AS5134-ASSU austriamicrosystems, AS5134-ASSU Datasheet
AS5134-ASSU
Specifications of AS5134-ASSU
Related parts for AS5134-ASSU
AS5134-ASSU Summary of contents
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... Wide magnetic field input range: 20 – Wide temperature range: -40ºC to +140ºC Fully automotive qualified to AEC-Q100 Small Pb-free package: SSOP 20 3 Applications The AS5134 is suitable for contactless rotary position sensing, rotary switches (human machine interface), AC/DC motor position control and Brushless DC motor position control ...
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... Multi Turn Counter.............................................................................................................................................. High Speed Operation ........................................................................................................................................ Propagation Delay.......................................................................................................................................... 24 ADC Sampling Rate ....................................................................................................................................... 24 Chip Internal Lowpass Filtering ...................................................................................................................... 24 Digital Readout Rate ...................................................................................................................................... 24 Total Propagation Delay of the AS5134 ......................................................................................................... 24 Low Power Mode ........................................................................................................................................... 25 Magnet Diameter and Vertical Distance ............................................................................................................. The Linear Range .......................................................................................................................................... 26 Magnet Thickness .......................................................................................................................................... 28 Axial Distance (Airgap)................................................................................................................................... 29 Angle Error vs. Radial and Axial Misalignment .............................................................................................. 29 Accuracy ...
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... AS5134 Data Sheet - Package Drawings and Markings ....................................................................................................... Recommended PCB Footprint ........................................................................................................................... 10 Ordering Information......................................................................................................................... www.austriamicrosystems.com Revision 1 ...
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... AS5134 Data Sheet - Pin Assignments Figure 2. Pin Assignments (Top View) Prog VSS PWM VDD TestCoil DCLK DIO Pin Descriptions Table 1. Pin Descriptions Pin Name Pin Number Prog 1 VSS PWM 6 VDD 7 Test Coil 8 DDCLK 9 DIO Index 16 TB0 17 TB1 18 TB2 19 TB3 20 www.austriamicrosystems.com 1 20 ...
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... AS5134 Data Sheet - Absolute Maximum Ratings Stresses beyond those listed in Table 2 and functional operation of the device at these or any other conditions beyond those indicated in Characteristics on page 6 is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Table 2. Absolute Maximum Ratings ...
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... AS5134 Data Sheet - Electrical Characteristics T = -40 to 140ºC, VDD5V = 4.5-5.5V, all voltages referenced to V AMB Table 3. Electrical Characteristics Symbol Parameter V Positive Supply Voltage DD Operating Current Power down current off T Junction Temperature J System Parameters Resolution N T Power Up Time PwrUp t Tracking rate s INL ...
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... AS5134 Data Sheet - Table 3. Electrical Characteristics (Continued) Symbol Parameter Programming ambient Tamb PROG temperature t Programming time PROG V R,prog Analog readback voltage V R,unprog Hall Element Sensitivity Options Hall Element sensitivity setting sens DC Characteristics of Digital Inputs and Outputs High level input voltage V IH ...
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... AS5134 Data Sheet - Timing Characteristics Table 4. Timing Characteristics Symbol Parameter 2-/3-Wire Data Transmission f Clock Frequency DCLK f Clock Frequency DCLK,P f Clock Frequency DCLK f Clock Frequency DCLK,P General Data Transmission t0 Rising DCLK to CS Chip select to positive edge of t1 DCLK t2 Chip select to drive bus externally ...
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... Data Sheet - Detailed Description Figure 3. Typical Arrangement of AS5134 and Magnet Connecting the AS5134 The AS5134 can be connected to an external controller in several ways as listed below: Serial 3-wire R/W connection Serial 3-wire Read-only connection Serial 2-Wire connection (R/W Mode) Serial 2-Wire Differential SSI connection ...
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... In this mode, the AS5134 is connected to the external controller via three signals: Chip Select (CS), Clock (DCLK) inputs and bi-directional DIO (Data In/Out) output. The controller sends commands over the DIO pin at the beginning of each data transmission sequence, such as reading the angle or putting the AS5134 in and out of the reduced power modes. ...
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... I/O pin) is required for the DIO connection. As the first 5 bits of the data transmission are command bits sent to the AS5134, both the microcontroller and the AS5134 are configured as digital inputs during this phase. Therefore, a pull-down resistor must be added to make sure that the AS5134 reads “00000” as the first 5 bits, which sets the Read_Angle command. ...
