AS5045 View Datasheet(PDF) - austriamicrosystems AG
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Description
Manufacturer
AS5045 Datasheet PDF : 33 Pages
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AS5045
Data Sheet
Table of Contents
1
General Description ................................................................................................................................ 1
2
Benefits................................................................................................................................................... 1
3
Key Features .......................................................................................................................................... 1
4
Applications ............................................................................................................................................ 1
5
Pinout ..................................................................................................................................................... 4
5.1 Pin Configuration .................................................................................................................................... 4
5.2 Pin Description........................................................................................................................................ 4
6
Electrical Characteristics......................................................................................................................... 5
6.1 AS5045 Differences to AS5040 ............................................................................................................... 5
6.2 Absolute Maximum Ratings (non operating) ............................................................................................ 6
6.3 Operating Conditions .............................................................................................................................. 6
6.4 DC Characteristics for Digital Inputs and Outputs.................................................................................... 7
6.4.1 CMOS Schmitt-Trigger Inputs: CLK, CSn. (CSn = internal Pull-up).......................................................... 7
6.4.2 CMOS / Program Input: Prog................................................................................................................... 7
6.4.3 CMOS Output Open Drain: MagINCn, MagDECn .................................................................................... 7
6.4.4 CMOS Output: PWM ............................................................................................................................... 7
6.4.5 Tristate CMOS Output: DO ...................................................................................................................... 8
6.5 Magnetic Input Specification ................................................................................................................... 8
6.6 Electrical System Specifications .............................................................................................................. 9
6.7 Timing Characteristics............................................................................................................................10
6.7.1 Synchronous Serial Interface (SSI).........................................................................................................10
6.7.2 Pulse Width Modulation Output ..............................................................................................................11
6.8 Programming Conditions ........................................................................................................................11
7
Functional Description............................................................................................................................12
8
Mode Input Pin.......................................................................................................................................13
8.1 Synchronous Serial Interface (SSI) ........................................................................................................13
8.1.1 Data Content ..........................................................................................................................................14
8.1.2 Z-axis Range Indication (Push Button Feature, Red/Yellow/Green Indicator)..........................................14
8.2 Daisy Chain Mode..................................................................................................................................15
9
Pulse Width Modulation (PWM) Output ..................................................................................................16
9.1 Changing the PWM Frequency...............................................................................................................17
10
Analog Output ........................................................................................................................................17
11
Programming the AS5045 ......................................................................................................................18
11.1 Zero Position Programming....................................................................................................................18
11.2 Repeated OTP Programming .................................................................................................................18
11.3 Non-permanent Programming ................................................................................................................19
11.4 Analog Readback Mode .........................................................................................................................20
12
Alignment Mode .....................................................................................................................................21
13
3.3V / 5V Operation ...............................................................................................................................22
14
Choosing the Proper Magnet..................................................................................................................23
14.1 Physical Placement of the Magnet .........................................................................................................24
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