KMXP SERIES Anisotropic Magneto-Resistive (AMR) Linear Position Sensors

Transcription

1 SERIES Aisotropic Mageto-Resistive (AMR) Liear Positio Sesors Positio sesors play a icreasigly importat role i may idustrial, robotic ad medical applicatios. Advaced applicatios i harsh eviromets eed sesors that perform well, eve whe exposed to oil, dirt ad dust. The TE Coectivity KMXP positio sesor is the right choice to meet those eeds thaks to its Mageto Resistive techology ad available form factors. The KMXP sesor provides greater precisio tha commoly used Hall sesors ad is desiged to provide reliable ad accurate measuremets i harsh eviromets icludig high temperatures. The sesor measurig priciple is based o the aisotropic mageto resistace effect (AMR effect). The sesors are offered i two differet DFN packages for multiple orietatio optios. These packages ca be easily itegrated to almost ay automated assembly process. FEATURES High Resolutio ad high precisio Mageto Resistive (MR) sesor with cotactless measuremet which provides accuracy of µm i rages betwee 1 5 mm. Easy Assembly DFN package ideal for ay PCB assembly processes. Tape & Reel packagig for easy itegratio Desig Freedom Perpedicular or flat solderig versios ad a small sesor wall thickess for large applicatio air gaps. Superior Performace Up to 150 C, EMC proof i ay dirty eviromet ad isesitive to dirt, oil or dust. APPLICATIONS Cotactless liear or agular positio measuremet i applicatios like: Idustrial machiery like sawig or drillig equipmet Medical high precisio mechaical cotrols like bed cotrol, advaced prosthesis steerig, precisio catheters, X-ray equipmet, or syrige pumps Robotics i idustrial automatio SENSOR SOLUTIONS /// KMXP Liear Positio Sesor 05/2018 Page 1

2 MEASUREMENT PRINCIPLE Figure 1: priciple fuctio of the sesor The KMXP sesors cosist of two mageto resistive Wheatstoe bridges, whose resistors are placed i a such way that the characteristic magetic field distributio of a magetic scale with matchig pole pitch produces a sie ad a cosie sigal output whe the sesor is moved alog the scale. Figure 2: typical applicatio of a PCB mouted KMXP sesor movig relative to a magetic pole ad the correspodig output sigal voltage depedig o sesor positio SENSOR SOLUTIONS /// KMXP Liear Positio Sesor 05/2018 Page 2

3 PERFORMANCE SPECIFICATIONS PARAMETER SYMBOL COND. TYPE MIN TYP MAX UNIT 1. Operatig Limits Max. supply voltage Vcc,max all 10 V Max. curret (both bridges) Icc,max KMXP 1000 KMXP 2000/5000 Operatig temperature Top all C Storage temperature Tst all C 2. Sesor Specificatios (T=25 C) Supply voltage Vcc all 5 V Pole pitch 1) Air gap package frot magetic scale 2) Resistace (both bridges) p D Rb KMXP 1000 KMXP 2000 KMXP 5000 KMXP 1000 KMXP 2000 KMXP 5000 KMXP 1000 KMXP 2000/ Output sigal rage V/Vcc A, B all mv/v Offset voltage V off A, B all mv/v 3. Sesor Specificatios TC of amplitude TCSV A, C All %/K TC of resistace TCBR A, C All %/K TC of offset TCVoff A, C all µv/v/k = 1;2 (bridge umber); Stress above oe or more of the limitig values may cause permaet damage to the device. Exposure to limitig values for exteded periods may affect device reliability. 1) Other pole pitches o request 2) Typical values for covetioal magetic scales. Air gap for maximum accuracy depeds o the used scale. ma µm mm SENSOR SOLUTIONS /// KMXP Liear Positio Sesor 05/2018 Page 3

