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May 2009
TLI4906
High Precision Hall Effect Switches for Industrial and Consumer Applications
TLI4906K, TLI4906L
Datasheet
R e v. 1 . 0
Sense and Control
Edition 2009-05-04 Published by Infineon Technologies AG 81726 Munich, Germany (c) 2009 Infineon Technologies AG All Rights Reserved. Legal Disclaimer The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights of any third party. Information For further information on technology, delivery terms and conditions and prices, please contact the nearest Infineon Technologies Office (www.infineon.com). Warnings Due to technical requirements, components may contain dangerous substances. For information on the types in question, please contact the nearest Infineon Technologies Office. Infineon Technologies components may be used in life-support devices or systems only with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered.
TLI4906
High Precision Hall Effect Switches for Industrial and Consumer Applications
Revision History: 2009-05-04, Rev. 1.0 Previous Revisions: none Page Subjects (major changes since last revision)
We Listen to Your Comments Any information within this document that you feel is wrong, unclear or missing at all? Your feedback will help us to continuously improve the quality of this document. Please send your proposal (including a reference to this document) to: sensors@infineon.com
Datasheet
3
Rev. 1.0, 2009-05-04
TLI4906
Table of Contents
Table of Contents
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 List of Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1 1.1 1.2 1.3 2 2.1 2.2 2.3 2.4 2.5 2.6 3 3.1 3.2 3.3 3.4 4 4.1 4.2 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Target Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 7 7 7
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Operating Modes and States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Functional Block Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 11 11 12 12
Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 TLI4906K Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 TLI4906L Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Datasheet
4
Rev. 1.0, 2009-05-04
TLI4906
List of Figures
List of Figures
Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Pin Configuration and sensitive area (Top view, figure not to scale) . . . . . . . . . . . . . . . . . . . . . . . . 8 TLI4906x Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Definition of the Magnetic Field direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Output Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Marking of the TLI4906K and distance of the chip to the upper side . . . . . . . . . . . . . . . . . . . . . . . 14 PG-SC59-3-4 Package Outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Footprint PG-SC59-3-4 (SOT23 compatible) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Marking of the TLI4906L and distance of the chip to the upper side . . . . . . . . . . . . . . . . . . . . . . . 15 PG-SSO-3-2 Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Datasheet
5
Rev. 1.0, 2009-05-04
TLI4906
List of Tables
List of Tables
Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 PIN Definitions for the PG-SC59-3-4 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 PIN Definitions for the PG-SSO-3-2 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Magnetic Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Datasheet
6
Rev. 1.0, 2009-05-04
High Precision Hall Effect Switch
TLI4906
1
1.1
Product Description
Overview
The TLI4906x is a high precision Hall Effect Switch with highly accurate switching thresholds for ambient operating temperatures up to 125C. The TLI4906K is available in a PG-SC59-3-4 package, the TLI4906L in a PG-SSO-3-2 package.
1.2
* * * * * * * * * *
Features
2.7 V to 18 V supply voltage operation. Operation from unregulated power supply. High sensitivity and high stability of the magnetic switching points. High resistance to mechanical stress by active error compensation. Reverse battery protection (-18 V). Superior temperature stability. Low jitter (typically 1 s). High ESD performance ( 4 kV HBM). Digital output signal (open-drain). Not suitable for automotive applications
1.3
Target Applications
The TLI4906x is ideally suited for all industrial and consumer applications that require a high precision switching thresholds for position sensing. It can be used for example for: security systems, alignment control, push buttons, keyboards, key switches, machine tools, etc.
Product Name Hall Effect Switch Hall Effect Switch Datasheet
Product Type TLI4906K TLI4906L 7
Ordering Code SP000604306 SP000604320
Package PG-SC59-3-4 PG-SSO-3-2 Rev. 1.0, 2009-05-04
TLI4906
Functional Description
2
2.1
Functional Description
General
Precise magnetic switching thresholds and high temperature stability are achieved by active compensation circuits and chopper techniques on chip. Offset voltages generated by temperature-induced stress or overmolding are canceled so that high accuracy is achieved. The IC has an open collector output stage with 20 mA current sink capability. A wide operating voltage range from 2.7 V to 18 V with reverse polarity protection down to -18 V makes the TLI4906xsuitable for a wide range of applications. A magnetic south pole with a field strength above Bop turns the output on. A magnetic north pole exceeding Brp turns it off.
