AS5145B-HSST austriamicrosystems, AS5145B-HSST Datasheet
AS5145B-HSST
Specifications of AS5145B-HSST
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AS5145B-HSST Summary of contents
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... Three incremental outputs Quadrature A/B ( bit) and Index output signal (pre- programmed versions available AS5145A for 10 bit and AS5145B for 12 bit) User programmable zero position Failure detection mode for magnet placement, monitoring, and loss of power supply Red-Yellow-Green indicators display placement of magnet in Z- ...
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... Magnet Placement..................................................................................................................................................................... 26 9.5 Simulation Modeling ........................................................................................................................................................................... 26 9.6 Failure Diagnostics ............................................................................................................................................................................. 27 9.6.1 Magnetic Field Strength Diagnosis ............................................................................................................................................ 27 9.6.2 Power Supply Failure Detection ................................................................................................................................................ 27 9.7 Angular Output Tolerances ................................................................................................................................................................. 27 9.7.1 Accuracy .................................................................................................................................................................................... 27 9.7.2 Transition Noise......................................................................................................................................................................... 29 9.7.3 High Speed Operation ............................................................................................................................................................... 29 9.7.4 Propagation Delays ................................................................................................................................................................... 29 9.7.5 Internal Timing Tolerance .......................................................................................................................................................... 30 9.7.6 Temperature .............................................................................................................................................................................. 30 www.austriamicrosystems.com/AS5145 Revision 1. ...
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... AS5145 Data Sheet - 9.7.7 Accuracy over Temperature ...................................................................................................................................................... 30 9.8 AS5145 Differences to AS5045.......................................................................................................................................................... 30 10 Package Drawings and Markings ......................................................................................................................................... 10.1 Recommended PCB Footprint.......................................................................................................................................................... 33 11 Ordering Information ............................................................................................................................................................. www.austriamicrosystems.com/AS5145 Revision 1. ...
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... MagDECn 3 DTest1_A 4 DTest2_B Mode_Index PDIO CLK 11 CSn 12 PWM 13 NC www.austriamicrosystems.com/AS5145 VSS 8 9 PDIO Description Magnet Field Magnitude INCrease; active low, indicates a distance reduction between the magnet and the device surface. (see Table 9) Magnet Field Magnitude DECrease; active low, indicates a distance increase between the device and the magnet ...
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... Pin 12 allows a single wire output of the 12-bit absolute position value. The value is encoded into a pulse width modulated signal with 1µs pulse width per step (1µs to 4096µs over a full turn). By using an external low pass filter, the digital PWM signal is converted into an analog voltage, e.g. for making a direct replacement of potentiometers possible. www.austriamicrosystems.com/AS5145 Description Must be left unconnected 3V-Regulator Output, internally regulated from V voltage ...
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... Table 2. Absolute Maximum Ratings Parameter DC supply voltage at pin supply voltage at pin V 3V3 DD Input pin voltage Input current (latchup immunity) Electrostatic discharge Storage temperature Package Body temperature Humidity non-condensing www.austriamicrosystems.com/AS5145 Section 6 Electrical Characteristics on page 7 Min Max Units -0 -0 ...
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... Low level input voltage IL I High level input current iL DC Characteristics CMOS Output Open Drain: MagINCn, MagDECn I Open drain leakage current OZ V Low level output voltage OL www.austriamicrosystems.com/AS5145 5V = 4.5-5.5V (5V operation) unless otherwise noted. DD Condition 5V Operation 3.3V Operation (pin V 5V and V 3V3 connected supply voltage 3.3V (V ...
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... V AMB DD Two-pole cylindrical diametrically magnetized source: Table 4. Magnetic Input Specification Symbol Parameter d Diameter mag t Thickness mag B Magnetic input field amplitude pk B Magnetic offset off Field non-linearity Input frequency f mag_abs (rotational speed of magnet) www.austriamicrosystems.com/AS5145 Condition V 5V 5V 5V 5V: 4. ...
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... S output: Internal sampling rate for absolute f S output CLK/SEL Read-out frequency www.austriamicrosystems.com/AS5145 Condition Max. offset between defined device center and magnet axis (see Figure 19) Eccentricity of magnet center to rotational axis NdFeB (Neodymium Iron Boron) SmCo (Samarium Cobalt 4.5 to 5.5V (5V operation) unless otherwise noted. ...
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... Integral Non-Linearity (INL) is the maximum deviation between actual position and indicated position. Differential Non-Linearity (DNL) is the maximum deviation of the step length from one position to the next. Transition Noise (TN) is the repeatability of an indicated position. www.austriamicrosystems.com/AS5145 Actual curve TN Ideal curve DNL+1LSB INL 0.35° ...
