AS5140H-ASSU

AS5140H-ASSU Datasheet

AS5140H

Part	Datasheet
AS5140H-ASSU	AS5140H-ASSU (pdf)

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Data Sheet AS5140H 10-Bit 360º Programmable Magnetic Rotary Encoder For High Ambient Temperatures 1 General Description 2 Key Features The AS5140H is a contactless magnetic rotary encoder for accurate angular measurement over a full turn of 360º and over an extended ambient temperature range of -40ºC to +150ºC. 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. An internal voltage regulator allows the AS5140H to operate at either 3.3V or 5V supplies. The AS5140H is pin-compatible to the AS5040 however it uses lowvoltage OTP programming cells with additional programming options. Contactless high resolution rotational position encoding over a full turn of 360º Two digital 10-bit absolute outputs Serial interface and Pulse width modulated PWM output Three incremental output modes Quadrature A/B and Index output signal, Step / Direction and Index output signal, 3-phase commutation for brushless DC motors User programmable zero / index position Failure detection mode for magnet placement monitoring and loss of power supply Rotational speeds up to rpm Pushbutton functionality detects movement of magnet in Z-axis Serial read-out of multiple interconnected AS5140H devices using Daisy Chain mode Fully automotive qualified to AEC-Q100, grade 0 Wide ambient temperature range -40ºC to +150ºC 3 Applications Figure AS5140H IC Block Diagram The AS5140H is an ideal solution for automotive applications like engine compartment sensors, transmission gearbox encoder, throttle valve position control and for industrial applications like rotary sensors in high temperature environment. VDD5V VDDV3V LDO 3.3V Hall Array Cos & Frontend Amplifier AS5140H OTP Register Programming Parameters PWM Interface Absolute Interface Incremental Interface MagINCn MagDECn PWM_LSB DO CSn CLK A_LSB_U B_Dir_V Index_W Prog 1 - 37 AS5140H Data Sheet - Contents Contents Recommended PCB Footprint 34 10 Ordering Information 36 3 - 37 AS5140H Data Sheet - Pin Assignments 4 Pin Assignments Figure Pin Assignments Top View MagINCn MagDECn A_LSB_U B_Dir_V Index_W Prog AS5140H VDD5V VDD3V3 PWM_LSB Pin Descriptions The following table shows the description of each pin of the standard SSOP16 package Shrink Small Outline Package, 16 leads, body size 5.3mm x 6.2mmm See Figure Table Pin Descriptions Pin Name MagINCn Pin Number 1 Magnet Field Magnitude Increase. Active low. Indicates a distance reduction between the magnet and the device surface. MagDECn Magnet Field Magnitude Decrease. Active low. Indicates a distance increase between the device and the magnet. A_LSB_U B_Dir_V Mode1.x Quadrature A channel Mode2.x Least Significant Bit Mode3.x U signal phase1 Mode1.x Quadrature B channel quarter period shift to channel A Mode2.x Direction of Rotation Mode3.x V signal phase2 NC Index_ W For internal use. Must be left unconnected. Mode1.x and Mode2.x Index signal indicates the absolute zero position Mode3.x W signal phase3 Negative Supply Voltage GND . Prog OTP Programming Input and Data Input for Daisy Chain mode. Internal pull-down resistor ~74kΩ . May be connected to VSS if programming is not used. Data Output of Synchronous Serial Interface. SSI Clock Input. Schmitt-Trigger input. Chip Select. Active low Schmitt-Trigger input, internal pull-up resistor ~50kΩ connect to VSS in incremental mode see Incremental Power-up Lock Option on page 16 Data Sheet - Ordering Information 10 Ordering Information The devices are available as the standard products shown in Table Table Ordering Information Ordering Code AS5140HASSU AS5140HASST Delivery Form Tubes Tape & Reel Note All products are RoHS compliant and Pb-free. Buy our products or get free samples online at ICdirect: For further information and requests, please contact us or find your local distributor at Package SSOP-16 SSOP-16 36 - 37 AS5140H Data Sheet - Copyrights Copyrights Copyright 1997-2009, 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: 37 - 37

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Data Sheet

AS5140H
10-Bit 360º Programmable Magnetic Rotary Encoder For High Ambient Temperatures
1 General Description
2 Key Features

The AS5140H is a contactless magnetic rotary encoder for accurate angular measurement over a full turn of 360º and over an extended ambient temperature range of -40ºC to +150ºC.

