AS5055-EQFT-500
AS5055-EQFT-500 Datasheet
AS5055
| Part | Datasheet |
|---|---|
AS5055-EQFT-500 |
AS5055-EQFT-500 (pdf) |
| Related Parts | Information |
|---|---|
AS5055 AB |
AS5055 AB |
| PDF Datasheet Preview |
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| Datasheet AS5055 Low Power 12-Bit Magnetic Rotary Encoder 1 General Description The AS5055 is a single-chip magnetic rotary encoder IC with low voltage and low power features. It includes 4 integrated Hall elements, a high resolution ADC and a smart power management controller. The angle position, alarm bits and magnetic field information are transmitted over a standard 3-wire or 4-wire SPI interface to the host processor. The AS5055 is available in a small QFN 16-pin 4x4x0.85 mm package and specified over an operating temperature of -40ºC to +85ºC. Figure AS5055 Block Diagram 2 Key Features resolution SPI interface, 3 or 4 wire to 3.6V core voltage, 1.8V to 3.6V peripheral supply voltage wake-up over SPI interface output for conversion complete indication power mode: - < 8mA avg 620µs readout interval - < 5mA avg 1ms readout interval - < 500µA avg 10ms readout interval - < 53µA avg 100ms readout interval size 16-pin QFN 4x4x0.85 mm 3 Applications The device is ideal for Servo motor control, Input device for battery operated portable devices, and Robotics. Hall Sensors Power Management VDD VSS AS5055 Cordic EN_INT/ INT/ SPI Interface VDDp Wire MOSI MISO SCK SS/ mode 1 - 23 AS5055 Datasheet - Contents Contents 1 General Description 1 2 Key 1 3 1 4 Pin Assignments 3 Pin 3 5 Absolute Maximum Ratings 4 6 Electrical 5 Operating 5 System Parameters 5 DC/AC 6 7 Detailed 7 Operating Modes 7 Power Supply 7 Reading an Angle 8 Low Power Mode 8 Interrupt Chaining 8 SPI Communication 9 Command Package 9 Read Package Value Read from AS5055 9 Write Data Package Value Written to AS5055 10 Register 10 SPI Interface 11 8 Application Information 15 SPI 15 SPI Interface Signals 4-Wire Mode, Wire_mode = 15 SPI Timing 16 SPI Connection to the Host µC 17 Placement of the Magnet 19 9 Package Drawings and Markings 20 10 Ordering 22 2 - 23 AS5055 Datasheet - Pin Assignments 4 Pin Assignments Figure Pin Assignments Top View Wire_mode INT/ Test 16 15 14 13 MOSI 1 12 VDD MISO 2 11 VDDp Epad SCK 3 10 En_INT/ SS/ 4 9 Test_coil Pin Descriptions Table Pin Descriptions Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 Pin Name MOSI MISO SCK SS/ tb0 tb1 tb2 tb3 Test coil En_INT/ VDDp VDD VSS Wire_mode INT/ Test Epad Pin Type Digital input SPI bus data input Digital output, tri-state buffer SPI bus data output Digital input Schmitt trigger SPI Clock Schmitt trigger Digital input SPI Slave Select, active LOW Analog I/O Test pin, leave unconnected Supply Test pin, connect to VSS Digital input Enable / disable Interrupt Peripheral power supply, 1.8V ~ VDD Datasheet - Ordering Information 10 Ordering Information The devices are available as the standard products shown in Table Table Ordering Information Ordering Code AS5055 EQFT Description 12-bit low power magnetic rotary encoder Delivery Form Tape & Reel Package 16-pin QFN 4x4x0.85 mm Note All products are RoHS compliant and austriamicrosystems green. Buy our products or get free samples online at ICdirect: Technical Support is available at For further information and requests, please contact us mailto or find your local distributor at 22 - 23 AS5055 Datasheet - Copyrights Copyrights Copyright 1997-2012, austriamicrosystems AG, Tobelbaderstrasse 30, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. All products and companies mentioned are trademarks or registered trademarks of their respective companies. Disclaimer Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. austriamicrosystems AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. austriamicrosystems AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with austriamicrosystems AG for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by austriamicrosystems AG for each application. For shipments of less than 100 parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location. The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However, austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems AG rendering of technical or other services. Contact Information Headquarters austriamicrosystems AG Tobelbaderstrasse 30 A-8141 Unterpremstaetten, Austria Tel +43 0 3136 500 0 Fax +43 0 3136 525 01 For Sales Offices, Distributors and Representatives, please visit: 23 - 23 |
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