TLE4966-3K High Sensitivity Automotive Hall Switch with direction detection Datasheet Rev.1.0, 2010-09-20 Sense & Control Edition 2010-09-20 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. 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SIRIUS Satellite Radio® of SIRIUS Satellite Radio Inc. TOKO® of TOKO Inc. The information in this document is subject to change without notice. Last Trademarks Update 2008-11-17 Datasheet 3 Rev.1.0, 2010-09-20 TLE4966-3K Trademarks of Infineon Technologies AG . . . . . . . . . . . . . . . . . . . . . . 3 1 1.1 1.2 1.3 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin Configuration (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5 5 6 2 2.1 2.2 2.3 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Application Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 7 7 8 3 Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5 Electrical and Magnetic Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Field Direction Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6 Timing Diagrams for the Speed and Direction Output . . . . . . . . . . . . . 11 7 7.1 7.2 7.3 Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Distance between Chip and Package Surface . . . . . . . . . . . . . . . . . . . . . . Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PCB Footprint for PG-TSOP-6-6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . Datasheet 4 13 13 13 13 14 Rev.1.0, 2010-09-20 High Sensitivity Automotive Hall Switch with direction detection 1 Overview 1.1 Features • • • • • • • • • • • • • TLE4966-3K 2.7V to 24V 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 (-18V) Superior temperature stability Peak temperatures up to 195°C Low jitter (typ. 1μs) Digital output signals Excellent matching of the 2 Hall probes Hall plate distance 1.45mm Speed and direction output signal SMD package PG-TSOP-6-6-5 1.2 Functional Description The TLE4966-3K is an integrated circuit dual Hall-effect sensor designed specifically for highly accurate applications which use a rotating pole wheel. Precise magnetic switching points and high temperature stability are achieved by active compensation circuits and chopper techniques on chip. The sensor provides a speed output at Q2 with the status (high or low) corresponding to the magnetic field value. For positive magnetic fields (south pole) exceeding the threshold BOP the output is low, whereas for negative magnetic fields (north pole) lower than BRP the output switches to high. The output Q1 can be either high or low depending on the direction of rotation of the pole wheel. This direction information is calculated internally. Product Name Product Type Ordering Code Package TLE4966-3K Double Hall Switch SP000835522 PG-TSOP-6-6-5 Datasheet 5 Rev.1.0, 2010-09-20 TLE4966-3K Overview 1.3 Pin Configuration (top view) Center of Sensitive Area 1.45 6 0.8 ± 0.15 5 4 s 66 direction speed 1 Year (y) = 0...9 Month (m) = 1...9, O - October N - November D - December ym 0.73 ± 0.15 2 3 AEA03645 PG-TSOP6-6-5 Figure 1 Pin Definition and Center of Sensitive Area Table 1 Pin Definitions and Functions Pin No. Symbol Function 1 Q2 Speed 2 GND Recommended connection to GND 3 Q1 Direction 4 VDD Supply voltage 5 GND Recommended connection to GND 6 GND Ground Datasheet 6 Rev.1.0, 2010-09-20 TLE4966-3K General 2 General 2.1 Block Diagram V DD Voltage Regulator (reverse polarity protected) Oscillator & Sequencer ESD Bias and Compensation Circuits GND Q2 Chopped Hall Probe Chopped Hall Probe Figure 2 Block Diagram 2.2 Circuit Description Amplifier Amplifier Filter Comparator with Hysteresis Filter Q1 Direction Detection The chopped Dual Hall Switch comprises two Hall probes, bias generator, compensation circuits, oscillator, and output transistors. The bias generator provides currents for the Hall probes and the active circuits. Compensation circuits stabilize the temperature behavior and reduce influence of technology variations. The Active Error Compensation rejects offsets in signal stages and the influence of mechanical stress to the Hall probes caused by molding and soldering processes and other thermal stresses in the package. This chopper technique together with the threshold generator and the comparator ensures high accurate magnetic switching thresholds. Datasheet 7 Rev.1.0, 2010-09-20 TLE4966-3K Maximum Ratings 2.3 Application Circuit It is recommended to use a series resistor RS with 200Ω and a capacitor of CS = 4.7nF for protection against overvoltage and transients on the supply line. Pull-up resistors RL are required for the output pins Q1 and Q2. VS RS TLE4966-3K VDD CS RL RL Q1 Q2 GND Figure 3 Application Circuit 3 Maximum Ratings Table 2 Absolute Maximum Ratings Tj = -40°C to 150°C Parameter Symbol Limit Values Unit min. max. -18 -18 -18 18 24 26 V VS VS Supply current through protection device IDD -50 50 mA Output voltage VQ -0.7 -0.7 18 26 V Supply voltage VDD Conditions for 1 h, RS ≥ 200 Ω for 5 min, RS ≥ 200 Ω for 5 min @ RL = 1.2 kΩ (pull up resistor) Continuous output current IQ -50 50 mA Junction temperature Tj – – – – 155 165 175 195 °C Storage temperature TS -40 150 °C Magnetic flux density B – unlimited mT for 2000 h (not additive) for 1000 h (not additive) for 168 h (not additive) for 3 x 1 h (additive) Note: 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. Datasheet 8 Rev.1.0, 2010-09-20 TLE4966-3K Operating Range Table 3 ESD Protection 1) Parameter Symbol VESD ESD voltage Limit Values min. max. – ±4 Unit Notes kV HBM, R = 1.5 kΩ, C = 100 pF 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 4 Operating Range The following operating conditions must not be exceeded in order to ensure correct operation of the TLE4966-3K. All parameters specified in the following sections refer to theses operating conditions unless otherwise mentioned. Table 4 Operating Range Parameter Supply voltage Symbol VDD VS VS Output voltage Junction temperature Output current Datasheet VQ Tj IQ Limit Values Unit min. typ. max. 2.7 – – – – – 18 24 26 V -0.7 – 18 V -40 – – – 150 175 °C 0 – 10 mA Conditions 1 h with RS ≥ 200 Ω for 5 min RS ≥ 200 Ω for 168 h 9 Rev.1.0, 2010-09-20 TLE4966-3K Electrical and Magnetic Parameters 5 Electrical and Magnetic Parameters Product characteristics involve the spread of values guaranteed within the specified voltage and temperature range. Typical characteristics are the median of the production and correspond to VD = 12V and TA = 25°C. Table 5 Electrical Characteristics Parameter Symbol IDD Reverse current ISR Output saturation voltage VQSAT Output leakage current IQLEAK Output fall time tf Output rise time tr Chopper frequency fOSC Switching frequency fSW 3) Delay time td Count Signal Delay tdc Output jitter 4) tQJ Repeatability of magnetic BREP Supply current thresholds 1) Limit Values Distance of hall plates Thermal resistance 7) tPON dHALL RthJA Conditions min. typ. max. 4 5.2 7 mA 0 0.2 1 mA – 0.3 0.6 V – 0.05 10 μA – 0.2 1 μs VDD = 2.7 V ... 18 V VDD = -18 V IQ = 10 mA for VQ = 18 V RL = 1.2 kΩ; CL < 50 pF – 0.2 1 μs see: Figure 4 on Page 11 – 320 – kHz 2) 0 – 15 – 13 – μs 50 200 1000 ns – 1 – μsRMS Typ. value for square wave signal 1 kHz – 40 – μTRMS Typ. value for ΔB/Δt > 12 mT/ms – 13 – μs – 1.45 – mm – 100 – K/W 5) Power-on time 6) Unit kHz see: Figure 5 on Page 12 VDD ≥ 2.7 V PG-TSOP-6-6-5 1) over operating range, unless otherwise specified. Typical values correspond to VDD = 12 V and TA = 25°C 2) To operate the sensor at the max. switching frequency, the magnetic signal amplitude must be 1.4 times higher than for 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 switching 4) Jitter is the unpredictable deviation of the output switching delay 5) BREP is equivalent to the noise constant 6) Time from applying VDD ≥ 2.7 V to the sensor until the output state is valid 7) Thermal resistance from junction to ambient Calculation of the ambient temperature (PG-TSOP-6-6-5 example) e.g. for VDD = 12.0 V, IDDtyp = 5.5 mA, VQSATtyp = 0.3 V and 2 x IQ = 10 mA : Power Dissipation: PDIS = 72.0 mW. In TA = Tj – (RthJA × PDIS) = 175°C – (100 K / W × 0.072 W) Resulting max. ambient temperature: TA = 167.8°C Datasheet 10 Rev.1.0, 2010-09-20 TLE4966-3K Timing Diagrams for the Speed and Direction Output Table 6 Magnetic Characteristics 1). Parameter Symbol Operate point Release point Hysteresis Magnetic matching Temperature compensation of magnetic thresholds Limit Values Unit min. typ. max. BOP BRP BHYS BMATCH 0.8 2.5 4.2 mT -4.2 -2.5 -0.8 mT 3.7 5.0 6.3 mT 2.0 mT TC – – ppm/°C -2.0 -350 Conditions Valid for TA = 25°C BOP1 - BOP2 and BRP1 - BRP2 1) over operating range, unless otherwise specified. Typical values correspond to VDD = 12 V and TA = 25C Field Direction Definition Positive magnetic fields related with south pole of the magnet to the branded side of package. 6 Timing Diagrams for the Speed and Direction Output Applied Magnetic Field BOP BRP td VQ td tf tr 90% 10% Figure 4 Datasheet Timing Definition of the Speed Signal 11 Rev.1.0, 2010-09-20 TLE4966-3K Timing Diagrams for the Speed and Direction Output tdc tdc Speed Direction t Change of Direction Figure 5 Timing Definition of the direction signal N S N S N S Rotation Direction N S N S Branded Side of IC Figure 6 S N Definition of the direction signal Rotation direction State of direction output Q1 Left to right Low Right to Left High Datasheet 12 Rev.1.0, 2010-09-20 TLE4966-3K Package Information Package Information 7.1 Package Marking s Z3 Year (y) = 0...9 Month (m) = 1...9, o - October n - November d - December ym 7 Figure 7 Marking PG-TSOP-6-6-5 7.2 Distance between Chip and Package Surface d Branded Side 0.56 ± 0.1 mm Figure 8 Distance Chip to Upper Side of IC 7.3 Package Outlines 2.9 ±0.2 (2.25) B 1.1 MAX. (0.35) 1 2 3 +0.2 acc. to DIN 6784 0.35 +0.1 -0.05 0.2 M 0.15 +0.1 -0.06 B 6x 0.95 1.9 0.2 M 1.6 ±0.1 4 10˚ MAX. 5 10˚ MAX. 6 2.6 MAX. 0.1 MAX. A A GPX09300 Figure 9 Datasheet PG-TSOP-6-6-5 (Plastic Thin Small Outline Package) 13 Rev.1.0, 2010-09-20 TLE4966-3K Package Information PCB Footprint for PG-TSOP-6-6-5 The following picture shows a recommendation for the PCB layout. 2.9 1.9 0.5 0.95 Remark: Wave soldering possible dep. on customers process conditions HLG09283 Figure 10 Footprint PG-TSOP-6-6-5 You can find all of our packages, sorts of packing and others in our Infineon Internet Page “Products”: http://www.infineon.com/products. Datasheet 14 Dimensions in mm Rev.1.0, 2010-09-20 www.infineon.com Published by Infineon Technologies AG