2.2
Pin Configuration
Center of Sensitive Area
2.08 0.1
3
1.35
0.1
0.8
0.15
1
1.5
0.15
2 123 PG-SSO-3-2
SC59
Figure 1
Pin Configuration and sensitive area (Top view, figure not to scale)
Datasheet
8
Rev. 1.0, 2009-05-04
TLI4906
Functional Description
2.3
Pin Description
Table 1 PIN No. 1 2 3 Table 2 PIN No. 1 2 3
PIN Definitions for the PG-SC59-3-4 package Name Vs Q GND Function Supply Voltage Output Ground
PIN Definitions for the PG-SSO-3-2 package Name Vs GND Q Function Supply Voltage Ground Output
2.4
Block Diagram
VS
Voltage Regulator reverse polarity protected
Bias and Compensation Circuits
Oscillator and Sequencer
Ref
Q
Amplifier Chopped Hall Probe
Low Pass Filter
Comparator with Hysteresis
GND
Figure 2
TLI4906x Block Diagram
Datasheet
9
Rev. 1.0, 2009-05-04
TLI4906
Functional Description
2.5
Operating Modes and States
Field Direction and Definition Positive magnetic fields correspond to the south pole of the magnet targeting the branded side of the package.
N S Branded Side
N S Branded Side
Figure 3
Definition of the Magnetic Field direction
VQ
B 0 Brp Bop
Figure 4
Output Signal
2.6
Functional Block Description
The chopped Hall Effect Switch comprises a Hall probe, a bias generator, compensation circuits, an oscillator and an output transistor. The bias generator provides currents to the Hall probe and the active circuits. Compensation circuits stabilize response of the IC over temperature and reduce the impact of process variations. The Active Error Compensation rejects offsets in the signal path and reduces the impact of mechanical stress in the package caused by molding, soldering and thermal effects. The chopper technique together with the threshold generator and the comparator ensure high accurate magnetic switching points.
Datasheet
10
Rev. 1.0, 2009-05-04
TLI4906
Specification
3
3.1
Specification
Application circuit
Q
Q 4.7nF GND 200 1.2k
TLI4906X
GND VS 4.7nF
VS
Figure 5
Application circuit
It is recommended to use a resistor of 200 in the supply line for current limitation in the case of an overvoltage pulse. Two capacitors of 4.7 nF enhance the EMC performance. The pull-up of 1.2 k limits the current through the output transistor.
3.2
Absolute Maximum Ratings
Stress above the maximum values listed in this section may cause permanent damage to the device. Exposure to absolute maximum rating conditions for extended periods may affect the reliability of the device. Exceeding only one of these values may cause irreversible damage to the device. Table 3 Parameter Maximum Ambient Temperature Maximum Junction Temperature Supply Voltage Absolute Maximum Ratings Symbol Min. Values Typ. - - - - - - - - Max. 125 150 18 50 18 150 unlimited 4 C C V mA V C mT kV - 40 - 40 - 18 -50 - 0.7 - 40 - - Unit Note / Test Condition
TA TJ VS
Supply current through protection IS device Output Voltage Storage Temperature Magnetic flux density ESD Robustness HBM: 1.5 k, 100 pF
1) According to EIA/JESD22-A114-E
VOUT TS B VESD,HBM1)
Datasheet
11
Rev. 1.0, 2009-05-04
TLI4906
Specification
3.3
Operating Range
The following operating conditions must not be exceeded in order to ensure correct operation of the TLI4906x. All parameters specified in the following sections refer to these operating conditions unless otherwise mentioned. Table 4 Parameter Supply Voltage Output Voltage Output Current Maximum Ambient Temperature Operating Range Symbol Min. Values Typ. - - - - Max. 18 18 20 125 V V mA C 2.7 -0.7 0 -40 Unit Note / Test Condition
VS VQ IQ TA
3.4
Electrical Characteristics
Product characteristics include the spread of values guaranteed within the specified voltage and ambient temperature range. typical characteristics are the median of the production (at Vs=12V and TA=25C). Table 5 Parameter Supply Current Reverse Current Output Saturation Voltage Output leakage current Output fall time
1) 1)
Electrical Characteristics Symbol Min. Values Typ. 4 0.2 0.3 0.05 0.02 0.4 320 - 13 1 13 100 Max. 6 1 0.6 10 1 1 - 15 - - - - 190
2)
Unit mA mA V A s s kHz kHz s sRMS s K/W K/W
Note / Test Condition VS=2.7 V...18 V VS=-18 V IQ=20 mA VQ=18 V RL=1.2k , CL=50 pF
IS ISR VQSAT IQLEAK tf tr fOSC fSW td tQJ tPON Rthja
2 0 - - - - - 0 - - - - -
Output rise time
Chopper frequency Switching frequency Delay time
3) 4)
Output jitter
Typical value for a 1 kHz square wave signal VS > 2.7 V TLI4906K TLI4906L
Power-on Time5) Thermal Resistance junction to ambient6)
1) See Figure 6 2) To operate the sensor at maximum switching frequency, the value of the magnetic signal amplitude must be 1.4 times higher than the static fields. This is due to the -3 dB corner frequency of the low pass filter in the signal path. 3) Systematic delay between magnetic threshold reached and output. 4) Jitter is the unpredictable deviation of the output switching delay. 5) Time from applying VS. > 2.7 V to the sensor until the output state is valid.
