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AS5045 数据表(PDF) 1 Page - ams AG |
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AS5045 数据表(HTML) 1 Page - ams AG |
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1 / 24 page  Revision 1.5 www.austriamicrosystems.com Page 1 of 24 1 General Description The AS5045 is a contactless magnetic rotary encoder for accurate angular measurement over a full turn of 360°. It is a system-on-chip, combining integrated Hall elements, analog front end and digital signal processing in a single device. To measure the angle, only a simple two-pole magnet, rotating over the center of the chip, is required. The magnet may be placed above or below the IC. The absolute angle measurement provides instant indication of the magnet’s angular position with a resolution of 0.0879° = 4096 positions per revolution. This digital data is available as a serial bit stream and as a PWM signal. An internal voltage regulator allows the AS5045 to operate at either 3.3 V or 5 V supplies Figure 1: Typical arrangement of AS5045 and magnet 1.1 Benefits - Complete system-on-chip - Flexible system solution provides absolute and PWM outputs simultaneously - Ideal for applications in harsh environments due to contactless position sensing - No calibration required 1.2 Key Features - Contactless high resolution rotational position encoding over a full turn of 360 degrees - Two digital 12bit absolute outputs: - Serial interface and - Pulse width modulated (PWM) output - 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-axis - Serial read-out of multiple interconnected AS5045 devices using Daisy Chain mode - Tolerant to magnet misalignment and airgap variations - Wide temperature range: - 40°C to + 125°C - Small Pb-free package: SSOP 16 (5.3mm x 6.2mm) 1.3 Applications - Industrial applications: - Contactless rotary position sensing - Robotics - Automotive applications: - Steering wheel position sensing - Transmission gearbox encoder - Headlight position control - Torque sensing - Valve position sensing - Replacement of high end potentiometers DATA SHEET AS5045 12 BIT PROGRAMMABLE MAGNETIC ROTARY ENCODER |
类似零件编号 - AS5045 |
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类似说明 - AS5045 |
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