TLE4976L

February 2009 TLE4976-1K / TLE4976L High Precision Hall Effect Switch with Current Interface D ata Sheet R e v. 2 . 0 Sense & Control Edition 2009-02-12 Published by Infineon Technologies AG 81726 Munich, Germany © 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. TLE4976-1K TLE4976L TLE4976-1K Revision History: 2009-02-12, Rev. 2.0 Previous Version: V1.1 “H” version substituted by “K” 6, 7 Timing and output switching diagram inserted 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 Data Sheet 1 Rev. 2.0, 2009-02-12 TLE4976-1K TLE4976L Table of Contents Table of Contents 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 4.3 4.4 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Target Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin Configuration (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Functional Block Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Timing Diagram and Output Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 3 3 4 4 4 4 5 5 6 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Application Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Electrical and Magnetic Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Distance between Chip and Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 12 14 15 15 Data Sheet 2 Rev. 2.0, 2009-02-12 High Precision Hall Effect Switch with Current Interface TLE4976-1K TLE4976L 1 1.1 Product Description Overview The TLE4976-1K and TLE4976L are high precision unipolar Hall switches with a two wire, 6mA/14mA current interface in a SMD or leaded package. A chopped measurement principle provides high stability switching thresholds for operating temperatures between -40°C and 150°C. 1.2 • • • • • • • • • • • • Features 3.0V to 24V supply voltage operation High sensitivity and high stability of the magnetic switching points High resistance to mechanical stress by Active Error Compensation Reverse battery protection (-18V) Superior temperature stability Peak temperatures up to 195°C without damage Low jitter (typ. 1µs) High ESD performance (± 8kV HBM) Digital output signal with current modulation 6mA / 14mA Unipolar version SMD package SC59 (SOT23 compatible): TLE4976-1K Leaded package PG-SSO-3-2: TLE4976L 1.3 Target Applications The sensor targets all applications where a high precision unipolar magnetic switch is required (e.g. position sensing). Due to the current interface the number of wires required in the application is minimized thus saving costs and increasing reliability. This is specially helpful in all applications where the microcontroller is not on the same PCB as the Hall switch but in some distance. Product Name TLE4976-1K TLE4976L Data Sheet Product Type Hall Effect Switch Hall Effect Switch 3 Ordering Code Package SC59 PG-SSO-3-2 Rev. 2.0, 2009-02-12 TLE4976-1K TLE4976L Functional Description 2 2.1 Functional Description General The TLE4976-1K and the TLE4976L are integrated circuit Hall-effect sensors designed specifically for highly accurate applications. Precise magnetic switching thresholds and high temperature stability are achieved by active error compensation circuits and chopper techniques on the chip. The IC has a current interface with a 6mA / 14mA output. 2.2 Pin Configuration (top view) 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 Center of Sensitive Area 2.3 Pin Description Table 1 Pin No. 1 2 3 Table 2 Pin No. 1 2 3 Pin Description for TLE4976-1K (SC59) Symbol VS N.C. GND Function Supply voltage No internal connection Ground Comment Pin Description for TLE4976L (PG-SSO-3-2) Symbol VS GND N.C. Function Supply voltage Ground No internal connection Comment Data Sheet 4 Rev. 2.0, 2009-02-12 TLE4976-1K TLE4976L Functional Description 2.4 Block Diagram VS Voltage Regulator reverse polarity protected Bias and Compensation Circuits Oscillator and Sequencer 8 mA Ref Amplifier Chopped Hall Probe Figure 2 Functional Block Diagram Low Pass Filter Comparator with Hysteresis 2.5 Functional Block Description The chopped Hall IC Switch comprises