February 2009 TLE4976-1K / TLE4976L High Precision Hall Effect Switch with Current Interface Data 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). 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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: [email protected] 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 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Target Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 3 3 2 2.1 2.2 2.3 2.4 2.5 2.6 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin Configuration (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Functional Block Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Timing Diagram and Output Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 4 4 5 5 6 3 3.1 3.2 3.3 3.4 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Application Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Electrical and Magnetic Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4 4.1 4.2 4.3 4.4 Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Distance between Chip and Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Data Sheet 2 12 12 14 15 15 Rev. 2.0, 2009-02-12 High Precision Hall Effect Switch with Current Interface 1 Product Description 1.1 Overview TLE4976-1K TLE4976L 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 Product Type TLE4976-1K Hall Effect Switch SC59 TLE4976L Hall Effect Switch PG-SSO-3-2 Data Sheet Ordering Code 3 Package Rev. 2.0, 2009-02-12 TLE4976-1K TLE4976L Functional Description 2 Functional Description 2.1 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 0.8 1 1.5 ± 0.15 2 ± 0.15 1 2 3 PG-SSO-3-2 SC59 Figure 1 Pin Configuration and Center of Sensitive Area 2.3 Pin Description Table 1 Pin Description for TLE4976-1K (SC59) Pin No. Symbol Function 1 VS Supply voltage 2 N.C. No internal connection 3 GND Ground Table 2 Comment Pin Description for TLE4976L (PG-SSO-3-2) Pin No. Symbol Function 1 VS Supply voltage 2 GND Ground 3 N.C. No internal connection Data Sheet ± 0.1 Comment 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 2.5 Functional Block Description Low Pass Filter Comparator with Hysteresis 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: Bop Applied Magnetic Field Brp td td tf IS tr 90% 10% Figure 3 Timing Diagram of TLE4976-1K IS ISHIGH ISLOW 0 Figure 4 Data Sheet Brp B op B Output Switching of TLE4976-1K 6 Rev. 2.0, 2009-02-12 TLE4976-1K TLE4976L Functional Description TLE4976L: B rp Applied Magnetic Field B op td IS td tf tr 90% 10% Figure 5 Timing Diagram of TLE4976L IS ISHIGH ISLOW 0 Figure 6 Data Sheet Bop Brp B Output Switching of TLE4976L 7 Rev. 2.0, 2009-02-12 TLE4976-1K TLE4976L Specification 3 Specification 3.1 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 = --------------------------------------------– RL 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 µC TLE 4976x GND VSIG Input RL µC GND Figure 7 Data Sheet Application Circuit 8 Rev. 2.0, 2009-02-12 TLE4976-1K TLE4976L Specification 3.2 Absolute Maximum Ratings Table 3 Absolute Maximum Rating Parameters Parameter Symbol Supply voltage VS Limit Values Unit Min. Max. – 18 – 18 – 18 18 24 26 V Note / Test Condition for 1h, RS+RL > 75Ω for 5min, RS+RL > 75Ω Supply current through protection device IS – 50 +50 mA Junction temperature Tj – – – – 155 165 175 195 °C Storage temperature TS – 40 150 °C Magnetic flux density B – unlimited mT for 2000h (not additive) for 1000h (not additive) for 168h (not