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Hardware Documentation
Data Sheet
HAL 2xy
Hall-Effect Sensor Family
(R)
Edition Jan. 11, 2010 DSH000141_003EN
HAL 2xy
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 responsibility for patent infringements or other rights of third parties which may result from its use. Commercial conditions, 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 document 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 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, photocopied, 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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DATA SHEET
HAL 2xy
Contents Page 4 4 4 5 5 5 6 7 7 9 9 9 9 10 10 12 15 15 15 15 15 15 15 15 16 17 Section 1. 1.1. 1.2. 1.3. 1.4. 1.5. 2. 3. 3.1. 3.2. 3.3. 3.4. 3.4.1. 3.5. 3.6. 3.7. 4. 4.1. 4.2. 4.2.1. 4.2.2. 4.3. 4.3.1. 4.3.2. 4.4. 5. Title Introduction Features Family Overview Marking Code Operating Junction Temperature Range Solderability and Welding 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 Application Notes Ambient Temperature HAL20y, HAL21y Operation Extended Operating Conditions Start-up Behavior HAL22y Operation Extended Operating Conditions Start-up Behavior EMC and ESD Data Sheet History
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Hall-Effect Sensor Family Release Note: Revision bars indicate significant changes to the previous edition.
DATA SHEET
- superior temperature stability for automotive or industrial applications - high ESD rating - EMC corresponding to ISO 7637
1. Introduction 1.2. Family Overview The HAL 2xy Hall switch family is produced in CMOS technology. The sensors include a temperature-compensated 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 transistor is switched on or off. In addition the HAL22y sensors features a power-on and undervoltage reset. 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 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 125 C. For HAL22y the minimum supply voltage is 4.3 V. The HAL 2xy family is available in the SMD package SOT89B-3 and in the leaded versions TO92UA-5 and TO92UA-6. This sensor family consists of sensors with latching and unipolar output behavior. Type 201 202 203 204 206 207 208 210 211 Switching Behavior unipolar latching latching latching unipolar unipolar unipolar unipolar unipolar with inverted output (north polarity) unipolar Sensitivity low high medium low high low medium high high see Page 12 12 12 12 12 12 12 12 12
212 1.1. Features - switching offset compensation - operates from 3.8 V to 24 V supply voltage (HAL22y minimum supply voltage is 4.3 V) - power-on and undervoltage reset in case of HAL22y - operates with static magnetic fields and dynamic magnetic fields up to 10 kHz - overvoltage protection at all pins - reverse-voltage protection at VDD-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 compensated by a built-in negative temperature coefficient of the magnetic characteristics
low
12
Family members with power-on and undervoltage reset (HAL22y): Type 220 221 Switching Behavior latching unipolar Sensitivity high low see Page 12 12
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DATA SHEET
HAL 2xy
1.4. Operating Junction Temperature Range The Hall sensors from Micronas are specified to the chip temperature (junction temperature TJ). K: TJ = -40 C to +140 C Note: Due to power dissipation, there is a difference between the ambient temperature (TA) and junction temperature. Please refer to section 4.1. on page 15 for details.
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. Latching Sensors: The sensors have a latching behavior and require a magnetic 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. 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 magnetic field is removed. The sensor does not respond to the magnetic south pole on the brandedside.
Hall Sensor Package Codes HALXXXPA-T Temperature Range: K Package: TQ for SOT89B-3 JQ for TO92UA-5/6 Type: 2xy Example: HAL202JQ-K Type: 202 Package: TO92UA-6 Temperature Range: TJ = -40 C to +140 C Hall sensors are available in a wide variety of packaging versions and quantities. For more detailed information, please refer to the brochure: "Hall Sensors. Ordering Codes, Packaging, Handling".
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
Temperature Range K
1.5. Solderability and Welding During soldering reflow processing and manual reworking, a component body temperature of 260 C should not be exceeded. Device terminals shall be compatible with laser and electrical 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.
