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AS5145 Datasheet(PDF) 8 Page - ams AG |
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AS5145 Datasheet(HTML) 8 Page - ams AG |
8 / 36 page www.austriamicrosystems.com/AS5145 Revision 1.10 8 - 36 AS5145 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 +150°C, 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 1. Either with 3.3V or 5V supply. 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 Table 3. Electrical Characteristics Symbol Parameter Condition Min Typ Max Unit |
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