AS5130-ASSU austriamicrosystems, AS5130-ASSU Datasheet
AS5130-ASSU
Specifications of AS5130-ASSU
Related parts for AS5130-ASSU
AS5130-ASSU Summary of contents
Page 1
... This digital data is available as a serial bit stream and as a PWM signal. The AS5130 can be operated in pulsed mode (Vsupply=off), which reduces the average power consumption significantly. During Vsupply=off, the measured angle can be stored using an internal storage register supplied by a low power voltage line ...
Page 2
... High Speed Operation ........................................................................................................................................................................ 21 7.7.1 Propagation Delay ..................................................................................................................................................................... 21 7.7.2 Sampling Rate ........................................................................................................................................................................... 21 7.7.3 Chip Internal Lowpass Filtering ................................................................................................................................................. 21 7.7.4 Digital Readout Rate.................................................................................................................................................................. 21 7.7.5 Total Propagation Delay of the AS5130 .................................................................................................................................... 21 7.8 Reduced Power Modes ...................................................................................................................................................................... 22 7.8.1 Low Power Mode ....................................................................................................................................................................... 22 7.8.2 Power Cycling Mode.................................................................................................................................................................. 23 7.8.3 Polling Mode .............................................................................................................................................................................. 24 8 Application Information ........................................................................................................................................................... ...
Page 3
... AS5130 Data Sheet - 8.4.6 Magnet Size............................................................................................................................................................................... 36 9 Package Drawings and Markings ........................................................................................................................................... 9.1 Recommended PCB Footprint............................................................................................................................................................ 38 10 Ordering Information............................................................................................................................................................. www.austriamicrosystems.com/AS5130 Revision 1. ...
Page 4
... PWM www.austriamicrosystems.com/AS5130 PWM 15 WAKE AS5130 5 VDD 12 DIO DCLK Description Indicates if the magnetic field is present. If the field is too low, the signal is HI. OTP Programming Pad, programming voltage. For normal operation it must be left unconnected. Supply Ground. Used for factory testing. For normal operation it must be left unconnected. ...
Page 5
... Input Current (latchup immunity) Electrostatic Discharge Package Thermal Resistance SSOP-16 Storage Temperature Ambient Temperature Junction Temperature Package body temperature Humidity non-condensing www.austriamicrosystems.com/AS5130 Electrical Characteristics on page 6 Min Max Units Only relevant for polling operation mode, supply voltage with capacitor of the integrated storage register 0.3 ...
Page 6
... CMOS Input V High level Input voltage IH V Low level Input Voltage IL I Input Leakage Current LEAK www.austriamicrosystems.com/AS5130 Conditions Except OTP programming Startup from zero Startup with preset AGC - Polling mode (Supplied during t phase of VDD from the off external buffer capacitor via DV pin) ...
Page 7
... CLK Clock Frequency t CLK Clock Frequency CLK www.austriamicrosystems.com/AS5130 Conditions External capacitive load C_L = 35pF External series resistance R = 0Ω Junction temperature T = 136ºC J Rise time of the internal driver t_rise = 3ns Fall time of the internal driver t_fall = 3ns Open drain output with tri-state behavior ...
Page 8
... The gain can be set in 8 steps in the OTP or by the SSI in a mirror register. The resulting magnetic input range is a value of B inside of a range of 32mT …75mT, if the trimming is performed by the customer. Table 5. Magnetic Input Range Setting 0 1 Binary 000 001 Gain A 0.9 1.05 B Max. 75mT limit www.austriamicrosystems.com/AS5130 Conditions 010 011 100 1.2 1.4 1.65 Revision 1.11 Min Typ Max ...
Page 9
... Serial 3-Wire Connection (Default Setting) In this mode, the AS5130 is connected to the external controller via three SSI signals: Chip Select (CS), Clock (CLK) input and DIO (Data) in/ output. This configuration not only helps to read and write data but also defines different operation modes. The data transfer in all cases is done via the DIO port ...
Page 10
... Figure 6. Extended Operation Mode (for access of OTP only) CMD_PHASE DCLK DIO CMD4 CMD3 CMD2 CMD1 t3 t4 DIO DIO Table 7. Serial Bit Sequence (16-bit read/write) Write Command D15 D14 www.austriamicrosystems.com/AS5130 DATA_PHASE t5 CMD2 CMD1 CMD0 t6 t8 D15 D14 t11 t12 D15 D14 Read/Write Data D13 D12 D11 D10 DATA_PHASE t5 ...
Page 11
... If the line (PWM) is used as angle output, the total number of connections can be reduced to three, including the supply lines. This type of configuration is especially useful for remote sensors. Low power mode is not possible in this configuration. If the AS5130 angular data is invalid, the PWM output will remain at low state. ...
Page 12
... OFF 7.1.4 Analog Output The AS5130 can generate a ratiometric analog output voltage by low-pass filtering the PWM output. low pass filter as an example. In order to minimize the ripple on the analog output, the cut-off frequency of the low pass filter should be well below the PWM base frequency. ...