a Hall probe, bias generator, compensation circuits, oscillator and output transistor. The bias generator provides currents for the Hall probe and the active circuits. Compensation circuits stabilize the temperature behavior and reduce technology variations. The Active Error Compensation rejects offsets in signal stages and the influence of mechanical stress to the Hall probe caused by molding and soldering processes and other thermal stresses in the package. This chopper technique together with the threshold generator and the comparator ensure high accurate magnetic switching points. The current consumption depends on the switching status. Data Sheet 5 Rev. 2.0, 2009-02-12 TLE4976-1K TLE4976L Functional Description 2.6 Timing Diagram and Output Switching The output switching is different for theTLE4976-1K and TLE4976L. It is explained in the following section. TLE4976-1K: Applied Magnetic Field Bop Brp td IS 90% tf td tr 10% Figure 3 Timing Diagram of TLE4976-1K IS ISHIGH ISLOW 0 Figure 4 Output Switching of TLE4976-1K Brp B op B Data Sheet 6 Rev. 2.0, 2009-02-12 TLE4976-1K TLE4976L Functional Description TLE4976L: Applied Magnetic Field B rp B op td IS 90% tf td tr 10% Figure 5 Timing Diagram of TLE4976L IS ISHIGH ISLOW 0 Figure 6 Output Switching of TLE4976L Bop Brp B Data Sheet 7 Rev. 2.0, 2009-02-12 TLE4976-1K TLE4976L Specification 3 3.1 Specification Application Circuit The advantage of the current interface is, that only two wires are necessary to connect the sensor. At least one series resistor is required to convert the two output states of the Hall sensor from current consumption to a voltage information. A typical value for RL is 100Ω. This gives a typical signal voltage level VSIG = 0.8V in the Off state and 1.4V in the On state. If the sensor is operated in an application environment with disturbances on the supply line, an additional series resistor RS is recommended. The maximum value for the series resistor RS can be calculated using the following formula: V Supplymin – V Smin R Smax = --------------------------------------------- – R L I Shighmax VS_min is the minimal supply voltage which might occur due to disturbances on the supply line VS. Example: VSupplymin = 6V; VSmin = 3V; RL = 100Ω; IShighmax = 17mA : RSmax = 76.5Ω V Supply RS VS 4.7 nF TLE 4976x GND µC VSIG RL Input µC GND Figure 7 Application Circuit Data Sheet 8 Rev. 2.0, 2009-02-12 TLE4976-1K TLE4976L Specification 3.2 Absolute Maximum Ratings Table 3 Parameter Absolute Maximum Rating Parameters Symbol VS Limit Values Min. Max. 18 24 26 +50 155 165 175 195 150 V for 1h, RS+RL > 75Ω for 5min, RS+RL > 75Ω mA °C for 2000h (not additive) for 1000h (not additive) for 168h (not additive) for 3 x 1h (additive) – 18 – 18 – 18 – 50 – – – – – 40 – Unit Note / Test Condition Supply voltage Supply current through protection device Junction temperature IS Tj Storage temperature Magnetic flux density TS B °C unlimited mT Attention: Stresses above the max. values listed here may cause permanent damage to the device. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Maximum ratings are absolute ratings; exceeding only one of these values may cause irreversible damage to the integrated circuit. Table 4 Parameter ESD Voltage ESD Protection1) Symbol VESD ±8 Limit Values Min. Max. HBM, R = 1.5kΩ, C = 100pF TA = 25°C Unit Note / Test Condition 1) Human Body Model (HBM) tests according to: EOS/ESD Association Standard S5.1-1993 and Mil. Std. 883D method 3015.7 3.3 Operating Range The following operating conditions must not be exceeded in order to ensure correct operation of the Hall Effect Switch. All parameters specified in the following sections refer to these operating conditions unless otherwise mentioned. Table 5 Parameter Supply voltage Junction temperature Operating Conditions Parameters Symbol Min. VS Tj 3 3 - 40 Values Typ. Max. 18 24 150 175 for 168h V for 5 min, RS+RL > 100Ω Unit Note / Test Condition Data Sheet 9 Rev. 2.0, 2009-02-12 TLE4976-1K TLE4976L Specification 3.4 Electrical and Magnetic