute Maximum Ratings
Symbol Parameter Pin No. Min. Max. Unit
VDD Supply Voltage 115 281) V
VPTest Voltage for Supply 1242) V
IDD Reverse Supply Current 1501) mA
IDDZ, IOZ Current through Protection Devices 1 or 3 2003) 2003) mA
VOOutput Voltage 30.3 281) V
IOContinuous Output On Current 3301) mA
IOmax Peak Output On Current 32503) mA
TSStorage Temperature Range 65 150 °C
TJJunction Temperature Range 40 150 °C
1) as long as TJmax is not exceeded
2) with a 220 series resistor at pin 1
3) t<2 ms
Stresses beyond those listed in the Absolute Maximum Ratings may cause permanent damage to the device. This
is a stress rating only . Functional operation of the device at these or any other conditions beyond those indicated in the
Recommended Operating Conditions/Characteristics of this specification is not implied. Exposure to absolute maxi-
mum ratings conditions for extended periods may affect device reliability.
3.5. Recommended Operating Conditions
Symbol Parameter Pin No. Min. Max. Unit
VDD Supply Voltage 1 4.5 24 V
IOContinuous Output On Current 3 0 20 mA
VOOutput Voltage
(output switched off) 3 0 24 V
RVSeries Resistor1) 1 270
1) see Fig. 51 on page 14
HAL11x
7Micronas
3.6. Electrical Characteristics at TJ = 40 °C to +140 °C , VDD = 4.5 V to 24 V , as not otherwise specified in Conditions
Typical Characteristics for TJ = 25 °C and VDD = 12 V
Symbol Parameter Pin No. Min. Typ. Max. Unit Conditions
IDD Supply Current 1 6 8.2 11 mA TJ= 25 °C
IDD Supply Current over
Temperature Range 1 3.9 8.2 12 mA
VOL Output Voltage over
Temperature Range 3120 400 mV IOL = 12.5 mA
VOL Output Voltage over
Temperature Range 3190 500 mV IOL = 20 mA
IOH Output Leakage Current 30.06 1 µAB < Boff,
TJ = 25 °C, VOH = 0 to 24 V
IOH Output Leakage Current over
Temperature Range 3 10 µAB < Boff,
VOH = 0 to 24V
ten(O) Enable Time of Output after
Setting of VDD 16 10 µs VDD = 12 V
B > BON + 2 mT or
B < BOFF 2 mT
trOutput Rise T ime 30.08 0.4 µs VDD = 12 V, RL = 820 Ohm,
CL = 20 pF
tfOutput Fall T ime 30.06 0.4 µs VDD = 12 V, RL = 820 Ohm,
CL = 20 pF
RthJSB
case
SOT-89A
SOT-89B
Thermal Resistance Junction
to Substrate Backside 150 200 K/W Fiberglass Substrate
30 mm x 10 mm x 1.5mm,
pad size see Fig. 34
RthJA
case
TO-92UA
Thermal Resistance Junction
to Soldering Point 150 200 K/W
Fig. 34: Recommended pad size SOT-89x
Dimensions in mm
5.0
2.0
2.0
1.0
HAL11x
8 Micronas
3.7. Magnetic Characteristics at TJ = 40 °C to +140 °C, VDD = 4.5 V to 24 V,
Typical Characteristics for VDD = 12 V
Magnetic flux density values of switching points.
Positive flux density values refer to the magnetic south pole at the branded side of the package.
Sensor Parameter On point BON Off point BOFF Hysteresis BHYS Unit
Switching type TJMin. Typ. Max. Min. Typ. Max. Min. Typ. Max.
HAL114 40 °C 7.5 21.5 36 4.3 17.4 33.2 2.8 4.1 5 mT
unipolar 25 °C 7 21.1 34 4 17.1 31.2 2.8 4 4.5 mT
140 °C 6.1 19.4 31.3 3.6 16.1 28.8 2.2 3.3 4 mT
HAL115 40 °C10.7 1.4 12.5 12.5 1.4 10.7 1.8 2.8 7 mT
bipolar 25 °C10.7 1.2 12.5 12.5 1.2 10.7 1.8 2.4 7 mT
140 °C10.7 0.9 12.5 12.5 0.9 10.7 1 1.8 7 mT
Note: For detailed descriptions of the individual types, see pages 10 and following.
