TLV4906L

T LV4906L Value Optimized Hall Effect Switch for Industrial and Consumer Applications Datasheet Rev. 1.1, 2010-08-02 Sense and Control Edition 2010-08-02 Published by Infineon Technologies AG 81726 Munich, Germany © 2010 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. TLV4906L Value Optimized Hall Effect Switch for Industrial and Consumer Applications Revision History: 2010-08-02, Rev. 1.1 Previous Revisions: 1.0 Page all Subjects (major changes since last revision) TLV4906K removed 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. 1.1, 2010-08-02 TLV4906L 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 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 TLV4906L Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Datasheet 4 Rev. 1.1, 2010-08-02 TLV4906L List of Figures List of Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Pin Configuration and sensitive area (Top view, figure not to scale) . . . . . . . . . . . . . . . . . . . . . . . . 8 TLV4906L Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Definition of the Magnetic Field direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Output Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Marking of the TLV4906L and distance of the chip to the upper side. . . . . . . . . . . . . . . . . . . . . . . 14 PG-SSO-3-2 Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Datasheet 5 Rev. 1.1, 2010-08-02 TLV4906L List of Tables List of Tables Table 1 Table 2 Table 3 Table 4 Table 5 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. 1.1, 2010-08-02 Hall Effect Switch TLV4906L 1 1.1 Product Description Overview The TLV4906L is a high precision Hall Effect Switch with highly accurate switching thresholds for ambient operating temperatures up to 85°C. 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 µs). High ESD performance (± 4 kV HBM). Digital output signal (open-drain). Not suitable for automotive applications 1.3 Target Applications The TLV4906L 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 TLV4906L Datasheet Product Type Hall Effect Switch 7 Order Code SP000604324 Package PG-SSO-3-2 Rev. 1.1, 2010-08-02 TLV4906L 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 TLV4906L suitable for a wide range of applications. A magnetic south pole with a field strength above Bop turns the output transistor on (output voltage low) and for a magnetic field below Brp the output transistor is switched off (output voltage high). 2.2 Pin Configuration Center of Sensitive Area 2.08 ± 0.1 1.35 ± 0.1 123 PG-SSO-3-2 Figure 1 Pin Configuration and sensitive area (Top view, figure not to scale) Datasheet 8 Rev. 1.1, 2010-08-02 TLV4906L Functional Description 2.3 Table 1 PIN No. 1 2 3 Pin Description 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 TLV4906L Block Diagram Datasheet 9 Rev. 1.1, 2010-08-02 TLV4906L 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 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. 1.1, 2010-08-02 TLV4906L Specification 3 3.1 Specification Application circuit Q Q 4.7nF GND 200Ω 1.2kΩ TLV4906X GND VS 4.7nF VS Figure 5 Application circuit It is recommended to use a resistor of 200 Ω 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 kΩ 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 2 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 kΩ, 100 pF 1) According to EIA/JESD22-A114-E VOUT TS B VESD,HBM1) Datasheet 11 Rev. 1.1, 2010-08-02 TLV4906L Specification 3.3 Operating Range The following operating conditions must not be exceeded in order to ensure correct operation of the TLV4906L. All parameters specified in the following sections refer to these operating conditions unless otherwise mentioned. Table 3 Parameter Supply Voltage Output Voltage Output Current Maximum Ambient Temperature Operating Range Symbol Min. Values Typ. – – – – Max. 18 18 20 85 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=25°C). Table 4 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 – Max. 6 1 0.6 10 1 1 – 15 – – – 190 2) Unit mA mA V µA µs µs kHz kHz µs µsRMS µs K/W Note / Test Condition VS=2.7 V...18 V VS=-18 V IQ=20 mA VQ=18 V RL=1.2k Ω, 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 TLV4906L 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. 1.1, 2010-08-02 TLV4906L Specification B OP B RP Applied Magnetic Field td VQ 90% tf td tr 10% Figure 6 Table 5 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 µTRMS typical value for ΔΒ/Δt > 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 25°C. 3) BREP is equivalent to the noise constant. Datasheet 13 Rev. 1.1, 2010-08-02 TLV4906L Package Information 4 4.1 Package Information TLV4906L Package Outline ywwS VB1 Year (y) = 0...9 Calendar Week (ww) = 01...52 Figure 7 Marking of the TLV4906L and distance of the chip to the upper side Datasheet 14 Rev. 1.1, 2010-08-02 TLV4906L 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 1.27±0.25 1 2 3 1.27±0.25 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 8 PG-SSO-3-2 Package Outline Datasheet 15 Rev. 1.1, 2010-08-02 1-1 Adhesive Tape Tape www.infineon.com Published by Infineon Technologies AG