General Description
The AS5040 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.
Key Benefits & Features
The benefits and features of AS5040, 10-Bit 360º Programmable Magnetic Rotary Encoder are listed below:
Benefits
⢠Highest reliability and durability
⢠Simple programming
⢠Multiple interfaces
⢠Ideal for motor applications
⢠Failure diagnostics
⢠Easy setup
⢠Great flexibility at a huge application area
⢠Fully automotive qualified
⢠Small form factor
⢠Robust environmental tolerance
Features
⢠Contactless high resolution rotational position encoding
over a full turn of 360 degrees
⢠Simple user-programmable resolution, pole pairs and zero
position
⢠Serial communication interface (SSI)
⢠10-bit pulse width modulated (PWM) output
⢠Quadrature A/B and Index output signal
⢠Step/Direction and Index output signal
⢠3-Phase commutation for brushless DC motors
⢠Rational speeds up to 30000 rpm
⢠Failure detection mode for magnet placement monitoring
and loss of power supply
⢠Serial read-out of multiple interconnected devices using
daisy chain mode
⢠Push button functionality detects movement of magnet in Z-axis
⢠AEC-Q100, grade 1
⢠SSOP 16 (5.3mm x 6.2mm)
⢠Wide temperature range: -40°C to 125°C
Applications
AS5040 is ideal for:
⢠Industrial applications:
⢠Contactless rotary position sensing
⢠Robotics
⢠Brushless DC motor commutation
⢠Power tools
⢠Automotive applications:
⢠Steering wheel position sensing
⢠Gas pedal position sensing
⢠Transmission gearbox encoder
⢠Headlight position control
⢠Power seat position indicator
⢠Office equipment: printers, scanners, copiers
⢠Replacement of optical encoders
⢠Front panel rotary switches
⢠Replacement of potentiometers
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