MICRONAS
HAL501...506, 508, 509,
HAL516...519, 523
Hall Effect Sensor Family
Edition Feb. 14, 2001
6251-109-4E
6251-485-2DS
MICRONAS
HAL5xx
Contents
Page
3
3
3
4
4
4
4
4
5
6
6
6
6
7
7
8
9
14
14
16
18
20
22
24
26
28
30
32
34
36
38
40
40
40
40
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44
Section
1.
1.1.
1.2.
1.3.
1.3.1.
1.4.
1.5.
1.6.
2.
3.
3.1.
3.2.
3.3.
3.4.
3.5.
3.6.
3.7.
4.
4.1.
4.2.
4.3.
4.4.
4.5.
4.6.
4.7.
4.8.
4.9.
4.10.
4.11.
4.12.
4.13.
5.
5.1.
5.2.
5.3.
5.4.
6.
Title
Introduction
Features
Family Overview
Marking Code
Special Marking of Prototype Parts
Operating Junction Temperature Range
Hall Sensor Package Codes
Solderability
Functional Description
Specifications
Outline Dimensions
Dimensions of Sensitive Area
Positions of Sensitive Areas
Absolute Maximum Ratings
Recommended Operating Conditions
Electrical Characteristics
Magnetic Characteristics Overview
Type Descriptions
HAL501
HAL502
HAL503
HAL504
HAL505
HAL506
HAL508
HAL509
HAL516
HAL517
HAL518
HAL519
HAL523
Application Notes
Ambient Temperature
Extended Operating Conditions
Start-up Behavior
EMC
Data Sheet History
2
Micronas
HAL5xx
Hall Effect Sensor Family
in CMOS technology
Release Notes: Revision bars indicate significant
changes to the previous edition.
1. Introduction
The HAL5xx family consists of different Hall switches
produced in CMOS technology. All sensors include a
temperature-compensated Hall plate with active offset
compensation, a comparator, and an open-drain output
transistor. The comparator compares the actual mag-
netic flux through the Hall plate (Hall voltage) with the
fixed reference values (switching points). Accordingly,
the output transistor is switched on or off.
The sensors of this family differ in the switching behavior
and the switching points.
The active offset compensation leads to constant mag-
netic characteristics over supply voltage and tempera-
ture range. In addition, the magnetic parameters are ro-
bust against mechanical stress effects.
The sensors are designed for industrial and automotive
applications and operate with supply voltages from
3.8 V to 24 V in the ambient temperature range from
–40
°C
up to 150
°C.
All sensors are available in a SMD-package (SOT-89B)
and in a leaded version (TO-92UA).
1.1. Features:
– switching offset compensation at typically 62 kHz
– operates from 3.8 V to 24 V supply voltage
– overvoltage protection at all pins
– reverse-voltage protection at V
DD
-pin
– magnetic characteristics are robust against mechani-
cal stress effects
– short-circuit protected open-drain output by thermal
shut down
– operates with static magnetic fields and dynamic mag-
netic fields up to 10 kHz
– constant 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
– ideal sensor for applications in extreme automotive
and industrial environments
– EMC corresponding to DIN 40839
Latching 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
does not change if the magnetic field is removed. For
changing the output state, the opposite magnetic field
polarity must be applied.
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.
523
Type
501
502
503
504
505
506
508
509
516
517
518
519
Switching
Behavior
bipolar
latching
latching
unipolar
latching
unipolar
unipolar
unipolar
unipolar with
inverted output
unipolar with
inverted output
unipolar with
inverted output
unipolar with
inverted output
(north polarity)
unipolar
Sensitivity
very high
high
medium
medium
low
high
medium
low
high
medium
medium
high
see
Page
14
16
18
20
22
24
26
28
30
32
34
36
1.2. Family Overview
The types differ according to the magnetic flux density
values for the magnetic switching points, the tempera-
ture behavior of the magnetic switching points, and the
mode of switching.
low
38
Micronas
3
HAL5xx
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.
Unipolar Switching Sensors with Inverted Output:
The output turns high with the magnetic south pole on
the branded side of the package and turns low if the
magnetic field is removed. The sensor does not respond
to the magnetic north pole on the branded side.
Unipolar Switching Sensors with Inverted Output
Sensitive to North Pole:
The output turns high with the magnetic north pole on the
branded side of the package and turns low if the magnet-
ic field is removed. The sensor does not respond to the
magnetic south 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
A
HAL501
HAL502
HAL503
HAL504
HAL505
HAL506
HAL508
HAL509
HAL516
HAL517
HAL518
HAL519
HAL523
501A
502A
503A
504A
505A
506A
508A
509A
516A
517A
518A
519A
523A
Temperature Range
K
501K
502K
503K
504K
505K
506K
508K
509K
516K
517K
518K
519K
523K
E
501E
502E
503E
504E
505E
506E
508E
509E
516E
517E
518E
519E
523E
3
for lab experiments and design-ins but are not intended to
be used for qualification tests or as production parts.
1.4. Operating Junction Temperature Range
A:
T
J
= –40
°C
to +170
°C
K:
T
J
= –40
°C
to +140
°C
E:
T
J
= –40
°C
to +100
°C
The Hall sensors from Micronas are specified to the chip
temperature (junction temperature T
J
).
The relationship between ambient temperature (T
A
) and
junction temperature is explained in section 5.1. on page
40.
1.5. Hall Sensor Package Codes
HALXXXPA-T
Temperature Range: A, K, or E
Package: SF for SOT-89B
UA for TO-92UA
Type: 5xx
Example:
HAL505UA-E
→
Type: 505
→
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”.
1.6. Solderability
all packages: according to IEC68-2-58
During soldering reflow processing and manual rework-
ing, 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.
V
DD
1
OUT
1.3.1. Special Marking of Prototype Parts
Prototype parts are coded with an underscore beneath the
temperature range letter on each IC. They may be used
2
GND
Fig. 1–1:
Pin configuration
4
Micronas
HAL5xx
2. Functional Description
The HAL 5xx 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.
Magnetic offset caused by mechanical stress is com-
pensated for by using the “switching offset compensa-
tion technique”. Therefore, an internal oscillator pro-
vides a two phase clock. The Hall voltage is sampled at
the end of the first phase. At the end of the second
phase, both sampled and actual Hall voltages are aver-
aged and compared with the actual switching point. Sub-
sequently, the open drain output switches to the ap-
propriate state. The time from crossing the magnetic
switching level to switching of output can vary between
zero and 1/f
osc
.
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 reverse
voltages ranging from 0 V to –15 V.
V
DD
1
Reverse
Voltage &
Overvoltage
Protection
HAL5xx
HAL5xx
Temperature
Dependent
Bias
Hysteresis
Control
Short Circuit &
Overvoltage
Protection
Hall Plate
Switch
Comparator
Output
OUT
3
Clock
GND
2
Fig. 2–1:
HAL5xx block diagram
f
osc
t
B
B
ON
t
V
OUT
V
OH
V
OL
t
I
DD
1/f
osc
= 16
µs
t
f
t
Fig. 2–2:
Timing diagram
Micronas
5
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