Hardware
Documentation
Dat a Sh e e t
HAL 1821...HAL 1823
Linear Hall-Effect Sensor Family
in SOT89B Package
®
Edition Aug. 2, 2013
DSH000162_001EN
HAL1821...HAL1823
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.
2
Aug. 2, 2013; DSH000162_001EN
Micronas
DATA SHEET
HAL1821...HAL1823
Contents
Page
4
4
4
4
4
4
5
5
5
6
6
7
7
8
8
8
9
9
10
11
12
13
13
13
13
14
Section
1.
1.1.
1.2.
1.3.
1.4.
1.5.
1.6.
1.7.
1.8.
2.
2.1.
3.
3.1.
3.2.
3.3.
3.4.
3.4.1.
3.5.
3.6.
3.7.
3.7.1.
4.
4.1.
4.2.
4.3.
5.
Title
Introduction
Major Applications
Features
Family Overview
Marking Code
Operating Junction Temperature Range (T
J
)
Hall Sensor Package Codes
Solderability and Welding
Pin Connections and Short Descriptions
Functional Description
General Function
Specifications
Outline Dimensions
Dimensions of Sensitive Area
Position of Sensitive Areas
Absolute Maximum Ratings
Storage and Shelf Life
Recommended Operating Conditions
Characteristics
Magnetic Characteristics
Definition of Sensitivity Error ES
Application Notes
Ambient Temperature
EMC and ESD
Application Circuit
Data Sheet History
Micronas
Aug. 2, 2013; DSH000162_001EN
3
HAL1821...HAL1823
Linear Hall-Effect Sensor Family in SOT89B Pack-
age
Release Note: Revision bars indicate significant
changes to the previous edition.
DATA SHEET
– operates from
40
°C up to 170 °C junction temper-
ature
– operates from 4.5 V up to 5.5 V supply voltage in
specification operates with static magnetic fields
and dynamic magnetic fields up to 2.25 kHz
– overvoltage and reverse-voltage protection
at V
SUP
pin
– magnetic characteristics extremely robust against
mechanical stress
– short-circuit protected push-pull output
– EMC and ESD optimized design
1. Introduction
The HAL182x is a new family of linear Hall-effect sen-
sors. It is a universal magnetic field sensor with a ratio-
metric, linear analog output. This sensor family can be
used for magnetic field measurements, current mea-
surements and detection of mechanical movements.
Very accurate angle measurements or distance mea-
surements can also be done. The sensors are very
robust and can be used in harsh environments.
The output voltage is proportional to the magnetic flux
density through the hall plate. The choppered offset
compensation leads to stable magnetic characteristics
over supply voltage and temperature.
The different family members vary by sensitivity
(25 mV/mT, 31.25 mV/mT and 50 mV/mT). The quies-
cent output voltage (offset) is for all family members
50% of supply voltage.
The sensor is designed for industrial applications and
operates in the junction temperature range from –40 °C
up to 170 °C.
1.3. Family Overview
Type
1821
1822
1823
Offset
50% of V
SUP
50% of V
SUP
50% of V
SUP
Sensitivity
50 mV/mT
31.25 mV/mT
25 mV/mT
see
Page
11
11
11
1.4. Marking Code
The HAL182x has a marking on the package surface
(branded side). This marking includes the name of the
sensor and the temperature range.
Type
Temperature Range
A
HAL 1821
HAL 1822
HAL 1823
1821A
1822A
1823A
1.1. Major Applications
Due to the sensor’s robust characteristics, the
HAL182x is the optimal system solution for applica-
tions such as:
– linear position measurements,
– angle sensors,
– distance measurements,
– magnetic field and current measurement.
1.5. Operating Junction Temperature Range (T
J
)
1.2. Features
– ratiometric linear output proportional to the mag-
netic field
– temperature and stress stable quiescent output volt-
age
– very accurate sensitivity and offset
– customized versions possible
– on-chip temperature compensation
– active offset compensation
The Hall sensors from Micronas are specified to the
chip temperature (junction temperature T
J
).
A:
TJ =
40
°C to +170 °C
The relationship between ambient temperature (T
A
)
and junction temperature is explained in Section 4.1.
on page 13.
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Aug. 2, 2013; DSH000162_001EN
Micronas
DATA SHEET
HAL1821...HAL1823
1.8. Pin Connections and Short Descriptions
Pin No.
Temperature Range: A
Package: SF for SOT89B-1
Type: 182x
1
2, 4
3
Pin Name
V
SUP
GND
OUT
Short Description
Supply Voltage Pin
Ground
Push-Pull Output
1.6. Hall Sensor Package Codes
HALXXXXPA-T
Example:
HAL1821SF-A
Type: 1821
Package: SOT89B-1
Temperature Range: T
J
=
40 C
to +170
C
1
V
DD
OUT
3
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”.
2, 4 GND
Fig. 1–1:
Pin configuration
1.7. 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.
Micronas
Aug. 2, 2013; DSH000162_001EN
5
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