Overview
AS5040 is a non-contact magnetic rotary encoder for precise measurement
Measure the angle within 360°. This product is a system on a chip, in
Integrated Hall components, analog front-end and digital
According to signal processing function.
When measuring the angle, simply equip one above the center of the chip
A rotating bipolar magnet is sufficient. The magnet can be mounted on the top of the IC or
Below.
This absolute angle measurement method can indicate the angular position of the magnet instantly,
The resolution reaches 0.35°, which is 1024 positions per revolution. Digitizing
The data can be given in the form of a serial bit stream or a PWM signal.
In addition, it can also provide user-programmable incremental output, making the
The chip is very suitable for replacing all kinds of optical encoder products.
AS5040 has a built-in voltage regulator, allowing it to work at 3.3V or 5V
Power supply voltage.
1.1 Advantages
-Complete system on chip
-Flexible system solutions, while providing absolute value strings
Line output, PWM output and incremental output
-Due to the non-contact detection method, it is harsh to the working environment
Application is ideal
-Able to withstand magnet position deviation and air gap changes
-No need for temperature compensation
-No calibration required
1.2 Main features
-Achieve non-contact, high-resolution spin over the entire 360° range
Transposition coding
-2 kinds of digital, 10-bit absolute value output:
-Serial interface output, and
-Pulse width modulation (PWM) output
-3 incremental output modes:
-Quadrature A/B and Index output signal
-Step/direction and index output signals
-Can be used for 3-phase commutation of brushless DC motors
-10, 9, 8 or 7 bit user programmable resolution
-User programmable zero/index position
-Realize the fault detection mode of magnet position monitoring and power failure monitoring
-Rotation speed can be as high as 10,000 rpm
-A button function capable of detecting the movement of the magnet along the Z axis
-The daisy chain connection mode can be used to serially read multiple interconnected
AS5040 device
-Wide temperature range:-40°C to + 125°C
-Fully comply with the AEC-Q100, level 1 specification of the automotive industry
-Small lead-free package: SSOP 16 (5.3mm x 6.2mm)
1.3 Application
-Industrial applications:
-Non-contact rotation position detection
- robot technology
-Brushless DC motor commutation
- electrical tools
-Automotive applications:
-Steering wheel position detection
-Throttle position detection
-Transmission gearbox encoder
-Headlight position control
-Power seat position indicator
-Office equipment: printers, scanners, copiers
-Replace optical encoder
-Front panel rotary switch
-Replace potentiometer