HAL201 HAL202 HAL203 HAL204 HAL206 HAL207 HAL208 HAL210 HAL211 HAL212 HAL220 HAL221
201K 202K 203K 204K 206K 207K 208K 210K 211K 212K 220K 221K
1 VDD 3 OUT
2 GND
Fig. 1-1: Pin configuration
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2. Functional Description The Hall effect sensor is a monolithic integrated circuit that switches 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 compensated for by using the "switching offset compensation technique". Therefore, an internal oscillator provides 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 averaged and compared with the actual switching point. Subsequently, the open drain output switches to the appropriate state. The time from crossing the magnetic switching level to switching of output can vary between zero and 1/fosc. Shunt protection devices clamp voltage peaks at the Output pin and VDD-pin together with external series resistors. Reverse current is limited at the VDD-pin by an internal series resistor up to -15 V. No external reverse protection diode is needed at the VDD-pin for reverse voltages ranging from 0 V to -15 V. In case of HAL22y a built-in reset-circuit clamps the output to the "high" state (reset state) during power-on or when the supply voltage drops below the reset voltage of Vreset < 4.3 V. For supply voltages between Vreset and 4.3 V, the output state of the device responds to the magnetic field. For supply voltages above 4.3 V, the device works according to the specified characteristics.
1 VDD Reverse Voltage & Overvoltage Protection Temperature Dependent Bias Hysteresis Control
DATA SHEET
Short Circuit and Overvoltage Protection
Hall Plate Comparator 3 Switch Output OUT
Clock
2 GND
Fig. 2-1: HAL20y and HAL21y block diagram
VDD 1
Reverse Voltage & Overvoltage Protection
Temperature Dependent Bias
Hysteresis Control
Power-on & Undervoltage Reset
Short Circuit & Overvoltage Protection
Hall Plate Switch
Comparator Output
OUT 3
Clock GND 2
Fig. 2-2: HAL22y block diagram
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DATA SHEET
HAL 2xy
3. Specifications 3.1. Outline Dimensions
Fig. 3-1: SOT89B-3: Plastic Small Outline Transistor package, 4 leads, with one sensitive area Weight approximately 0.034 g.
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DATA SHEET
Fig. 3-2: TO92UA-6: Plastic Transistor Standard UA package, 3 leads Weight approximately 0.106 g
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DATA SHEET
HAL 2xy
3.2. Dimensions of Sensitive Area 0.25 mm x 0.12 mm (on chip) 3.3. Positions of Sensitive Areas SOT89B-3 y A4 0.95 mm nominal 0.33 mm nominal TO92UA-5/6 1.08 mm nominal 0.30 mm nominal
3.4. Absolute Maximum Ratings 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 conditions is not implied. Exposure to absolute maximum rating conditions for extended periods will affect device reliability. This device contains circuitry to protect the inputs and outputs against damage due to high static voltages or electric fields; however, it is advised that normal precautions be taken to avoid application of any voltage higher than absolute maximum-rated voltages to this high-impedance circuit. All voltages listed are referenced to ground (GND). Symbol VDD VO IO TJ
1) 2)
Parameter Supply Voltage Output Voltage Continuous Output On Current Junction Temperature Range
Pin Name 1 3 3
Min. -15 -0.3 - -40
Max. 281) 281) 501) 1702)
Unit V V mA C
as long as TJmax is not exceeded t < 1000 h
3.4.1. Storage and Shelf Life The permissible storage time (shelf life) of the sensors is unlimited, provided the sensors are stored at a maximum of 30 C and a maximum of 85% relative humidity. At these conditions, no Dry Pack is required. Solderability is guaranteed for one year from the date code on the package.
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3.5. Recommended Operating Conditions
DATA SHEET
Functional operation of the device beyond those indicated in the "Recommended Operating Conditions/Characteristics" is not implied and may result in unpredictable behavior, reduce reliability and lifetime of the device. All voltages listed are referenced to ground (GND). Symbol VDD VDD IO VO Parameter Supply Voltage Supply Voltage Continuous Output on Current Output Voltage (output switched off) Pin Name 1 1 3 3 Min. 3.8 4.3 0 0 Max. 24 24 20 24 Unit V V mA V Comment for HAL20y and HAL21y only for HAL22y only
3.6. Characteristics at TJ = -40 C to +140 C, VDD = 3.8 V to 24 V (HAL22y: VDD = 4.3 V to 24 V), GND = 0 V at Recommended Operation Conditions if not otherwise specified in the column "Conditions". Typical Characteristics for TJ = 25 C and VDD = 12 V.