6)Relationship between junction and ambient temperature: TJ=Tamb + Rthja . (VS . IS + VQS . IQ).
Datasheet
12
Rev. 1.0, 2009-05-04
TLI4906
Specification
B OP B RP
Applied Magnetic Field
td VQ 90% tf
td tr
10%
Figure 6 Table 6 Parameter
Timing Diagram Magnetic Characteristics 1) Symbol Min. Values Typ. 10.0 8.5 1.5 -350 20 Max. 13.9 12.3 3.0 - - mT mT mT ppm/C TRMS typical value for /t > 12mT/ms
2)
Unit
Note / Test Condition
Operate point Release point Hysteresis
Temperature compensation of magnetic thresholds
BOP BRP BHYS TC BREP
6.2 4.7 0.7 - -
Repeatability of magnetic thresholds3)
1) Over all operating conditions. 2) At 25C. 3) BREP is equivalent to the noise constant.
Datasheet
13
Rev. 1.0, 2009-05-04
TLI4906
Package Information
4
4.1
Package Information
TLI4906K Package Outline
Branded Side
I06
Figure 7
Year (y) = 0...9 Month (m) = 1...9, O - October N - November D - December
ym
d: Distance chip to upper side of IC: d = 0.56 0.1 mm
AEA03244
Marking of the TLI4906K and distance of the chip to the upper side
1.1 0.1 3 0.1 3x0.4
+0.05 -0.1
0.1 0.1 M
0.15 MAX. 0.2
+0.1
0.45 0.15
1 0.95
2 0.95 (0.55)
0.1 M
+0.1 0.15 -0.05
0...8 MAX.
GPS09473
Figure 8
PG-SC59-3-4 Package Outline
Datasheet
14
1.6 +0.15 -0.3
Rev. 1.0, 2009-05-04
3
2.8 +0.2 -0.1
d
TLI4906
Package Information
0.8 0.9
0.8 1.4 min 1.2 0.8 Wave Soldering
1.3
0.9
1.2 0.8
Reflow Soldering
Figure 9
Footprint PG-SC59-3-4 (SOT23 compatible)
4.2
TLI4906L Package Outline
yww S
Figure 10
Marking of the TLI4906L and distance of the chip to the upper side
Datasheet
I06
Year (y) = 0...9 Calendar Week (ww) = 01...52
15
1.4 min
1.6
Rev. 1.0, 2009-05-04
TLI4906
Package Information
0.8 0.1 x 45
7 4.16 0.05
0.15 MAX.
3.29 0.08
3 0.06
4.06 0.08 1.9 MAX.
0.2 2A 1.52 0.05
0.35 0.1 x 45
(0.25)
1 MAX.1)
0.6 MAX. 0.4 0.05
(0.79) 0.2 +0.1
1.270.25
1
2
3
1.270.25 12.7 1
23.8 0.5
38 MAX.
7
9 +0.75 -0.5
18 0.5
6 0.5
A
6.35 0.4 12.7 0.3 Total tolerance at 10 pitches 1
4 0.3
0.25 -0.15 0.39 0.1
GPO05358
1) No solder function area
Figure 11
PG-SSO-3-2 Package Outline
Datasheet
16
Rev. 1.0, 2009-05-04
1-1
Adhesive Tape Tape
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