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... Data Sheet - Serial 2-Wire Connection (R/W Mode) By connecting the configuration input C2 to VDD, the AS5134 is configured to 2-wire data transmission mode. Only Clock (DCLK) and Data (DIO) signals are required. A Chip Select (CS) signal is automatically generated by the DX output, when a time-out of DCLK occurs (typ. 20µs). ...
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... This type of configuration is especially useful for remote sensors. Ultra Low Power Mode is not possible in this configuration, as there is no bi-directional data transmission. If the AS5134 angular data is invalid, the PWM output will remain at low state. Pins that are not shown may be left open. ...
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... PWM output, this configuration produces an analog voltage that is proportional to the angle. This filter can be either passive (as shown in analog output can be achieved. If the AS5134 angular data is invalid, the PWM output will remain at low state and thus the analog output will be 0V. Pins that are not shown may be left open. ...
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... AS5134 Data Sheet - Quadrature A/B/Index Output The phase shift between channel A and B indicates the direction of the magnet movement. Channel A leads channel clockwise rotation of the magnet (top view electrical degrees. Channel B leads channel counter- clockwise rotation. Figure 10. Incremental Output Modes Quad A/B/Index-Mode ...
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... AS5134 Data Sheet - Table 8. Programming Options for the Commutation Signals U/V/W uvw (11: Daisy Chain Mode The angle information from the device and the setup for the device is handled over the digital interface. A special port (Dx) can be used to implement a daisy chain mode. Depending on the configuration possible to implement a two wire or a three wire mode ...
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... AS5134 Data Sheet - Waveform – Digital Interface @ Three Wire Daisy Chain Mode Note: Defined if the Pin C2 is set all devices Figure 12. Three Wire Daisy Chain Mode CMD( D15D14D13 DCLK CS(1) CS_INT(1) DX(1) = CS(2) CS_INT(2) DX(2) = CS(3) CS_INT(3) DIO CS CLK www.austriamicrosystems.com Data(1) ...
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... AS5134 Data Sheet - Waveform – Digital Interface @ Two Wire Daisy Chain Mode Note: Defined, if the Pin C2 is set all devices except the last one where the Pin C2 is set to HI Figure 13. Two Wire Daisy Chain Mode t14_2 CMD( D15 D14 D13 ...
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... EN PROG: Enables the access to the OTP register. WRITE CONFIG activates the sleep mode of the AS5134. The power consumption is significantly reduced returns to normal operation mode. During sleep mode, the lock bit in command 0 and command 1 is LO. RD_MT Counter: Command for read out of multi turn register. ...
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... This programming option allows the user to match the vertical distance of the magnet with the optimum magnetic field range of the AS5134 by setting the sensitivity level. The 2-bit user programmable sensitivity setting can be applied both temporarily (command WRITE OTP, #31) or permanently (command PROG OTP, #25). ...
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... AS5134 Data Sheet - Figure 14. OTP Programming Connection +5V VDD VDD VSS VSS V zapp 100nF 10µF Programming Verification After programming, the programmed OTP bits may be verified in two ways: By Digital Verification: This is simply done by sending a READ OTP command (#15). The structure of this register is the same as for the OTP PROG or OTP WRITE commands. ...
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... AS5134 may be reduced due to the out of range condition of the magnetic field strength. Magnetic Field Strength Indicators The AS5134 is not only able to sense the angle of a rotating magnet, it can also measure the magnetic field strength (and hence the vertical distance) of the magnet. This additional feature can be used for several purposes safety feature by constantly monitoring the presence and proper vertical distance of the magnet - as a state-of-health indicator, e ...
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... In worst case, usually at start-up, the TADC requires up to 255 steps (255 * 2µs = 510µs) to lock. Once it is locked, it requires only one cycle [2µs (typ. 1.4)] to track the moving magnet. The AS5134 can operate in locked mode at rotational speeds up to min. 25.000 rpm. ...
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... For high speed applications, fast ADC’s are essential. The ADC sampling rate directly influences the propagation delay. The fast tracking ADC used in the AS5134 with a tracking rate of only 1.4 µs (typ perfect fit for both high speed and high performance. ...
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... In Low Power Mode, the AS5134 is inactive. The last state (for e.g. the angle, AGC value, etc.) is frozen and the chip starts from this frozen state when it resumes active operation. This method provides much faster start-up than a “cold start” ...
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... AS5134 Data Sheet - Magnet Diameter and Vertical Distance Note: Following is just an abstract taken from the elaborate application note on the Magnet. For more detailed information, please visit our homepage → Magnet Application Notes Encoders The Linear Range The Hall elements used in the AS5000-series sensor ICs are sensitive to the magnetic field component Bz, which is the magnetic field vertical to the chip surface ...