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... CHARGE f LOAD frequency LOAD f READ frequency READ f WRITE frequency WRITE www.austriamicrosystems.com/AS5145 5V = 4.5 to 5.5V (5V operation), unless otherwise noted. DD Conditions Min Time between falling edge of CSn and data output activated Time between falling edge of CSn and 500 first falling edge of CLK Rising edge of CLK shifts out one bit at a ...
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... Maximum speed @ 1024 samples/rev Maximum speed @ 256 samples/rev Maximum speed @ 64 samples/rev Note: A change of the Mode during operation is not allowed. The setup must be constant during power up and during operation. www.austriamicrosystems.com/AS5145 Slow Mode (mode= low or open) 2.61 kHz (384 µs) ≤ 0.03º rms 384µ ...
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... Even Parity bit for transmission error detection of bits 1…17 (D11…D0, OCF, COF, LIN, MagINC, MagDEC) Placing the magnet above the chip, angular values increase in clockwise direction by default. Data D11:D0 is valid, when the status bits have the following configurations: Table 8. Status Bit Outputs OCF COF 1 0 Note: MagInc=MagDec=1 is only recommended in YELLOW mode www.austriamicrosystems.com/AS5145 ...
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... With the OTP bits OutputMd0 and OutputMd1 a specific mode can be selected. For the available pre-programmed incremental versions (10bit and 12bit), these bits are set during test at austriamicrosystems. These settings are permanent and can not be recovered. A change of the incremental mode (WRITE command) during operation could cause problems. A power-on-reset in between is recommended. ...
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... LSB, until position “x+2“is reached. Following this direction, the incremental outputs will again be updated with every change of the magnet position. Figure 7. Hysteresis Window for Incremental Outputs Incremental Output Indication www.austriamicrosystems.com/AS5145 Programmed Zero Position 1 LSB 3 LSB Hysteresis : 0.35° ...
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... The last data bit of the first device (Parity) is followed by a dummy bit and the first data bit of the second device (D11), etc. Figure 9. Daisy Chain Hardware Configuration µC Data IN CLK CSn www.austriamicrosystems.com/AS5145 400µs (100µs) AS5145 AS5145 AS5145 st nd ...
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... The PWM frequency is internally trimmed to an accuracy of ±5% (±10% over full temperature range). This tolerance can be cancelled by measuring the complete duty cycle as shown above. Figure 11. PWM Output Signal Angle 0 deg (Pos 0) 359.91 deg (Pos 4095) www.austriamicrosystems.com/AS5145 ...
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... R1 should be greater than or equal to 4k7 to avoid loading of the PWM output. Larger values of Rx and Cx will provide better filtering and less ripple, but will also slow down the response time. www.austriamicrosystems.com/AS5145 Table 11: ...
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... Note: The zero position value may also be modified before programming, e.g. to program an electrical zero position that is 180º (half turn) from the mechanical zero position, just add 2048 to the value read at the mechanical zero position and program the new value into the OTP register. www.austriamicrosystems.com/AS5145 (see Figure 13). ...
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... Output Md1: Setting this bit enables sync- or 12bit incrememantal mode - Z [11:0]: Programmable Zero / Index Position www.austriamicrosystems.com/AS5145 Symbol mbit1 Factory Bit 1 PMW frequency Index pulse width Alarm mode (programmed by MagCompEn austriamicrosystems to 1) pwmDIS Disable PWM Output Md0 Default, 10 bit inc, 12 bit inc Output Md1 bit Zero Position ...
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... For a better programming reliability a redundancy is implemented. In case when the programming of one bit failed this function can be used. With an address RA(4:0) one bit can be selected and programmed. Table 14. Redundancy Addressing Address 00000 00001 00010 00011 00100 00101 00110 00111 01000 01001 01010 01011 01100 01101 01110 01111 10000 10001 10010 10101 www.austriamicrosystems.com/AS5145 ...
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... NC PWM 6 11 CSn Mode_Index 7 10 VSS CLK 8 9 PDIO DO 10n AS5145 2.2µF Cap only required for OTP programming www.austriamicrosystems.com/AS5145 OTP Access Figure 13. AS5145 Demoboard For programming, keep these 6 wires as short as possible! max. length = 2 inches (5cm) 7 PROG 6 CSN CLK 3 5VUSB 2 ...
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... Note: The V 3V3 output is intended for internal use only It must not be loaded with an external load. DD The output voltage of the digital interface I/O’s corresponds to the voltage at pin V www.austriamicrosystems.com/AS5145 (see Figure AlignMode enable 2µs 2µs min ...
