Hardware
Documentation
Dat a Sh e e t
HAL 202
Hall-Effect Sensor
®
Edition Sept. 18, 2014
DSH000159_002EN
HAL202
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 docu-
ment 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,
military, aviation, or 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
applications 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
Third-Party Trademarks
All other brand and product names or company names
may be trademarks of their respective companies.
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Micronas
DATA SHEET
HAL202
Contents
Page
4
4
4
5
5
5
6
7
7
9
9
9
9
10
10
10
11
12
14
14
14
14
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15
Section
1.
1.1.
1.2.
2.
2.1.
2.2.
3.
4.
4.1.
4.2.
4.3.
4.4.
4.5.
4.6.
4.6.1.
4.7.
4.8.
4.9.
5.
5.1.
5.2.
5.2.1.
5.2.2.
5.3.
6.
Title
Introduction
Features
Type Description
Ordering Information
Marking Code
Operating Junction Temperature Range
Functional Description
Specifications
Outline Dimensions
Soldering, Welding and Assembly
Pin Connections
Dimensions of Sensitive Area
Positions of Sensitive Areas
Absolute Maximum Ratings
Storage and Shelf Life
Recommended Operating Conditions
Characteristics
Magnetic Characteristics Overview
Application Notes
Ambient Temperature
Operation
Extended Operating Conditions
Start-up Behavior
EMC and ESD
Data Sheet History
Micronas
Sept. 18, 2014; DSH000159_002EN
3
HAL202
1. Introduction
Release Note: Revision bars indicate significant
changes to the previous edition.
The HAL202 Hall switch is produced in CMOS tech-
nology. The sensor includes a temperature-compen-
sated Hall plate with active offset compensation, a
comparator, and an open-drain output transistor. The
comparator compares the actual magnetic flux through
the Hall plate (Hall voltage) with the fixed reference
values (switching points). Accordingly, the output tran-
sistor is switched on or off.
The active offset compensation leads to magnetic
parameters which are robust against mechanical
stress effects. In addition, the magnetic characteristics
are constant in the full supply voltage and temperature
range.
The sensor is designed for industrial and automotive
applications and operates with supply voltages from
3.8 V to 24 V in the junction temperature range from
40 C
up to 170
C.
The HAL202 is available in the SMD package
SOT89B-3 and in the leaded versions TO92UA-5 and
TO92UA-6.
1.2. Type Description
Latching Sensors:
DATA SHEET
The sensor has a latching behavior and require a mag-
netic north and south pole for correct functioning. 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.
1.1. Features
– switching offset compensation
– operates from 3.8 V to 24 V supply voltage
– operates with static magnetic fields and dynamic
magnetic fields up to 10 kHz
– 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
– constant switching points over a wide supply voltage
and temperature range
– the decrease of magnetic flux density caused by
rising temperature in the sensor system is compen-
sated by a built-in negative temperature coefficient
of the magnetic characteristics
– superior temperature stability for automotive or
industrial applications
– high ESD rating
– EMC corresponding to ISO 7637
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Micronas
DATA SHEET
HAL202
2. Ordering Information
2.1. 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
A
K
202K
HAL202
202A
2.2. Operating Junction Temperature Range
The Hall sensors from Micronas are specified to the
chip temperature (junction temperature T
J
).
A:
T
J
=
40 C
to +170
C
K:
T
J
=
40 C
to +140
C
Note:
Due to power dissipation, there is a difference
between the ambient temperature (T
A
) and
junction temperature. Please refer to section
5.1. on page 14 for details.
Hall Sensor Package Codes
HALXXXPA-T
Temperature Range: A or K
Package: TQ for SOT89B-3
JQ for TO92UA-5/6
Type: 2xy
Example:
HAL202JQ-A
Type: 202
Package: TO92UA-6
Temperature Range: T
J
=
40 C
to +170
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”.
Micronas
Sept. 18, 2014; DSH000159_002EN
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