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AS5245 Datasheet(PDF) 8 Page - ams AG |
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AS5245 Datasheet(HTML) 8 Page - ams AG |
8 / 33 page www.austriamicrosystems.com/AS5245 Revision 1.3 8 - 33 AS5245 Data Sheet - E l e c t r i c a l C h a r a c t e r i s t i c s 6.1 Magnetic Input Specification TAMB = -40 to +150ºC, VDD5V = 3.0 to 3.6V (3V operation) VDD5V = 4.5 to 5.5V (5V operation) unless otherwise noted. Two-pole cylindrical diametrically magnetized source: IO Output current VDD5V: 4.5V 4 mA VDD5V: 3V 2 DC Characteristics CMOS Output: PWM VOH High level output voltage VDD5V– 0.5 V VOL Low level output voltage VSS +0.4 V IO Output current VDD5V: 4.5V 4 mA VDD5V: 3V 2 DC Characteristics CMOS Output: A, B, Index VOH High level output voltage VDD5V– 0.5 V VOL Low level output voltage VSS +0.4 V IO Output current VDD5V: 4.5V 4 mA VDD5V: 3V 2 DC Characteristics Tri-state CMOS Output: DO VOH High level output voltage VDD5V– 0.5 V VOL Low level output voltage VSS +0.4 V IO Output current VDD5V: 4.5V 4 mA VDD5V: 3V 2 IOZ Tri-state leakage current 1 µA Table 4. Magnetic Input Specification Symbol Parameter Condition Min Typ Max Unit dmag Diameter Recommended magnet: Ø 6mm x 2.5mm for cylindrical magnets 46 mm tmag Thickness 2.5 mm Bpk Magnetic input field amplitude Required vertical component of the magnetic field strength on the die’s surface, measured along a concentric circle with a radius of 1.1mm 45 75 mT Boff Magnetic offset Constant magnetic stray field ± 10 mT Field non-linearity Including offset gradient 5 % fmag_abs Input frequency (rotational speed of magnet) 153 rpm @ 4096 positions/rev; fast mode 2.54 Hz 38 rpm @ 4096 positions/rev; slow mode 0.63 Disp Displacement radius Maximum offset between defined device center and magnet axis 0.25 mm Ecc Eccentricity Eccentricity of magnet center to rotational axis 100 µm Table 3. Electrical Characteristics Symbol Parameter Condition Min Typ Max Unit |
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