Hardware
Documentation
Data Sheet
HAL 54x
Hall-Effect Sensor Family
®
Edition Feb. 12, 2009
DSH000023_003EN
HAL54x
Copyright, Warranty, and Limitation of Liability
The information and data contained in this document
are believed to be accurate and reliable. The software
and proprietary information contained therein may be
protected by copyright, patent, trademark and/or other
intellectual property rights of Micronas. All rights not
expressly granted remain reserved by Micronas.
Micronas assumes no liability for errors and gives no
warranty representation or guarantee regarding the
suitability of its products for any particular purpose due
to these specifications.
By this publication, Micronas does not assume respon-
sibility for patent infringements or other rights of third
parties which may result from its use. Commercial con-
ditions, product availability and delivery are exclusively
subject to the respective order confirmation.
Any information and data which may be provided in the
document can and do vary in different applications,
and actual performance may vary over time.
All operating parameters must be validated for each
customer application by customers’ technical experts.
Any new issue of this document invalidates previous
issues. Micronas reserves the right to review this doc-
ument and to make changes to the document’s content
at any time without obligation to notify any person or
entity of such revision or changes. For further advice
please contact us directly.
Do not use our products in life-supporting systems,
aviation and aerospace applications! Unless explicitly
agreed to otherwise in writing between the parties,
Micronas’ products are not designed, intended or
authorized for use as components in systems intended
for surgical implants into the body, or other applica-
tions intended to support or sustain life, or for any
other application in which the failure of the product
could create a situation where personal injury or death
could occur.
No part of this publication may be reproduced, photo-
copied, stored on a retrieval system or transmitted
without the express written consent of Micronas.
Micronas Trademarks
– HAL
DATA SHEET
Micronas Patents
Choppered Offset Compensation protected by
Micronas patents no. US5260614, US5406202,
EP0525235 and EP0548391.
Third-Party Trademarks
All other brand and product names or company names
may be trademarks of their respective companies.
2
Feb. 12, 2009; DSH000023_003EN
Micronas
DATA SHEET
HAL54x
Contents, continued
Page
4
4
4
5
5
5
5
5
6
7
7
12
12
12
12
13
14
15
19
19
21
23
25
27
27
27
27
27
28
Section
1.
1.1.
1.2.
1.3.
1.4.
1.5.
1.6.
1.7.
2.
3.
3.1.
3.2.
3.3.
3.4.
3.4.1.
3.5.
3.6.
3.7.
4.
4.1.
4.2.
4.3.
4.4.
5.
5.1.
5.2.
5.3.
5.4.
6.
Title
Introduction
Features
Family Overview
Marking Code
Operating Junction Temperature Range
Hall Sensor Package Codes
Solderability and Welding
Pin Connections
Functional Description
Specifications
Outline Dimensions
Dimensions of Sensitive Area
Positions of Sensitive Areas
Absolute Maximum Ratings
Storage and Shelf Life
Recommended Operating Conditions
Characteristics
Magnetic Characteristics Overview
Type Description
HAL542
HAL543
HAL546
HAL548
Application Notes
Ambient Temperature
Extended Operating Conditions
Start-up Behavior
EMC and ESD
Data Sheet History
Micronas
Feb. 12, 2009; 000023_003ENDS
3
HAL54x
Hall-Effect Sensor Family
Release Note: Revision bars indicate significant
changes to the previous edition.
DATA SHEET
– ideal sensor for applications in extreme automotive
and industrial environments
– EMC corresponding to ISO 7637
1. Introduction
The HAL54x 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 out-
put transistor. The comparator compares the actual
magnetic flux through the Hall plate (Hall voltage) with
the fixed reference values (switching points). Accord-
ingly, the output transistor is switched on or off.
In addition to the HAL50x/51x family, the HAL54x fea-
tures a power-on and undervoltage reset.
The sensors of this family differ in the switching behav-
ior 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
robust against mechanical stress effects.
The sensors are designed for industrial and automo-
tive applications and operate with supply voltages
from 4.3 V to 24 V in the ambient temperature range
from
−40°C
up to 150°C.
All sensors are available in the SMD-package
SOT89B-1 and in the leaded versions TO92UA-1 and
TO92UA-2.
1.2. Family Overview
The types differ according to the magnetic flux density
values for the magnetic switching points and the tem-
perature behavior of the magnetic switching points.
Type
542
543
546
548
Switching
Behavior
latching
unipolar
unipolar
unipolar
Sensitivity
high
low
high
medium
see
Page
19
21
23
25
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 out-
put does not change if the magnetic field is removed.
For changing the output state, the opposite magnetic
field polarity must be applied.
Unipolar Sensors:
The output turns low with the magnetic south pole on
the branded side of the package and turns high if the
magnetic field is removed. The sensor does not
respond to the magnetic north pole on the branded
side.
1.1. Features
– switching offset compensation at typically 62 kHz
– operates from 4.3 V to 24 V supply voltage
– overvoltage protection at all pins
– reverse-voltage protection at V
DD
-pin
– magnetic characteristics are robust against
mechanical stress effects
– short-circuit protected open-drain output by thermal
shut down
– operates with static magnetic fields and dynamic
magnetic fields up to 10 kHz
– constant switching points over a wide supply volt-
age range
– the decrease of magnetic flux density caused by ris-
ing temperature in the sensor system is compen-
sated by a built-in negative temperature coefficient
of the magnetic characteristics
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Feb. 12, 2009; DSH000023_003EN
Micronas
DATA SHEET
HAL54x
1.5. Hall Sensor Package Codes
HALXXXPA-T
Temperature Range: K or E
Package: SF for SOT89B-1
UA for TO92UA
1.3. Marking Code
All Hall sensors have a marking on the package sur-
face (branded side). This marking includes the name
of the sensor and the temperature range.
Type
K
HAL542
HAL543
HAL546
HAL548
542K
543K
546K
548K
Temperature Range
E
Type: 54x
Example:
HAL542UA-K
542E
543E
546E
548E
→
Type: 542
→
Package: TO92UA
→
Temperature Range: T
J
=
−40 °C
to +140
°C
Hall sensors are available in a wide variety of packag-
ing versions and quantities. For more detailed informa-
tion, please refer to the brochure: “Hall Sensors:
Ordering Codes, Packaging, Handling”.
1.4. Operating Junction Temperature Range
The Hall sensors from Micronas are specified to the
chip temperature (junction temperature T
J
).
K:
T
J
=
−40 °C
to +140
°C
E:
T
J
=
−40 °C
to +100
°C
Note:
Due to power dissipation, there is a difference
between the ambient temperature (T
A
) and junc-
tion temperature. Please refer to section 5.1. on
page 27 for details.
1.6. Solderability and Welding
Soldering
During soldering reflow processing and manual
reworking, a component body temperature of 260
°C
should not be exceeded.
Welding
Device terminals should be compatible with laser and
resistance welding. Please note that the success of
the welding process is subject to different welding
parameters which will vary according to the welding
technique used. A very close control of the welding
parameters is absolutely necessary in order to reach
satisfying results. Micronas, therefore, does not give
any implied or express warranty as to the ability to
weld the component.
1.7. Pin Connections
1 V
DD
3
OUT
2, 4 GND
Fig. 1–1:
Pin configuration
Micronas
Feb. 12, 2009; DSH000023_003EN
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