The magnetic limits given above refer to parts in the original packaging. Mechanical stress on the hall sensitive areas
on the chip surface may generate an additional magnetic offset, which can slightly change the magnetic switching
points. This behavior is a physical phenomenon and not a malfunction of the sensor. Mechanical stress on the hall plates
can be caused, for example, by overmoulding the plastic package or by wide range temperature changes like soldering
or operating the parts at extreme temperatures.
Please use a sensor of the HAL5xx family if higher robustness against mechanical stress is required.
15
10
5
0
5
10
15
15 10 5 0 5 1015202530
V
mA
VDD
IDD
Fig. 35: Typical supply current
versus supply voltage
TA = 40 °C
TA = 25 °C
TA = 140 °C
HAL11x
0
2
4
6
8
10
12
0123456
V
mA
VDD
IDD
Fig. 36: Typical supply current
versus supply voltage
TA = 40 °C
TA = 25 °C
TA = 140 °C
HAL11x
HAL11x
9Micronas
0
2
4
6
8
10
12
50 0 50 100 150 °C
mA
TA
IDD
VDD = 24 V
VDD = 4.5 V
Fig. 37: Typical supply current
versus temperature
HAL11x
0
100
200
300
400
500
0 5 10 15 20 25 30 V
mV
VDD
VOL
IO = 12.5 mA
Fig. 38: Typical output low voltage
versus supply voltage
TA = 40 °C
TA = 25 °C
TA = 140 °C
HAL11x
0
100
200
300
400
500
50 0 50 100 150
mV
TA
VOL
IO = 12.5 mA
IO = 20 mA
°C
VDD = 12 V
Fig. 39: Typical output low voltage
versus temperature
HAL11x
50 0 50 100 150
µA
TA
IOH
°C
100
101
102
103
104
101
102
VOH = 24 V
VDD = 5 V
Fig. 310: Typical output leakage current
versus temperature
HAL11x
HAL114
10 Micronas
4. Type Description
4.1. HAL114
The HAL114 is a unipolar switching sensor (see
Fig. 41).
The output turns low with the magnetic south pole on the
branded side of the package and turns high if the mag-
netic field is removed. The sensor does not respond to
the magnetic north pole on the branded side.
For correct functioning in the application, the sensor re-
quires only the magnetic south pole on the branded side
of the package.
Magnetic Features:
switching type: unipolar
typical BON: 21.1 mT at room temperature
typical BOFF: 17.1 mT at room temperature
operates with static magnetic fields and dynamic mag-
netic fields up to 20 kHz
Applications
The HAL114 is the optimal sensor for applications with
one magnetic polarity such as:
solid state switches,
contactless solution to replace micro switches,
position and end-point detection, and
rotating speed measurement.
BHYS
Output Voltage
Fig. 41: Definition of magnetic switching points for
the HAL114
0B
OFF BON
VOL
VO
B
Magnetic Characteristics at TJ = 40 °C to +140 °C, VDD = 4.5 V to 24 V,
Typical Characteristics for VDD = 12 V
Magnetic flux density values of switching points.
Positive flux density values refer to the magnetic south pole at the branded side of the package.
Parameter On point BON Off point BOFF Hysteresis BHYS Unit
TJMin. Typ. Max. Min. Typ. Max. Min. Typ. Max.
