MICRONAS
INTERMETALL
HAL114
Unipolar Hall Switch IC
MICRONAS
Edition June 10, 1998
6251-456-1DS
HAL114
Unipolar Hall Switch IC
in CMOS technology
Introduction
The HAL114 is a Hall switch produced in CMOS technol-
ogy. The sensor includes a temperature-compensated
Hall plate, a Schmitt trigger, and an open-drain output
transistor (see Fig. 2).
The HAL114 has a unipolar behavior: The output turns
low with a magnetic south pole on the branded side of
the package (see figures 3 and 4). The output turns high
if the magnetic field is removed. The output signal re-
mains high if the magnetic north pole approaches the
branded side of the package.
The sensor is designed for industrial and automotive ap-
plications and operates with supply voltages from 4.5 V
to 24 V in the ambient temperature range from –40°C up
to 150
°C.
The HAL114 is available in a SMD-package (SOT-89A)
and in a leaded version (TO-92UA).
Features:
– operates from 4.5 V to 24 V supply voltage
– overvoltage protection
– reverse-voltage protection at V
DD
-pin
– short-circuit protected open-drain output by thermal
shutdown
– operates with magnetic fields from DC to 20 kHz
– stable magnetic 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 switching points
– ideal sensor for contactless switches and speed mea-
surement in hostile automotive and industrial environ-
ments
Specifications
– switching type: unipolar
– output turns low with magnetic south pole on branded
side of package
– output turns high if magnetic field is removed
2
GND
Marking Code
Type
A
HAL114SO,
HAL114UA
114A
Temperature Range
E
114E
C
114C
Operating Junction Temperature Range (T
J
)
A:
T
J
= –40
°C
to +170
°C
E:
T
J
= –40
°C
to +100
°C
C:
T
J
= 0
°C
to +100
°C
The relationship between ambient temperature (T
A
) and
junction temperature (T
J
) is explained on page 8.
Hall Sensor Package Codes
HALXXXPA-T
Temperature Range: A, E, or C
Package: SO for SOT-89A,
UA for TO-92UA
Type: 114
Example:
HAL114UA-E
→
Type: 114
→
Package: TO-92UA
→
Temperature Range: T
J
= –40
°C
to +100
°C
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”.
Solderability
– Package SOT-89A: according to IEC68-2-58
– Package TO-92UA: according to IEC68-2-20
V
DD
1
OUT
3
Fig. 1:
Pin configuration
2
MICRONAS INTERMETALL
HAL114
Functional Description
The HAL114 is a CMOS integrated circuit with a switch-
ing output in response to magnetic fields. It processes
the “Hall Voltage” internally: The Hall Voltage is propor-
tional to the magnetic flux component Bz orthogonal to
an integrated Hall Plate, in case an electric current is im-
posed to the plate. The HAL114 compares the Hall Volt-
age with a predefined threshold and generates the out-
put signal dependent of the direction of the magnetic
field. A special circuit compensates for the temperature
dependent effects of the IC, as well as the external mag-
net. A built-in hysteresis eliminates possible oscillations
of the output signal adjacent to its switching point so that
“output bouncing” is avoided. The output is short-circuit
protected by limiting high currents and by sensing ex-
cess temperature. Shunt protection devices clamp
voltage peaks at the Output-Pin and V
DD
-Pin together
with external series resistors. Reverse current is limited
at the V
DD
-Pin by an internal series resistor up to –15 V.
No external reverse protection diode is needed at the
V
DD
-Pin for values ranging from 0 V to –15 V.
Outline Dimensions
4.55
±0.1
0.125
0.7
1.7
2
y
sensitive area
4
±0.2
2.6
±0.1
top view
1
0.4
0.4
1.5
3.0
2
3
0.4
1.53
±0.05
branded side
0.05
±0.05
SPGS7001-6-A/2E
HAL114
V
DD
1
Reverse
Voltage &
Overvoltage
Protection
Temperature
Dependent
Bias
Hysteresis
Control
Short Circuit &
Overvoltage
Protection
Fig. 3:
Plastic Small Outline Transistor Package
(SOT-89A)
Weight approximately 0.04 g
Dimensions in mm
1.5
±0.05
Hall Plate
Comparator
Output
3
GND
2
OUT
0.3
4.06
±0.1
sensitive area
2.03
y
3.05
±0.1
Fig. 2:
HAL114 block diagram
0.36
0.48
0.55
1
2
3
0.5
1.27 1.27
2.54
branded side
3.1
14.0
min.