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.

An internal voltage regulator allows the AS5140H to operate at either 3.3V or 5V supplies.

The AS5140H is pin-compatible to the AS5040 however it uses lowvoltage OTP programming cells with additional programming options.

Contactless high resolution rotational position encoding over a full turn of 360º

Two digital 10-bit absolute outputs Serial interface and Pulse width modulated PWM output

Three incremental output modes Quadrature A/B and Index output signal, Step / Direction and Index output signal, 3-phase commutation for brushless DC motors

User programmable zero / index position

Failure detection mode for magnet placement monitoring and loss of power supply

Rotational speeds up to rpm

Pushbutton functionality detects movement of magnet in Z-axis

Serial read-out of multiple interconnected AS5140H devices using Daisy Chain mode

Fully automotive qualified to AEC-Q100, grade 0

Wide ambient temperature range -40ºC to +150ºC
3 Applications

Figure AS5140H IC Block Diagram

The AS5140H is an ideal solution for automotive applications like engine compartment sensors, transmission gearbox encoder, throttle valve position control and for industrial applications like rotary sensors in high temperature environment.

VDD5V

VDDV3V

LDO 3.3V

Hall Array Cos &

Frontend Amplifier

AS5140H

OTP Register

Programming Parameters

PWM Interface

Absolute Interface

Incremental Interface

MagINCn MagDECn PWM_LSB

DO CSn CLK

A_LSB_U B_Dir_V Index_W Prog
1 - 37

AS5140H

Data Sheet - Contents

Contents
Recommended PCB Footprint 34 10 Ordering Information 36
3 - 37

AS5140H

Data Sheet - Pin Assignments
4 Pin Assignments

Figure Pin Assignments Top View

MagINCn

MagDECn

A_LSB_U

B_Dir_V

Index_W

Prog

AS5140H

VDD5V

VDD3V3

PWM_LSB

Pin Descriptions

The following table shows the description of each pin of the standard SSOP16 package Shrink Small Outline Package, 16 leads, body size 5.3mm x 6.2mmm See Figure

Table Pin Descriptions

Pin Name MagINCn

Pin Number 1

Magnet Field Magnitude Increase. Active low. Indicates a distance reduction between the magnet and the device surface.

MagDECn

Magnet Field Magnitude Decrease. Active low. Indicates a distance increase between the device and the magnet.

A_LSB_U B_Dir_V

Mode1.x Quadrature A channel

Mode2.x Least Significant Bit

Mode3.x U signal phase1

Mode1.x Quadrature B channel quarter period shift to channel A

Mode2.x Direction of Rotation

Mode3.x V signal phase2

NC Index_ W

For internal use. Must be left unconnected.

Mode1.x and Mode2.x Index signal indicates the absolute zero position

Mode3.x W signal phase3

Negative Supply Voltage GND .

Prog

OTP Programming Input and Data Input for Daisy Chain mode. Internal pull-down resistor ~74kΩ . May be connected to VSS if programming is not used.

Data Output of Synchronous Serial Interface.

SSI Clock Input. Schmitt-Trigger input.

Chip Select. Active low Schmitt-Trigger input, internal pull-up resistor ~50kΩ connect to VSS in incremental mode see Incremental Power-up Lock Option on page 16
Data Sheet - Ordering Information
10 Ordering Information

The devices are available as the standard products shown in Table
Table Ordering Information
Ordering Code AS5140HASSU

AS5140HASST

Delivery Form Tubes

Tape & Reel

Note All products are RoHS compliant and Pb-free. Buy our products or get free samples online at ICdirect:

For further information and requests, please contact us or find your local distributor at

Package SSOP-16 SSOP-16
36 - 37

AS5140H

Data Sheet - Copyrights

Copyrights

Copyright 1997-2009, 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:
37 - 37

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Datasheet ID: AS5140H-ASSU 519750