Symbol IDD VDDZ VOZ VOL IOH fosc Parameter Supply Current over Temperature Range Overvoltage Protection at Supply Overvoltage Protection at Output Output Voltage over Temperature Range Output Leakage Current over Temperature Range Internal Oscillator Chopper Frequency over Temperature Range Enable Time of Output after Setting of VDD Reset Voltage Output Rise Time Output Fall Time Pin No. 1 Min. 1.6 - - - - - - 1 - - 1 3 3 - - - Typ. 3 Max. 5.2 Unit mA IDD = 25 mA, TJ = 25 C, t = 20 ms IOH = 25 mA, TJ = 25 C, t = 20 ms IOL = 20 mA Output switched off, TJ 150 C, VOH = 3.8 to 24 HAL20y, HAL21y, HAL22y HAL204
1) 1)
Conditions
1
28.5
32
V
3 3
28 130 - 62 140 35 70 3.8 75 50
32 400
V mV
3 -
10 - - - - - 400 400
A
kHz kHz s s V ns ns
ten(O)
For HAL20y, HAL21y only For HAL 22y only
Vreset tr tf
For HAL 22y only VDD = 12 V, RL = 820 Ohm, CL = 20 pF
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DATA SHEET
HAL 2xy
Symbol
Parameter
Pin No.
Min.
Typ.
Max.
Unit
Conditions
SOT89B Package Thermal Resistance Rthja Rthjc Junction to Ambient Junction to Case - - - - - - 212 73 K/W K/W Measured with a 1s0p board 30 mm x 10 mm x 1.5 mm, pad size (see Fig. 3-3)
TO92UA Package Thermal Resistance Rthja Rthjc
1)
Measured with a 1s0p board - - - - - - 225 63 K/W K/W
Junction to Ambient Junction to Case
VDD = 12 V, B > BON + 2 mT or B < BOFF - 2 mT and B > BOFF + 2 mT or B < BON - 2 mT for HAL 212
1.80
1.05
1.45 2.90
1.05 0.50 1.50
Fig. 3-3: Recommended footprint SOT89B-3, Dimensions in mm All dimensions are for reference only. The pad size may vary depending on the requirements of the soldering process.
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3.7. Magnetic Characteristics Overview at TJ = -40 C to +140 C, VDD = 3.8 V to 24 V, (HAL22y: VDD = 4.3 V to 24 V) Typical Characteristics for VDD = 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.
DATA SHEET
Sensor Switching Type HAL201 unipolar
Parameter TJ -40 C 25 C 140 C Min. 28 28 26 0.5 0.5 0.1 5.5 5 3.5 10.5 10 6.0 8.8 8.1 7.4 19.6 19.6 18.4 13.1 12.7 10.8 2.3 2.3 2.3
On point BON Typ. 33 34 32 2.8 2.6 2.4 8.4 7.6 6.7 15.8 14 10 12.5 12.0 10.0 27.5 26.5 26.0 17.5 17.0 14.6 8.1 7.9 7.7 Max. 42 42 42 6.5 6 5.5 12.5 11.5 11.0 21.5 18.5 15.5 18.0 16.5 16.0 35.8 35.0 33.6 25.0 23.8 23.0 12.0 12.0 12.0 Min. 18 18 17.5 -6.5 -6 -5.5 -12.5 -11.5 -11.0 -21.5 -18.5 -15.5 4.5 4.2 3.4 16.9 16.9 15.8 11.9 11.4 9.7 1.8 1.8 1.8
Off point BOFF Typ. 23 24 22 -2.8 -2.6 -2.4 -8.6 -7.6 -6.4 -15.8 -14 -10 7.0 6.5 6.0 23.0 22.5 22.0 15.7 15.0 13.0 5.9 5.7 5.7 Max. 30 30 30 -0.5 -0.5 -0.1 -5.5 -5 -3.5 -10.5 -10 -6.0 11.0 10.4 9.9 31.3 30.6 29.4 23.0 21.9 21.0 11.5 11.5 11.5 Min. - - - - - - - - - - - - - - - - - - - - - - - -
Hysteresis BHYS Typ. 10.0 10.0 10.0 5.6 5.2 4.8 17 15.2 13.1 31.6 28 20 5.5 5.5 4.0 4.5 4.0 4.0 1.8 2.0 1.6 2.2 2.2 2.0 Max. - - -