4 MEASUREMENT SET UP CONDITIONS PARAMETER SYMBOL UNIT CONDITION A. Set Up Coditios Ambiet temperature T C T = 25 C (uless otherwise oted) Supply voltage V cc V Vcc = 5 V Applied magetic field H ka/m H > 10 ka/m B. Sesor Specificatios (T=25 C, 360 tur, H=25 ka/m, Vomax>0, Vomi<0) Output sigal rage V / Vcc mv/v V / Vcc = (V max V mi) / Vcc Sigal offset Voff mv/v Voff = (V max + V mi) / Vcc C. Sesor Specificatios (T=-25 C, +125 C) Ambiet temperatures T C T1 = -25 C, T0 = +25 C, T2 = +125 C TC of amplitude TCSV %/K TC of resistace TCBR %/K TC of offset TCVoff µv/(vk) = 1;2 (bridge umber) TCV ( T TCR ( T TCVoff 2 2 V 1 Vcc T ) 1 1 R T ) 1 2 V ( T2) Vcc V ( T1) V cc ( T1) 100% ( T2) R( T1) 100% R ( T ) Voff( T2) Voff( T1) ( T T ) 1 1 BLOCK DIAGRAM c. -V2 -V1 GND Vcc +V1 +V2. c. Vcc2 -V2 -V1 GND Vcc1 +V1 +V2. c. Figure 3a: KMXP 1000/2000 Figure 3b: KMXP 5000 SENSOR SOLUTIONS /// KMXP Liear Positio Sesor 05/2018 Page 4

5 EXAMPLE OF PRINTED CIRCUIT BOARD ASSEMBLY Figure 4: Flat mouted KMXP o a PCB PIN ASSIGNMENT The pi assigmet is pi compatible for all KMXP types ad allows a commo PCB layout for all types: Pi KMXP5000 Vcc2 -V2 -V1 GND Vcc1 +V1 +V2 N/C N/C N/C N/C N/C KMXP2000 N/C -V2 -V1 GND Vcc +V1 +V2 N/C N/C N/C N/C N/C KMXP1000 N/C -V2 -V1 GND Vcc +V1 +V2 N/C N/C N/C N/C N/C SENSOR SOLUTIONS /// KMXP Liear Positio Sesor 05/2018 Page 5

6 PHYSICAL DIMENSIONS Fig. 5: Physical dimesios of sesor package Reflow profile for this package accordig to IPC/JEDEC J-STD-020 Revisio D.1 (March 2008). SENSOR SOLUTIONS /// KMXP Liear Positio Sesor 05/2018 Page 6

7 APPLICATION EXAMPLE Fig. 6: Exemplary hardware cofiguratio for the usage with a covetioal microcotroller usig a Aalog Devices AD8605 amplifier for the preprocessig of the sesor sigals. SENSOR SOLUTIONS /// KMXP Liear Positio Sesor 05/2018 Page 7

8 ORDERING CODES Part Number Part Descriptio Pole Pitch G-MRCO-051 KMXP1000 MLS 1MM PITCH DFN 1 mm G-MRCO-050 KMXP2000 MLS 2MM PITCH DFN 2 mm G-MRCO-052 KMXP5000 MLS 5MM PITCH DFN 5 mm G-MRCO-055 KMXP1002 1MM PITCH VERTICAL 1 mm G-MRCO-056 KMXP2002 2MM PITCH VERTICAL 2 mm G-MRCO-057 KMXP5002 5MM PITCH VERTICAL 5 mm NORTH AMERICA Measuremet Specialties, Ic., a TE Coectivity Compay Phoe: customercare.hmpt@te.com EUROPE MEAS Deutschlad GmbH (Europe) a TE Coectivity Compay Phoe: customercare.dtmd@te.com ASIA Measuremet Specialties (Chia), Ltd., a TE Coectivity Compay Phoe: customercare.shz@te.com TE.com/sesors Measuremet Specialties, TE Coectivity, TE Coectivity (logo) ad EVERY CONNECTION COUNTS are trademarks. All other logos, products ad/or compay ames referred to herei might be trademarks of their respective owers. The iformatio give herei, icludig drawigs, illustratios ad schematics which are iteded for illustratio purposes oly, is believed to be reliable. However, TE Coectivity makes o warraties as to its accuracy or completeess ad disclaims ay liability i coectio with its use. TE Coectivity s obligatios shall oly be as set forth i TE Coectivity s Stadard Terms ad Coditios of Sale for this product ad i o case will TE Coectivity be liable for ay icidetal, idirect or cosequetial damages arisig out of the sale, resale, use or misuse of the product. Users of TE Coectivity products should make their ow evaluatio to determie the suitability of each such product for the specific applicatio TE Coectivity Ltd. family of compaies All Rights Reserved. SENSOR SOLUTIONS /// KMXP Liear Positio Sesor 05/2018 Page 8