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... AS5134 Data Sheet - shown in Figure 19 (grey zone), the Hall elements are located on the chip at a circle with a radius of 1.1mm. Since the difference between two opposite Hall sensors is measured, there will be no difference in signal amplitude when the magnet is perfectly centered or if the magnet is misaligned in any direction as long as all Hall elements stay within the linear range ...
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... AS5134 Data Sheet - Magnet Thickness Figure 20 shows the relationship of the peak amplitude in a rotating system (essentially the magnetic field strength of the Bz field component) in relation to the thickness of the magnet. The X-axis shows the ratio of magnet thickness (or height) [h] to magnet diameter [d] and the Y-axis shows the relative peak amplitude with reference to the recommended magnet (d=6mm, h=2 ...
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... AS5134 Data Sheet - Axial Distance (Airgap) Figure 21. Sinusoidal Magnetic Field generated by the Rotating Magnet B vertical field The recommended magnetic field, measured at the chip surface on a radius equal to the Hall sensor array radius (typ. 1.1mm) should be within a certain range. This range lies between 45 and 75mT or between 20 and 80mT, depending on the encoder product ...
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... AS5134 Data Sheet - Figure 22. 3D Graph Displaying Non-Linearity Over XY-Misalignment Linearity Error over XY-misalignment [°] -1000 -600 -200 200 Y 600 For volume production, the placement tolerance of the IC within the package (±0.235mm) must also be taken into account. The total nonlinearity error over process tolerances, temperature and a misalignment circle radius of 0.25mm is specified better than ± ...
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... AS5134 Data Sheet - Figure 23. Magnetic Field Lines in Air Figure 23 shows the ideal case with the magnet in air. No magnetic materials are anywhere nearby. Figure 24. Magnetic Field Lines in Plastic or Copper Shaft If the magnet is mounted in non-magnetic material, such as plastic or diamagnetic material, such as copper, the mag- netic field distribution is not disturbed ...
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... AS5134 Data Sheet - Figure 25. Magnetic Field Lines in Iron Shaft If the magnet is mounted in a ferromagnetic material, such as iron, most of the field lines are attracted by the iron and flow inside the metal shaft (see Figure This configuration should be avoided! Figure 26. Magnetic Field Lines with Spacer between Magnet and Iron Shaft ...
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... Ideal for applications in harsh environments due to magnetic sensing principle High reliability due to non-contact sensing Robust system, tolerant to horizontal misalignment, airgap variations, temperature variations and external mag- netic fields AS5134 Parameter and Features List Table 12. Parameter and Features List Parameter Supply Voltage ...
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... BLDC pole pair options Hysteresis on BLDC outputs Switching positions www.austriamicrosystems.com AS5134 2µs / step. 360º angle range in all modes. Minimum pos. pulse width (@0º) = 16µs (8 LSB; tbd) Minimum neg. pulse width (@359º) = 16µs (8 LSB; tbd) Pulse width @0º = 16µs, Pause = 734µs Pulse width @1º ...
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... Incremental Outputs Incremental modes Step size Incremental Hysteresis OTP Programming OTP programming technology OTP programming options OTP programming method OTP programming verification www.austriamicrosystems.com AS5134 modes: Quad AB with Index (2x90 ppr), Step/direction (1x180 ppr) Fixed pulse width (360ppr) 1º 0-3LSB; 2LSB (default) ...
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... Revision 1 AYWWIZZ AS5134 inch Typ Max 0.073 0.078 0.005 0.008 0.068 0.070 - 0.015 0.284 0.289 0.209 0.212 0.0256 BSC 0.307 0.311 4º 8º ...
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... AS5134 Data Sheet - Recommended PCB Footprint Figure 28. PCB Footprint Table 14. Recommended Footprint Data Symbol www.austriamicrosystems.com mm 9.02 6.16 0.46 0.65 6.31 Revision 1.8 inch 0.355 0.242 0.018 0.025 0.248 ...
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... AS5134 Data Sheet - Ordering Information The devices are available as the standard products shown in Table 15. Ordering Information Model AS5134C-ZSST High speed up to 25.000 rpm www.austriamicrosystems.com Table 15. Description Delivery Form Tape&Reel Revision 1.8 Package SSOP20 ...
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... AS5134 Data Sheet - Copyrights Copyright © 1997-2008, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered ®. All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. All products and companies mentioned are trademarks or registered trademarks of their respective companies. ...