Unit
mT mT mT mT mT mT mT mT mT mT mT mT mT mT mT mT mT mT mT mT mT mT mT mT
HAL202 latching
-40 C 25 C 140 C
- - -
- - - - - - - - - - - - - - - - - -
HAL203 latching
-40 C 25 C 140 C
HAL204 latching
-40 C 25 C 140 C
HAL206 unipolar
-40 C 25 C 140 C
HAL207 unipolar
-40 C 25 C 140 C
HAL208 unipolar
-40 C 25 C 140 C
HAL210 unipolar
-40 C 25 C 140 C
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DATA SHEET
HAL 2xy
Sensor Switching Type HAL211 unipolar inverted HAL 212 unipolar
Parameter TJ -40 C 25 C 140 C -40 C 25 C 140 C Min. -11.5 -11.5 -11.5 25.8 24.1 20.4 0.5 0.5 0.3 13.0 13.0 13.0
On point BON Typ. -4.9 -5.2 -5.5 30.6 28.9 25.6 2.8 2.6 2.4 19.0 18.5 17.5 Max. -1.8 -1.8 -1.8 35.2 34.5 32.0 6.5 6 5.5 23.0 23.0 23.0 Min. -12.0 -12.0 -12.0 23.8 22.3 18.9 -6.5 -6 -5.5 7.5 7.5 7.5
Off point BOFF Typ. -7.4 -7.6 -7.7 28.6 27.1 24.1 -2.8 -2.6 -2.4 12.0 12.0 11.5 Max. -2.3 -2.3 -2.3 33.2 32.7 30.5 -0.5 -0.5 -0.3 17.5 17.5 17.5 Min. - - - - - - - - - - - -
Hysteresis BHYS Typ. 2.5 2.4 2.3 2.0 1.8 1.5 5.6 5.2 4.8 7.0 6.5 6.0 Max. - - - - - - - - - - - -
Unit
mT mT mT mT mT mT mT mT mT mT mT mT
HAL220 latching
-40 C 25 C 140 C
HAL221 unipolar
-40 C 25 C 140 C
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DATA SHEET
mA 25 20 IDD 15 10 5 0 -5 TA = -40 C TA = 25 C TA = 140 C
HAL 2xy
mA 5
HAL 2xy
IDD
4
3
2 VDD = 3.8 V VDD = 12 V 1 VDD = 24 V
-10 -15 -15-10 -5 0 0 -50
5 10 15 20 25 30 35 V VDD
0
50
100
150 TA
200 C
Fig. 3-4: Typical supply current versus supply voltage
Fig. 3-6: Typical supply current versus ambient temperature
mA 5.0 4.5 IDD 4.0 3.5
HAL 2xy
TA = -40 C TA = 25 C
3.0 2.5 2.0 1.5 1.0 0.5 0 TA = 100 C TA = 140 C
1
2
3
4
5
6 VDD
7
8V
Fig. 3-5: Typical supply current versus supply voltage
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DATA SHEET
HAL 2xy
4.2.2. Start-up Behavior Due to the active offset compensation, the sensors have an initialization time (enable time ten(O)) after applying the supply voltage. The parameter ten(O) is specified in Section 3.6.: Characteristics on page 10. During the initialization time, the output state is not defined and the output can toggle. After ten(O), the output will be low if the applied magnetic field B is above BON. The output will be high if B is below BOFF. In case of sensors with an inverted switching behavior (HAL211), the output state will be high if B > BOFF and low if B < BON. For magnetic fields between BOFF and BON, the output state of the HAL sensor after applying VDD will be either low or high. In order to achieve a well-defined output state, the applied magnetic field must be above BONmax, respectively, below BOFFmin. 4.3. HAL22y Operation 4.3.1. Extended Operating Conditions All sensors fulfill the electrical and magnetic characteristics when operated within the Recommended Operating Conditions (see page 10).