Characteristics Product characteristics involve the spread of values guaranteed within the specified voltage and ambient temperature range. Typical characteristics are the median of the production. Table 6 Parameter Supply current low Supply current high Reverse current Output fall time Output rise time Chopper frequency Switching freq. Delay time 3) 4) General Electrical Characteristics1) Symbol Min. ISLOW ISHiGH ISR tf tr fOSC fSW td tQJ tPON 6) Values Typ. 6 14 – – – – – – – – 0.4 0.4 320 – 13 1 13 100 – – – 190 152) Max. 7 17 0.2 1.6 1.6 5 12 Unit mA mA mA µs µs kHz kHz µs Note / Test Condition B > BRP VS = 3V ... 18V B < BOP VS = 3V ... 18V VS = -18V RS = 100Ω Output jitter µsRMS Typical value for square wave signal 1kHz µs K/W VS ≥ 3.0V SC59 PG-SSO-3-2 Power-on time5) Thermal resistance RthJA 1) over operating range, unless otherwise specified. Typical values correspond to VS = 12V and TA = 25°C 2) To operate the sensor at the max. switching frequency, the value of the magnetic signal amplitude must be 1.4 times higher than for static fields. This is due to the - 3dB corner frequency of the low pass filter in the signal path 3) Systematic delay between magnetic threshold reached and output switching 4) Jitter is the unpredictable deviation of the output switching delay 5) Time from applying VS ≥ 3.0V to the sensor until the output state is valid 6) Thermal resistance from junction to ambient Calculation of the ambient temperature: e.g. for VS = 12.0V, RS = 100W, ISHIGHtyp = 14mA : Power Dissipation: PDIS = 148.4mW. In TA = Tj – (RthJA x PDIS) = 175°C – (100K/W x 0.15W) Resulting max. ambient temperature: TA = 160°C Data Sheet 10 Rev. 2.0, 2009-02-12 TLE4976-1K TLE4976L Specification Table 7 Parameter Magnetic Characteristics1) Symbol Tj [°C] Min. BOP -40 ... 150 5.5 -40 25 150 1.1 1.0 0.9 3.1 3.0 2.9 0.5 - Values Typ. 9.25 4.1 4.0 3.8 7.25 6.1 6.0 5.8 2.0 2.0 0 -200 40 Max. 11.0 6.1 6.0 5.8 10.5 8.2 8.0 7.7 3.0 3.5 - Unit mT Note / Test Condition TLE4976-1K TLE4976L Operating point Release point BRP -40 ... 150 5.0 -40 25 150 mT TLE4976-1K TLE4976L Hysteresis BHYS -40 ... 150 0.5 -40 25 150 mT TLE4976-1K TLE4976L Temperature compensation of TC magnetic thresholds Repeatability of magnetic thresholds2) BREP ppm/°C TLE4976-1K TLE4976L mT Typ. value for ∆B / ∆t > 12 mT/ms 1) over operating range, unless otherwise specified. Typical values correspond to VS = 12 V. 2) BREP is equivalent to the noise constant Field Direction Definition Positive magnetic fields are defined with the south pole of the magnet to the branded side of package. N S Branded Side Figure 8 Definition of magnetic field direction Data Sheet 11 Rev. 2.0, 2009-02-12 TLE4976-1K TLE4976L Package Information 4 4.1 Package Information Package Outline 1.1 ±0.1 3 ±0.1 3 x0.4 +0.05 -0.1 3 2.8 +0.2 -0.1 0.1 0.1 M 0.45 ±0.15 0.15 MAX. 0.2 +0.1 1 0.95 2 0.95 (0.55) 0.1 M +0.1 0.15 -0.05 0˚...8˚ MAX. GPS09473 Figure 9 SC59 Package Outline (All dimensions in mm) Data Sheet 12 Rev. 2.0, 2009-02-12 1.6 +0.15 -0.3 TLE4976-1K TLE4976L 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 10 PG-SSO-3-2 Package Outline (All dimensions in mm) Data Sheet 13 Rev. 2.0, 2009-02-12 1-1 Adhesive Tape Tape TLE4976-1K TLE4976L Package Information 4.2 Footprint 0.8 0.9 0.8 1.4 min 1.2 0.8 Wave Soldering 14 1.3 0.9 1.2 0.8 Reflow Soldering Figure 11 Footprint SC59 Data Sheet 1.4 min Rev. 2.0, 2009-02-12 1.6 TLE4976-1K TLE4976L Package Information 4.3 Distance between Chip and Package Branded Side d d Branded Side Hall-Probe d: Distance chip to upper side of IC d = 0.56 ±0.1 mm Figure 12 d : Distance chip to upper side of IC PG-SSO-3-2 : 0.57 ±0.08 mm AEA02510-1 Distance between chip and package: left: TLE4976-1K, right: TLE4976L 4.4 Package Marking S 76 06 Year (y) = 0...9 Month (m) = 1...9, O - October N - November D - December AEA03641 Figure 13 Marking of TLE4976-1K and TLE4976L Data Sheet ym 15 76L yww Year (y) = 0...9 Calendar Week (ww) = 01...52 Rev. 2.0, 2009-02-12 www.infineon.com Published by Infineon Technologies AG