0.42
Dimensions of Sensitive Area
0.4 mm x 0.2 mm
Positions of Sensitive Area
45°
0.8
SOT-89A
x = 0
±
0.2
y = 0.98
±
0.2
TO-92UA
x = 0
±
0.2
y = 1.0
±
0.2
SPGS7002-6-A/1E
x is referenced to the center of the package
Fig. 4:
Plastic Transistor Single Outline Package
(TO-92UA)
Weight approximately 0.12 g
Dimensions in mm
MICRONAS INTERMETALL
3
HAL114
Absolute Maximum Ratings
Symbol
V
DD
–V
P
–I
DD
I
DDZ
V
O
I
O
I
Omax
I
OZ
T
S
T
J
Parameter
Supply Voltage
Test Voltage for Supply
Reverse Supply Current
Supply Current through
Protection Device
Output Voltage
Continuous Output On Current
Peak Output On Current
Output Current through
Protection Device
Storage Temperature Range
Junction Temperature Range
Pin No.
1
1
1
1
3
3
3
3
Min.
–15
–24
2)
–
–200
3)
–0.3
–
–
–200
3)
–65
–40
–40
Max.
28
1)
–
50
1)
200
3)
28
1)
30
250
3)
200
3)
150
150
170
4)
Unit
V
V
mA
mA
V
mA
mA
mA
°C
°C
1)
as long as T max is not exceeded
J
2)
with a 220
Ω
series resistance at pin
3)
t < 2 ms
4)
t < 1000h
1 corresponding to test circuit 1
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.
Recommended Operating Conditions
Symbol
V
DD
I
O
R
V
Parameter
Supply Voltage
Continuous Output On Current
Series Resistor
Pin No.
1
3
1
Min.
4.5
0
–
Typ.
–
–
–
Max.
24
20
270
Unit
V
mA
Ω
Electrical Characteristics
at T
J
= –40
°C
to +170
°C
, V
DD
= 4.5 V to 24 V, as not otherwise specified in Test Conditions
Typical Characteristics for T
J
= 25
°C
and V
DD
= 12 V
Symbol
V
OL
V
OL
I
OH
Parameter
Output Voltage over
Temperature Range
Output Voltage over
Temperature Range
Output Leakage Current
Pin No.
3
Min.
–
Typ.
120
Max.
400
Unit
mV
Test Conditions
I
OL
= 12.5 mA
I
OL
= 20 mA
B < B
off
,
V
OH
= 24 V, T
J
= 25
°C
3
–
190
500
mV
µA
3
–
–
1
4
MICRONAS INTERMETALL
HAL114
Electrical Characteristics,
continued
Symbol
I
OH
I
DD
I
DD
t
en(O)
t
r
t
f
R
thJSB
case
SOT-89A
R
thJA
case
TO-92UA
Parameter
Output Leakage Current over
Temperature Range
Supply Current
Supply Current over
Temperature Range
Enable Time of Output
after Setting of V
DD
Output Rise Time
Pin No.
3
Min.
–
Typ.
–
Max.
10
Unit
µA
Test Conditions
B < B
off
V
OH
= 24 V, T
J
< 150
°C
T
J
= 25
°C
1
1
6
3.9
8.2
8.2
11
12
mA
mA
µs
3
–
6
10
V
DD
= 12 V
V
DD
= 12 V, RL = 820 Ohm,
CL = 20 pF
V
DD
= 12 V, RL = 820 Ohm,
CL = 20 pF
Fiberglass Substrate
pad size see Fig. 6
3
–
85
400
ns
Output Fall Time
3
–
60
400
ns
Thermal Resistance Junction to
Substrate Backside
–
150
200
K/W
Thermal Resistance
Junction to Soldering Point
–
150
200
K/W
Leads at ambient tempera-
ture at a distance of 2 mm
from case
Magnetic Characteristics
at T
J
= –40
°C
to +170
°C,
V
DD
= 4.5 V to 24 V,
Typical Characteristics for V
DD
= 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
Min.
On point B
ON
Off point B
OFF
Hysteresis B
HYS
7.5
4.3
2.8
–40
°C
Typ.
21.5
17.4
4.1
Max.
36.0
33.2
5.0
Min.
7.0
4.0
2.8
25
°C
Typ.
21.3
17.6
3.7
Max.
34.0
31.2
4.5
Min.
6.3
3.6
2.6
100
°C
Typ.
19.6
16.1
3.5
Max.
31.5
28.9
4.0
Min.
6.0
3.6
2.2
170
°C
Typ.
19.2
15.8
3.4
Max.
31.0
28.8
4.0
mT
mT
mT
Unit
Output Voltage
5.0
2.0
0 B
OFF min
B
OFF
B
HYS
B
ON
B
ON max
1.0
2.0
Fig. 5:
Definition of switching points and hysteresis
Fig. 6:
Recommended pad size SOT-89A
Dimensions in mm
MICRONAS INTERMETALL
5
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