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... The magnetic field strength perpendicular to the die surface has the range of ±45mT…±75mT (peak). The magnet’s field strength should be verified using a gauss-meter. The magnetic field given distance, along a concentric circle with a radius of 1.1mm (R1), should be in the range of www.austriamicrosystems.com/AS5145 3.3V Operation VDD5V ...
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... Figure 18. Typical Magnet (6x3mm) and Magnetic Field Distribution 9.4.1 Physical Placement of the Magnet The best linearity can be achieved by placing the center of the magnet exactly over the defined center of the chip as shown in the drawing below: Figure 19. Defined Chip Center and Magnet Displacement Radius www.austriamicrosystems.com/AS5145 typ. 6mm diameter N S ...
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... The Hall sensors in the area of magnetic sensitivity are grouped and configured such that orthogonally related components of the magnetic fields are sampled differentially. The differential signal Y1-Y2 will give a sine vector of the magnetic field. The differential signal X1-X2 will give an orthogonally related cosine vector of the magnetic field. www.austriamicrosystems.com/AS5145 1 ...
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... The total misalignment area of the graph covers a square of 2x2mm (79x79mil) with a step size of 100µm. For each misalignment step, the measurement as shown in (Errmax – Errmin)/2 (e.g. 0.25º in Figure 23) is entered as the Z-axis in the 3D-graph. www.austriamicrosystems.com/AS5145 ( ) Y1 Y2 – Θ ...
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... The magnet used for this measurement was a cylindrical NdFeB (Bomatec® BMN-35H) magnet with 6mm diameter and 2.5mm in height. Figure 23. Example of Linearity Error Over 360º 0.5 0.4 0.3 0.2 0 109 163 217 -0.1 -0.2 -0.3 -0.4 -0.5 www.austriamicrosystems.com/AS5145 y Err max 271 325 379 433 487 541 595 649 Err min Revision 1.11 800 500 200 -100 ...
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... Angular Error Caused by Propagation Delay. This error increases linearly with speed: Where: esampling = angular error [º] rpm = rotating speed [rpm] prop.delay = propagation delay [seconds] Note: Since the propagation delay is known, it can be automatically compensated by the control unit processing the data from the AS5145. www.austriamicrosystems.com/AS5145 ---------------------------------- - slowmode ⋅ ...
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... Pins 1 and 2 indicator red-yellow-green magnetic range Pin3 (DTest1_A); Pin 4 (DTest2_B); Pin 6 Incremental encoder MODE_Index pin, switch between fast and slow mode. Pin 6 In case of incremental mode is this pin an output the www.austriamicrosystems.com/AS5145 and calculating the angle from the duty cycle off ⋅ t 4097 on ...
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... Propagation delay Transition noise (rms; 1sigma) PPTRIM; programming voltage 3.3V – 3.6V <70ºC; OTP programming options 52-bit serial data protocol; CSn, PDIO and CLK www.austriamicrosystems.com/AS5145 AS5145 selectable by MODE input pin: 2.5kHz, 10,4kHz 384µs (slow mode) 96µs (fast mode) 0.03 degrees max. (slow mode) 0.06 degrees max. (fast mode) 3.5V – ...
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... AS5145 Data Sheet - Package Drawings and Markings The device is available in SSOP 16 (5.3mm x 6.2mm). Figure 24. Package Drawings Table 16. Package Dimensions Symbol www.austriamicrosystems.com/AS5145 AYWWIZZ AS5145 mm Min Typ 1.73 1.86 0.05 0.13 1.68 1.73 0.25 0.315 0.09 - 6.07 6.20 7.65 7.8 5.2 5.3 0.65 0º ...
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... AS5145 Data Sheet - 10.1 Recommended PCB Footprint Figure 25. PCB Footprint Table 17. Recommended Footprint Data Symbol www.austriamicrosystems.com/AS5145 mm 9.02 6.16 0.46 0.65 5.01 Revision 1. ...
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... Sep 29, 2009 1.9 Nov 05, 2009 1.10 Dec 04, 2009 Jun 16, 2010 1.11 Jun 25, 2010 www.austriamicrosystems.com/AS5145 Owner Changed the temperature to 150ºC across the datasheet. apg Added Key Feature: Fully automotive qualified to AEC-Q100, grade 0 Changed the values in Table 10 Inserted 10kΩ for pin 6 in ...
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... AS5145A-HSSU Pre-programmed 10 bit incremental AS5145B-HSSU Pre-programmed 12 bit incremental 1. The pre-programmed devices AS5145A-HSSU and AS5145B-HSSU are available on request. 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 ...
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... AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system necessary to check with austriamicrosystems AG for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by austriamicrosystems AG for each application ...