tle4982c Infineon Technologies Corporation, tle4982c Datasheet
tle4982c
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tle4982c Summary of contents
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... Type TLE4982C General information: The TLE4982C is an active Hall sensor ideally suited for camshaft applications. Its basic function is to map either a tooth or a notch into a unique electrical output state. It has an electrical trimming option for post-fabrication trimming in order to achieve true power on capability even in the case of production spreads such as different magnetic configurations or misalignment ...
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... Functional description: The basic operation of the TLE4982C is to map a „high positive“ magnetic field (tooth) into a “low” electrical output signal and to map a „low positive“ magnetic field (notch) into a “high” electrical output. Optionally the other output polarity can be chosen by programming the PROM ...
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Initial mode: The magnetic information is derived from a chopped Hall amplifier. The threshold information comes from a PROM-register that may be programmed at any time, but only once (no EEPROM). The magnetic information is compared against the threshold and ...
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Calibrated mode: After a certain number of switching events (64) the accuracy is considered to be quite high. At this time the chip is switched into an averaging mode (= calibrated mode) where only minor threshold corrections are allowed. In ...
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Long reset: This reset means a total reset of the analogue as well as for the digital part of the IC. The output is forced to its default state (“high”). This condition remains for less than 1ms. After this time ...
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Hysteresis concept: There are two different hysteresis concepts implemented in the IC. The first one is called visible hysteresis, meaning that the output switching levels are changed between two distinct values (depending on the direction of the magnetic field during ...
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B B hys Q Fig. 1: Visible hysteresis (Initial mode, unprogrammed IC) Page TPO B off ...
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hys Q Fig. 2: Hidden hysteresis (precalibrated and calibrated mode) Page cal B off t t ...
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Block diagram: The block diagram is shown in fig.3. The IC consists of a spinning Hall probe (monocell in the centre of the chip) with a chopped preamplifier. Next there is a summing node for threshold level adjustment. The threshold ...
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Any disturbance in this sequence will terminate the initialisation procedure. After having successfully finished the initialisation the chip enters the testmode and data transmission can be started. Data transmission: Serial transmission is done in words ...
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... It has to be noted that the chip has increased power dissipation during programming for blowing the fuses. The additional power is taken out of the output. Please ask your local support for detailed instruction how to program TLE4982C. Overvoltage protection: The process used for production has a breakthrough voltage of approximately 27.5V. ...
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... Hall probe chopper + & filter - offset DAC actual switching level bias for temperature & technology compensation Fig.3: Blockdiagram of TLE4982C hyst comp main enable comp Tracking ADC oscillator GND Page OUT overtemperature clamping & short-circuit protection n-channel ...
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B Maximum value ( cal Fig. 4: Dynamic threshold value 1 1 Input LSB data (VS) Output data (Q) LSB undefined 0 Fig Serial protocol ) max Switching value (B (THRESHOLD) calibration True power on ...
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... Note: Stresses above those listed here may cause permanent damage to the device. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ESD Protection Parameter ESD – protection TLE4982C 1 Accumulated life time min typ max Unit ...
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Operating range: Symbol Name V Operating supply S voltage T operating junction j temperature T trimming temperature cal I continuous output ON Q current V continuous output OFF Q voltage f magnetic signal B switching frequency t rise time of ...
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AC/DC characteristics: Symbol Name V output saturation voltage Qsat I output leakage current Qleak I current limit for short circuit protection 30 Qshort T junction temperature limit for output prot protection 1 t output rise time rise 2 t output ...
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Symbol Name f clock frequency for digital part clk f clock frequency used by the chopper chopper preamplifier ∆k resolution of switching level 0 adjustment FSR full scale range of the offset-DAC ODAC FSR full scale range of the offset-DAC ...
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... Application circuit: for example: R ≥200Ω @ Vs=12V for example ≥50Ω @ Vs= =1,2kΩ L Figure 6 Application Circuits TLE4982C Remark: Two 4.7nF capacitors integrated inside PG-SSO-3-9 package =1,2kΩ =120Ω Page ...
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Electro Magnetic Compatibility - (values depend on R Ref. ISO 7637-1; see test circuit of figure 7; ∆B = 10mT (ideal sinusoidal signal Parameter Testpulse 1 Testpulse 2 Testpulse 3a Testpulse 3b Testpulse 4 Testpulse 5 Note: Test ...
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R Series 200Ω C Int-package V EMC Figure 7: Testcircuit for EMC-tests Remark: 4.7nF capacitors inside package (PG-SSO-3-9 GND C Int-package Page kΩ Load C Load 4 ...
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Package Dimensions PG-SSO 3-9 (Plastic Green Single Small Outline) Page ...
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Position of the Hall Element PG-SSO-3-9 and distance from branded side for 3-9 Page ...
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Tape Loading Orientation PG-SSO-3-9 Pin Definitions and Function PG-SSO-3-9 Pin Symbol GND 3 Q Function Supply Voltage Ground Open Drain Input Page ...
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Calculation of mechanical errors: ϕ ∆ϕ ∆ϕ ϕ Systematic Phase Error The systematic error comes in because of the delay-time between the threshold point and the time when the output is switching. It can be calculated as follows: ϕ ... ...
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Stochastic Phase Error The stochastic phase error includes the error due to the variation of the delay time with temperature and the error caused by the resolution of the threshold. It can be calculated in the following way: ∆ϕ ...
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Jitter_typ ϕ Jitter_max ϕ ∂ ∂ neff_typ B n_max Example: -1 Assumption 3000 min µs d ∆t = ±3 µs d ∂B 1 mT/° = ϕ ∂ ∆B = ±0.2 mT (=2% ...
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... As mentioned in information note N° 136/03 a data matrix code with 8x18 fields according to the ECC200 standard may be used for TLE4982C. Furthermore the marking technique on the front side of the device may be changed from a mask to a writing laser equipment ...
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Revision History: Previous Version: 3.0 Page Subjects (major changes since last revision) - Version TLE4982 in PG-SSO-3-6 package (without 4.7nF capacitors) discontinued Infineon Technologies AG © Infineon Technologies AI SC All Rights Reserved. http://www.infineon.com/products/sensors Any information within this document that ...