additive) for 3 x 1h (additive) 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 ESD Protection1) Parameter Symbol Limit Values Min. ESD Voltage VESD Unit Note / Test Condition Max. ±8 HBM, R = 1.5kΩ, C = 100pF TA = 25°C 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 Operating Conditions Parameters Parameter Symbol Values Min. Supply voltage Junction temperature VS Tj Typ. Unit Max. 3 18 3 24 - 40 150 175 Data Sheet 9 Note / Test Condition V for 5 min, RS+RL > 100Ω for 168h 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. General Electrical Characteristics1) Table 6 Parameter Symbol Values Min. Typ. Max. Unit Note / Test Condition Supply current low ISLOW 5 6 7 mA B > BRP VS = 3V ... 18V Supply current high ISHiGH 12 14 17 mA B < BOP VS = 3V ... 18V Reverse current ISR – 0.2 mA VS = -18V Output fall time tf – 0.4 1.6 µs RS = 100Ω Output rise time tr – 0.4 1.6 µs Chopper frequency fOSC – 320 Switching freq. fSW Delay time 3) 4) Output jitter Power-on time5) 6) Thermal resistance – kHz 152) kHz td – 13 µs tQJ – 1 – µsRMS Typical value for square wave signal 1kHz tPON – 13 – µs VS ≥ 3.0V RthJA – 100 – K/W SC59 190 PG-SSO-3-2 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 Magnetic Characteristics1) Parameter Symbol Tj [°C] Values Min. Typ. Max. -40 ... 150 5.5 9.25 11.0 -40 25 150 4.1 4.0 3.8 6.1 6.0 5.8 -40 ... 150 5.0 7.25 10.5 -40 25 150 3.1 3.0 2.9 6.1 6.0 5.8 8.2 8.0 7.7 -40 ... 150 0.5 2.0 3.0 0.5 - 2.0 - 3.5 - Temperature compensation of TC magnetic thresholds - 0 - - -200 - Repeatability of magnetic thresholds2) - 40 - Operating point BOP Release point BRP Hysteresis BHYS -40 25 150 BREP 1.1 1.0 0.9 Unit Note / Test Condition mT TLE4976-1K TLE4976L mT TLE4976-1K TLE4976L mT TLE4976-1K TLE4976L 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 Data Sheet Definition of magnetic field direction 11 Rev. 2.0, 2009-02-12 TLE4976-1K TLE4976L Package Information 4 Package Information 4.1 Package Outline 1.1 ±0.1 3 ±0.1 0.1 0.2 2.8 +0.2 -0.1 3 1 0.45 ±0.15 0.1 M +0.1 1.6 +0.15 -0.3 3x0.4 +0.05 -0.1 0.15 MAX. 2 0.1 M 0.95 0.95 (0.55) +0.1 0.15 -0 .05 0˚...8˚ MAX. GPS09473 Figure 9 Data Sheet SC59 Package Outline (All dimensions in mm) 12 Rev. 2.0, 2009-02-12 TLE4976-1K TLE4976L Package Information 0.8 ±0.1 x 45˚ 7˚ 2 A 1.52 ±0.05 1 MAX.1) 7˚ 0.35 ±0.1 x 45˚ 3 ±0.06 0.2 3.29 ±0.08 4.06 ±0.08 1.9 MAX. (0.25) 0.15 MAX. 4.16 ±0.05 (0.79) 0.6 MAX. 0.2 +0.1 0.4 ±0.05 1.27±0.25 1 2 3 1.27±0.25 18 ±0.5 6 ±0.5 1-1 38 MAX. 9 +0.75 -0.5 23.8 ±0.5 12.7 ±1 A Adhesive Tape Tape 6.35 ±0.4 1) No solder function area Figure 10 Data Sheet 4 ±0.3 12.7 ±0.3 Total tolerance at 10 pitches ±1 0.25 -0.15 0.39 ±0.1 GPO05358 PG-SSO-3-2 Package Outline (All dimensions in mm) 13 Rev. 2.0, 2009-02-12 TLE4976-1K TLE4976L Package Information 4.2 Footprint 0.8 1.4 min 0.9 1.6 1.3 0.9 1.4 min 0.8 1.2 0.8 1.2 0.8 Wave Soldering Reflow Soldering Figure 11 Data Sheet Footprint SC59 14 Rev. 2.0, 2009-02-12 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 : Distance chip to upper side of IC PG-SSO-3-2 : 0.57 ±0.08 mm d = 0.56 ±0.1 mm AEA02510-1 Distance between chip and package: left: TLE4976-1K, right: TLE4976L 4.4 Package Marking 76L Year (y) = 0...9 Month (m) = 1...9, O - October N - November D - December yww 76 06 ym S Figure 12 Year (y) = 0...9 Calendar Week (ww) = 01...52 AEA03641 Figure 13 Data Sheet Marking of TLE4976-1K and TLE4976L 15 Rev. 2.0, 2009-02-12 www.infineon.com Published by Infineon Technologies AG