as5134 austriamicrosystems, as5134 Datasheet
as5134
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as5134 Summary of contents
Page 1
... Wide magnetic field input range: 20 – Wide temperature range: - 40ºC to +140ºC 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.......................................................................................................................................... 19 ADC Sampling Rate ....................................................................................................................................... 19 Chip Internal Lowpass Filtering ...................................................................................................................... 19 Digital Readout Rate ...................................................................................................................................... 20 Total Propagation Delay of the AS5134 ......................................................................................................... 20 Reduced Power Modes ...................................................................................................................................... Low/Mid Power Mode..................................................................................................................................... 20 Power Cycling Mode ...................................................................................................................................... 21 8 Application Information ....................................................................................................................... Benefits of AS5134............................................................................................................................................ 9 Package Drawings and Markings ....................................................................................................... ...
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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 ...
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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 5 is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability ...
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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 ...
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... AS5134 Data Sheet - Table 3. Electrical Characteristics (Continued) Symbol Parameter V Programming Voltage PROG I Programming Current PROG Programming ambient Tamb PROG temperature t Programming time PROG V R,prog Analog readback voltage V R,unprog Hall Element Sensitivity Options ...
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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 ...
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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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... C2 lock 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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... AS5134 Data Sheet - command phase 3 DCLK DIO CMD4 CMD3 DIO Serial 2-Wire Differential SSI Connection With the addition of a RS-422 / RS-485 transceiver, a fully differential data transmission, according to the 21-bit SSI interface standard is possible ...
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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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... VSS Analog Sin/Cos Outputs with External Interpolator By connecting C1 to VDD, the AS5134 provides analog Sine and Cosine outputs (Sin, Cos) of the Hall array front-end for test purposes. These outputs allow the user to perform the angle calculation by an external ADC + µC, e.g. to compute the angle with a high resolution. In addition, the inverted Sine and Cosine signals (SINN, COSN; see dotted lines) are available for differential signal transmission. The input resistance of the receiving amplifier or ADC should be greater than 100kΩ ...
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... AS5134 Data Sheet - Figure 10. Incremental Output Modes Quad A/B/Index-Mode A B Index Brushless DC Motor Commutation Mode The BLDC signals will be used to control the electrical angle information – according to the amount of pole pairs and the actual mechanical angle position ...
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... EN PROG: Enables the access to the OTP register. WRITE CONFIG: go2sleep HI activates the sleep mode of the AS5134. The power consumption is significantly reduced. go2sleep LO 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 (multiturn) and AGC value (agc). “ ...
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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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... Lock = low). To determine a valid angular signal at best performance, the following indicators should be set: Lock = 1 AGC = >00H and < 2FH Note: The angle signal may also be valid (Lock = 1), when the AGC is out of range (00H or 2FH), but the accuracy of the AS5134 may be reduced due to the out of range condition of the magnetic field strength. www.austriamicrosystems.com VDD Output ...
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... Data Sheet - 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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... 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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... Total Propagation Delay of the AS5134 The total propagation delay of the AS5134 is the delay in the analog signal path and the tracking rate of the ADC: If only the SIN-/COS-outputs are used, the propagation delay is the analog signal path delay only (typ. 15.6µs). ...
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... C1 100n In Low/Mid Power Mode, the AS5134 is inactive. The last state, 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” from zero. If the AS5134 is cycled between active and reduced current mode, a substantial reduction of the average supply current can be achieved. The minimum dwelling time is < ...
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... AS5134 Data Sheet - Figure 16. Application Example III: Ultra-low Power Encoder VDD S 100n AS5134 VSS www.austriamicrosystems.com off off 0 10k VDD C1 >1µF on/off CS Micro N DCLK Controller DIO C2 VSS Revision 1.6 +5V VDD ...
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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 Figure 17. Typical Arrangement of AS5134 and Magnet AS5134 Parameter and Features List Table 10. Parameter and Features List Parameter ...
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... Serial interface program options Serial interface write options (temporary write; will be lost with POR) www.austriamicrosystems.com AS5134 8-bit (+127/-128 turns). Optional: >8-bit (tbd) Automatically updated during active mode at every 360º-/0º- transition in each rotating direction. The multiturn counter can be accessed over the serial interface and is reset with a power-on-reset ...
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... Incremental Hysteresis OTP Programming OTP programming technology OTP programming options OTP programming method OTP programming verification www.austriamicrosystems.com AS5134 SSOP-20 Field strength (AGC) readable through digital interface 20 – separate digital outputs: U,V,W Selectable for 1,2,3,4,5,6, pole pairs Same as incremental output hysteresis Pole pairs ...
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... AS5134 Data Sheet - Package Drawings and Markings The device is available in a 20pin SSOP package. Figure 18. 20-pin SSOP Package Drawings PIN 1 Identification Table 11. 20-pin SSOP Package Dimensions ...
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... AS5134 Data Sheet - Recommended PCB Footprint Figure 19. PCB Footprint Table 12. Recommended Footprint Data Symbol www.austriamicrosystems.com mm 9.02 6.16 0.46 0.65 6.31 Revision 1.6 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 13. Ordering Information Model Description AS5134ASST min. order quantity 2000pcs www.austriamicrosystems.com Table 13. Delivery Form Tape&Reel Revision 1.6 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. ...