Page 13
... Analog Sin/Cos Outputs with External Interpolator By connecting the AS5130 provides analog Sine and Cosine outputs (SINP, COSP) of the Hall array front-end for test purposes. DD 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 Sinus and Cosine signals (SINN, COSN ...
Page 14
... AS5130 Data Sheet - Figure 11. Sine and Cosine Outputs for External Angle Calculation + micro controller V SS www.austriamicrosystems.com/AS5130 SINN D A SINP AS5130 AS5130 COSN D A COSP Revision 1.11 100n ...
Page 15
... RD2COS / RD2SIN: The Hall array configuration for cosine and sine channel can be read out by these commands, initial values are 0. SET TEST CFG 1: gen_rst HI triggers a digital reset. WRITE CONFIG: go2sleep HI activates the low power mode of the AS5130. The power consumption is significantly reduced. go2sleep LO returns to normal operation mode. During low power mode, the lock bit in command 0 and command 1 is LO. ...
Page 16
... RD_OTP: Read out the content of the OTP register. Data written by WRITE_OTP and PROG_OTP is read out. RD_OTP_ANA: Analog read out mode. The analog value of every OTP bit is available at pin 2 (PROG), which allows for a verification of the fuse process. No data is available at the SSI. www.austriamicrosystems.com/AS5130 at a low voltage (polling mode off or cap discharged) or the DD < ...
Page 17
... I/O DIO controller 8.0 - 8.5V PROG + 10µF 100n maximum V parasitic cable SUPPLY inductance L<50nH V DD zapp V prog PROG C1 GND C2 PROM Cell 100nF 10µF Min Revision 1.11 DD AS5130 100n AS5130 V SS Max Unit Notes 5 8 pin PROG 85 ºC 100 kHz At pin DCLK ...
Page 18
... Only one single bit can be overwritten with a logic HI. An improper fusing cannot be made undone. <15:12> replaced bit 0000 none 0001 0010 0011 0100 0101 0110 0111 www.austriamicrosystems.com/AS5130 Output CS Output CLK AS5130 AS5130 I/O DIO PROG <15:12> 1000 0 1001 1 1010 2 1011 3 1100 4 1101 5 ...
Page 19
... Lock = 1 0x00h < AGC < 0x2Fh 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 AS5130 may be reduced due to the out of range condition of the magnetic field strength. 7.5.2 Magnetic Field Strength Indicators The AS5130 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 ...
Page 20
... AS5130 Data Sheet - The best performance of the AS5130 will be achieved when operating within the AGC range. It will still be operational outside the AGC range, but with reduced performance especially with a weak magnetic field due to increased noise. Factors Influencing the AGC Value. In practical use, the AGC value will depend on several factors: The initial strength of the magnet ...
Page 21
... Data Sheet - 7.7 High Speed Operation The AS5130 is using a fast tracking ADC (TADC) to determine the angle of the magnet. The TADC has a tracking rate of 1.15µs (typ). Once the TADC is synchronized with the angle, it sets the LOCK bit in the status register TADC requires a maximum of 127 steps (127 * 1.15µS = 146.05µs) to lock. Once it is locked, it requires only one cycle (1.15µs) to track the moving magnet ...
Page 22
... The angle data is valid, as soon as the LOCK- Flag Reduced Power Modes, the AS5130 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. ...
Page 23
... Data Sheet - the AS5130 is cycled between active and reduced current mode, a substantial reduction of the average supply current can be achieved. The minimum dwelling time in active mode is the wake-up time. The actual active time depends on how much the magnet has moved while the AS5130 was in reduced power mode ...
Page 24
... WAKE is generated at every startup. 5. The update of the storage registers is stopped on), the values are read back from the storage registers and the measured angle is compared with the stored reference angle the difference between both exceeds the threshold, a WAKE pulse is generated. www.austriamicrosystems.com/AS5130 DV DD WAKE V DD ...
Page 25
... WAKE (20 clk periods) Normal mode true OTP readout (OTP <8> 10us. After that, the wake up signal will go to tri- wakeup VDD pull up resistor PAD WAKE AS5130 Revision 1.11 HI Compare mode α α stored| > threshold false command rst_otp false ...
Page 26
... Wake up pulse wake up t On-time on t Off-time off Figure 21. Wake Up Signal During Polling Mode of VDD VDD tri-state WAKE delta (actual - reference angle) > www.austriamicrosystems.com/AS5130 Min Max Unit 1.5 100 kΩ Interrupt signal to external devices, tri-state output, low 10 17 µs 250 --- µs --- ...
Page 27
... AS5130 Data Sheet - Application Information Benefits of AS5130 are as following: Complete system-on-chip Flexible system solution providing absolute angle position, with serial data and PWM output Ideal for applications in harsh environments due to magnetic sensing principle High reliability due to non-contact sensing Robust system, tolerant to misalignment, airgap variations, temperature variations and external magnetic fields 8 ...
Page 28
... Application Example II: Low-Power Encoder Via SSI, the AS5130 will be able to toggle between active mode and low power mode. In active mode, the current consumption is ~15mA and in low power mode 2mA. The fastest possible startup time from low power mode is 150µs. The AS5130 can be periodically switched between active and low power mode, the average power consumption depends on the duty cycle. In order to read out the correct data, the active mode time must be larger than 150µ ...