40 °C 7.5 21.5 36 4.3 17.4 33.2 2.8 4.1 5 mT
25 °C 7 21.1 34 4 17.1 31.2 2.8 4 4.5 mT
100 °C 6.3 19.9 31.5 3.6 16.4 28.9 2.6 3.5 4 mT
140 °C 6.1 19.4 31.3 3.6 16.1 28.8 2.2 3.3 4 mT
The hysteresis is the difference between the switching points BHYS = BON BOFF
The magnetic limits given above refer to parts in the original packaging. Mechanical stress on the hall sensitive areas
on the chip surface may generate an additional magnetic offset, which can slightly change the magnetic switching
points. This behavior is a physical phenomenon and not a malfunction of the sensor. Mechanical stress on the hall plates
can be caused, for example, by overmoulding the plastic package or by wide range temperature changes like soldering
or operating the parts at extreme temperatures.
Please use a sensor of the HAL 5xx family if a robustness against mechanical stress is required.
HAL114
11Micronas
0
5
10
15
20
25
30
0 5 10 15 20 25 30
mT
VDD
V
BON
BOFF
Fig. 42: Typical magnetic switching
points versus supply voltage
TA = 40 °C
TA = 25 °C
TA = 140 °C
HAL114
0
5
10
15
20
25
30
3456
mT
VDD
V
BON
BOFF
Fig. 43: Typical magnetic switching
points versus supply voltage
TA = 40 °C
TA = 25 °C
TA = 140 °C
HAL114
0
5
10
15
20
25
30
50 0 50 100 150
BOFF
mT
TA
BON
BOFF
BON
VDD = 12 V
°C
Fig. 44: Typical magnetic switching
points versus temperature
HAL114
HAL115
12 Micronas
4.2. HAL115
The HAL115 is a bipolar switching sensor (see Fig. 45).
The output turns low with the magnetic south pole on the
branded side of the package and turns high with the
magnetic north pole on the branded side. The output
state is not defined for all sensors if the magnetic field is
removed again. Some sensors will change the output
state and some sensors will not.
For correct functioning in the application, the sensor re-
quires both magnetic polarities (north and south) on the
branded side of the package.
Magnetic Features:
switching type: bipolar
high sensitivity
typical BON: 1.2 mT at room temperature
typical BOFF: 1.2 mT at room temperature
operates with static magnetic fields and dynamic mag-
netic fields up to 20 kHz
Applications
The HAL 115 is the optimal sensor for all applications
with alternating magnetic signals at the sensor position
such as:
rotating speed measurement,
commutation of brushless DC-motors and cooling
fans.
Fig. 45:Definition of magnetic switching points for the
HAL115
BHYS
Output Voltage
0BOFF BON
VOL
VO
B
Magnetic Characteristics at TJ = 40 °C to +140 °C, VDD = 4.5 V to 24 V,
Typical Characteristics for VDD = 12 V
Magnetic flux density values of switching points.
Positive flux density values refer to the magnetic south pole at the branded side of the package.
Parameter On point BON Off point BOFF Hysteresis BHYS Unit
TJMin. Typ. Max. Min. Typ. Max. Min. Typ. Max.
40 °C10.7 1.4 12.5 12.5 1.4 10.7 1.8 2.8 7 mT
25 °C10.7 1.2 12.5 12.5 1.2 10.7 1.8 2.4 7 mT
100 °C10.7 1 12.5 12.5 1 10.7 1.5 2 7 mT
140 °C10.7 0.9 12.5 12.5 0.9 10.7 1 1.8 7 mT
The hysteresis is the difference between the switching points BHYS = BON BOFF
The magnetic limits given above refer to parts in the original packaging. Mechanical stress on the hall sensitive areas
on the chip surface may generate an additional magnetic offset, which can slightly change the magnetic switching
points. This behavior is a physical phenomenon and not a malfunction of the sensor. Mechanical stress on the hall plates
can be caused, for example, by overmoulding the plastic package or by wide range temperature changes like soldering
or operating the parts at extreme temperatures.
Please use a sensor of the HAL5xx family if higher robustness against mechanical stress is required.