4. Application Notes 4.1. Ambient Temperature Due to the internal power dissipation, the temperature on the silicon chip (junction temperature TJ) is higher than the temperature outside the package (ambient temperature TA).
T J = T A + T
At static conditions and continuous operation, the following equation applies:
T = I DD x V DD x R th
If IOUT > IDD, please contact Micronas application support for detailed instructions on calculating ambient temperature. For typical values, use the typical parameters. For worst case calculation, use the max. parameters for IDD and Rth, and the max. value for VDD from the application. For all sensors, the junction temperature range TJ is specified. The maximum ambient temperature TAmax can be calculated as:
T Amax = T Jmax - T
Supply Voltage Below 4.3 V The devices contain a Power-on Reset (POR) and a undervoltage reset. For VDD < Vreset the output state is high. For Vreset < VDD < 4.3 V the device responds to the magnetic field according to the specified magnetic characteristics.
4.2. HAL20y, HAL21y Operation 4.2.1. Extended Operating Conditions All sensors fulfill the electrical and magnetic characteristics when operated within the Recommended Operating Conditions (see page 10).
Note: The functionality of the sensor below 4.3 V is not tested. For special test conditions, please contact Micronas.
4.3.2. Start-up Behavior Due to the active offset compensation, the sensors have an initialization time (enable time ten(O)) after applying the supply voltage. The parameter ten(O) is specified in Section 3.6.: Characteristics on page 10. During the initialization time, the output state for the HAL22y is `Off-state` (i.e. Output High). After ten(O), the output will high. The output will be switched to low if the magnetic field B is above BON.
Supply Voltage Below 3.8 V Typically, the sensors operate with supply voltages above 3 V, however, below 3.8 V some characteristics may be outside the specification.
Note: The functionality of the sensor below 3.8 V is not tested. For special test conditions, please contact Micronas.
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4.4. EMC and ESD For applications with disturbances on the supply line or radiated disturbances, a series resistor and a capacitor are recommended (see Fig. 4-1). The series resistor and the capacitor should be placed as closely as possible to the HAL sensor. Applications with this arrangement passed the EMC tests according to the product standards ISO 7637. Please contact Micronas for the detailed investigation reports with the EMC and ESD results.
DATA SHEET
RV 220 1 VEMC VP 4.7 nF VDD OUT 3 20 pF 2 GND RL 1.2 k
Fig. 4-1: Test circuit for EMC investigations
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5. Data Sheet History 1. Advance Information: "HAL2xy Hall-Effect Sensor Family", June 21, 2006, 6251-703-1AI. First release of the advance information. 2. Advance Information: "HAL2xy Hall-Effect Sensor Family", Jan. 17, 2007, AI000007_002EN. Second release of the advance information. Major changes: - Type HAL220 added 3. Data Sheet: "HAL2xy Hall-Effect Sensor Family", Aug. 24, 2007, DSH000141_001EN. First release of the data sheet. Major changes: - Section 3.1. Outline Dimensions updated - Section 3.2. Dimensions of Sensitive Area updated - Section 3.6. Characteristics updated - Section 3.7. Magnetic Characteristics Overview updated - Type HAL206 added - Type HAL207 added - Type HAL221 added 4. Data Sheet: "HAL 2xy Hall-Effect Sensor Family", June 11, 2008, DSH000141_002EN. Second release of the data sheet. Major changes: - Type HAL208 added - Type HAL210 added - Section 3.1. Outline Dimensions: drawing TO92UA-5 (spread leads) removed - Section 3.7. Magnetic Characteristics Overview: HAL 221 and values for hysteresis BHYS updated 5. Data Sheet: "HAL 2xy Hall-Effect Sensor Family", Jan. 11, 2010, DSH000141_003EN. Second release of the data sheet. Major changes: - Type HAL 211 added - Type HAL 212 added - Explanation on page 5 added: "Unipolar Switching Sensors with Inverted Output Sensitive to North Pole"
DATA SHEET
Micronas GmbH Hans-Bunte-Strasse 19 D-79108 Freiburg P.O. Box 840 D-79008 Freiburg, Germany Tel. +49-761-517-0 Fax +49-761-517-2174 E-mail: docservice@micronas.com Internet: www.micronas.com
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