Page 29
... Once powered up for at least 2.5ms, the AS5130 can be operated in a pulsed mode, where it is periodically turned on/off by a high side FET (PMOS) switching transistor with a low Ron (<10Ω). The on-time is at least 250µs in order to perform one measurement. A valid measurement result can be verified by checking the lock bit (ADC is locked) in the serial data stream ...
Page 30
... The resolution of the encoder determines the smallest step size. The angle error caused by quantization cannot get better than ± ½ LSB. As shown in Figure 25, a higher resolution system (right picture) has a smaller quantization error, as the step size is smaller. For the AS5130, the quantization error is ± ½ LSB = ± 0.7º www.austriamicrosystems.com/AS5130 ...
Page 31
... The solid bold line in linearity) is reduced to from ~+/- 1.1º down to ~ +/-0.3º. The averaging however, also increases the total propagation delay, therefore it may be considered for low speeds only or adaptive; depending on speed www.austriamicrosystems.com/AS5130 INL including quantization error 90 135 ...
Page 32
... AGC will be reading 0. If the magnet is too far away (or missing the magnetic field is too weak, the AGC will be reading 63 (3FH). The AS5130 will still operate outside the AGC range, but the accuracy may be reduced as the signal amplitude can no longer be kept at a constant level ...
Page 33
... AS5130 Data Sheet - 8.4.3 Choosing the Proper Magnet There is no strict requirement on the type or shape of the magnet to be used with the AS5130. It can be cylindrical as well as square in shape. The key parameter is that the vertical magnetic field B 20...80mT (see Figure 28). Figure 28. Vertical Magnetic Fields of a Rotating Magnet www ...
Page 34
... For example, if the magnet is misaligned in X-axis by -0.5mm, the two X-Hall sensors will measure 70mT (@ x = -1.5mm) and -22mt (@ 0.5mm). Again, the differential amplitude is 92mT. At larger displacements however, the B errors that mainly affect the accuracy of the system www.austriamicrosystems.com/AS5130 Bz; 6mm magnet @y=0; z=1mm 0.0015 ...
Page 35
... X-and Y- displacement. The error includes the quantization error of ±0.7º (refer to a centered magnet is between 1.0 – 1.5º (spec = 2º over full temperature range). Within a radius of 0.5mm, the accuracy is better than 2.0º (spec = 3º over temperature). www.austriamicrosystems.com/AS5130 BZ; 6mm magnet @ Z=1mm N ...
Page 36
... Verify, that the magnetic field produces a sinusoidal wave, when the magnet is rotated. Note that this can be done with the SIN-/COS- out- puts of the AS5130; e.g. rotate the magnet at constant speed and analyze the SIN- (or COS-) output with an FFT-analyzer recom- mended to disable the AGC for this test ...
Page 37
... Table 14. SSOP-16 Package Dimensions Symbol Min A 1.73 A1 0.05 A2 1.68 b 0.25 c 0.09 D 6.07 E 7. 0º L 0.63 www.austriamicrosystems.com/AS5130 AYWWIZZ AS5130 mm Typ Max Min 1.86 1.99 0.068 0.13 0.21 0.002 1.73 1.78 0.066 0.315 0.38 0.010 - 0.20 0.004 6.20 6.33 0.239 7.8 7.9 0.301 5 ...
Page 38
... AS5130 Data Sheet - 9.1 Recommended PCB Footprint Figure 33. PCB Footprint Table 15. Recommended Footprint Data Symbol www.austriamicrosystems.com/AS5130 mm 9.02 6.16 0.46 0.65 5.01 Revision 1.11 inch 0.355 0.242 0.018 0.025 0.197 ...
Page 39
... Sep 11, 2008 1.9 Mar 03, 2009 1.10 Feb 02, 2010 1.11 Jun 09, 2010 Note: Typos may not be explicitly mentioned under revision history. www.austriamicrosystems.com/AS5130 Owner Ordering code updated Updated Absolute Maximum Ratings (page 5) apg Updated values for the following parameters page 6) 1) Power Supply Current ...
Page 40
... AS5130ASSU-OM Note: All products are RoHS compliant and Pb-free. Buy our products or get free samples online at ICdirect: For further information and requests, please contact us or find your local distributor at http://www.austriamicrosystems.com/distributor www.austriamicrosystems.com/AS5130 Table 16. Description Delivery Form Tape & Reel http://www.austriamicrosystems.com/ICdirect mailto:sales@austriamicrosystems ...
Page 41
... No obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems AG rendering of technical or other services. Contact Information Headquarters austriamicrosystems AG Tobelbaderstrasse 30 A-8141 Unterpremstaetten, Austria Tel: +43 (0) 3136 500 0 Fax: +43 (0) 3136 525 01 For Sales Offices, Distributors and Representatives, please visit: http://www.austriamicrosystems.com/contact www.austriamicrosystems.com/AS5130 Revision 1. ...