HAL115
13Micronas
6
4
2
0
2
4
6
50 0 50 100 150
BOFF
mT
TA
BON,
BOFF
°C
BON
VDD = 12 V
HAL115
Fig. 46:Typical magnetic switching
points versus ambient temperature
HAL11x
14 Micronas
5. Application Notes
5.1. Application Circuit
The HAL1 1x sensors can operate without external com-
ponents. For applications with disturbances on the sup-
ply line or radiated disturbances, a series resistor and a
capacitor are recommended (see Fig. 51).
The series resistor and the capacitor should be placed
as closely as possible to the sensor.
OUT
GND
3
2
1V
DD
4.7 nF
VDD
RV
220
RL
Fig. 51: Recommended application circuit
HAL115
1
2
3
3.3 k R1
L1
R2
3.3 k
L2
C1C2
2.2 µ/50 V 2.2 µ
/50 V
VDD
Fig. 52: Recommended application circuit
for DC fans
5.2. Ambient Temperature
Due to the internal power dissipation, the temperature
on the silicon chip (junction temperature TJ) is higher
than the temperature outside the package (ambient tem-
perature TA).
TJ = TA + T
At static conditions, the following equation is valid:
T = IDD * VDD * Rth
For typical values, use the typical parameters. For worst
case calculation, use the max. parameters for IDD and
Rth, and the max. value for VDD from the application.
For all sensors, the junction temperature range TJ is
specified. The maximum ambient temperature TAmax
can be calculated as:
TAmax = TJmax T
5.3. Extended Operating Conditions
All sensors fulfill the electrical and magnetic characteris-
tics when operated within the Recommended Operating
Conditions (see page 6).
Please use the sensors of the HAL 5xx family if lower op-
eration voltage, lower current consumption or tighter
magnetic specifications required.
5.4. Start-up Behavior
The sensors have an initialization time (enable time
ten(O)) after applying the supply voltage. This parameter
ten(O) is specified in the Electrical Characteristics (see
page 7).
During the initialization time, the output state is not de-
fined and can toggle. After ten(O), the output will be low
if the applied magnetic field B is above BON or high if B
is below BOFF.
For magnetic fields between BOFF and BON, the output
state of the HAL sensor after applying VDD will be either
low or high. In order to achieve a well-defined output
state, the applied magnetic field must be above BONmax,
respectively, below BOFFmin.
HAL11x
15Micronas
HAL11x
16 Micronas
6. Data Sheet History
1. Final data sheet: HAL114 Unipolar Hall Switch IC,
June 10, 1998, 6251-456-1DS. First release of the final
data sheet.
2. Final data sheet: HAL115 Hall Effect Sensor IC,
May 7, 1997, 6251-414-1DS. First release of the final
data sheet.
3. Final data sheet: HAL114, HAL115 Hall Effect Sen-
sor Family, Dec. 20, 1999, 6251-456-2DS. Second re-
lease of the final data sheet. Major changes:
additional package SOT-89B
temperature range A replaced by K for HAL114
additional temperature range K for HAL115
outline dimensions for SOT-89A and TO-92UA
changed
supply voltage range changed for HAL115
Micronas GmbH
Hans-Bunte-Strasse 19
D-79108 Freiburg (Germany)
P.O. Box 840
D-79008 Freiburg (Germany)
Tel. +49-761-517-0
Fax +49-761-517-2174
E-mail: docservice@micronas.com
Internet: www.micronas.com
Printed in Germany
by Systemdruck+V erlags-GmbH, Freiburg (12/1999)
Order No. 6251-456-2DS
All information and data contained in this data sheet are without any
commitment, are not to be considered as an offer for conclusion of a
contract, nor shall they be construed as to create any liability . Any new
issue of this data sheet invalidates previous issues. Product availability
and delivery are exclusively subject to our respective order confirma-
tion form; the same applies to orders based on development samples
delivered. By this publication, Micronas GmbH does not assume re-
sponsibility for patent infringements or other rights of third parties
which may result from its use.
Further, Micronas GmbH reserves the right to revise this publication
and to make changes to its content, at any time, without obligation to
notify any person or entity of such revisions or changes.
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a retrieval system, or transmitted without the express written consent
of Micronas GmbH.