IC-SM5L linear amr sensor (5 mm) rev b2, page 1/ 7 features ? magneto resistive position sensor based on the amr effect ? strong ?eld sensor for 5 mm n/s pole pitch ? high interpolation due to a sine signal with few harmonics ? low saturation ?eld strength ? high amplitude consistency with changes in distance ? resistant to strong magnetic ?elds ? not sensitive to external homogenous magnetic ?elds ? small smt capable package applications ? linear position sensing ? length measuring systems ? off-axis hollow shaft rotary encoders packages lga sm2c 7.6 mm x 2.8 mm x 1.8 mm rohs compliant block diagram copyright ? 2006, 2014 ic-haus http://www.ichaus.com dra_sm2c-sm5l_a_pack_2, 3:1
IC-SM5L linear amr sensor (5 mm) rev b2, page 2/ 7 description IC-SM5L is a linear position sensor which operates on the amr effect (anisotropic magneto resistance) and has been designed to work with magnetic scales which have a n/s pole pitch of 5 mm. when the sensor is moved along a magnetic scale with a n/s pole pitch of 5 mm the two wheatstone bridges generate differential sinusoidal output volt- ages (psin - nsin) and (pcos - ncos) phase- shifted at 90. one sine/cosine cycle averaged us- ing a pair of n/s poles is thus produced for a pole width. the absolute magnetic ?eld strength must be large enough for the sensor to go into saturation and for the magnetization of IC-SM5Ls resistor stripes to assume the direction of the outer magnetic ?elds. the amplitudes of the differential output voltages are largely independent of the magnetic ?eld strength and thus not sensitive to changes in distance. IC-SM5L is resistant to strong magnetic ?elds and not sensitive to external homogenous magnetic ?elds. packaging information pin configuration pin functions no. name function 1 pcos noninverted cosine output 2 ncos inverted cosine output 3 vcc supply voltage 4 gnd ground 5 psin noninverted sine output 6 nsin inverted sine output ic top marking: = assembly code (subject to changes). top view bottom view 1 6 5 4 3 2 dra_sm2c-sm5l_a_pack_3, 8:1 platzhalter fr geh?use beschriftung: procuct-code assembly-code date-code lage und anzahl bei mb erfragen! 25.04.2014, hms
IC-SM5L linear amr sensor (5 mm) rev b2, page 3/ 7 package dimensions 7.60 2.80 top 0.70 2 5x1.27 0.435x45 bottom 1.80 0.30 0.96 side r2 0.30 0.10 a note 1) a 2 0.70 5x1.27 recommended pcb-footprint dra_sm2c-sm5l_a_pack_1, 10:1 note 1): - caution: do not touch exposed sensor edge. - sensor edge can be set back or overhang by up to 0.05 mm vs. substrate egde. all dimensions given in mm. general tolerances according to iso-2768-mk position tolerance of sensor pattern: 0.20 mm / 1 (with respect to backside pads).
IC-SM5L linear amr sensor (5 mm) rev b2, page 4/ 7 absolute maximum ratings these ratings do not imply operating conditions; functional operation is not guaranteed. beyond these ratings device damage may occur. item symbol parameter conditions unit no. min. max. g001 v() voltage at vb -10 10 v g002 v() voltage at psin, nsin, pcos, ncos -10 10 v g003 i() current in vb -10 10 ma g004 i() current in psin, nsin, pcos, ncos -10 10 ma g005 tj junction temperature -40 125 c g006 ts chip storage temperature -40 125 c thermal data operating conditions: vb = 5v 10 % item symbol parameter conditions unit no. min. typ. max. t01 ta operating ambient temperature range package lga sm2c (extended temperature range of -40 to 125 c available on request) -20 90 c t02 ts storage temperature range package lga sm2c -30 110 c t03 tl soldering peak temperature package lga sm2c t pk < 20 s, convection re?ow 260 c t pk < 20 s, vapour phase 230 c tol (time on label) 8 h; please refer to customer information ?le no. 7 for details all voltages are referenced to ground unless otherwise stated. all currents ?owing into the device pins are positive; all currents ?owing out of the device pins are negative.
IC-SM5L linear amr sensor (5 mm) rev b2, page 5/ 7 electrical characteristics operating conditions: vb = 5 v 10 %, vcos = 5 v 10 %, tj = -40. . . 125 c, |hext| > 25 ka/m at the bottom edge of the sensor, unless otherwise noted item symbol parameter conditions unit no. min. typ. max. total device 001 vb permissible supply voltage vsin, vcos vb = vsin = vcos -10 10 v 002 i(vb) supply current in vsin, vcos psin, nsin, pcos, ncos open vsin connected to vcos 5 10 ma 003 r() sensor resistance of one (sine and cosine bridge) vsin connected to vcos, tj = 25 c 1 1.5 2 k
004 tc(r) bridge resistance temperature coef?cient 0.29 0.33 0.37 %/k 005 vpk amplitude of differential output voltages 8 20 mv/v 006 tc(vpk) amplitude temperature coef?cient -0.37 -0.33 -0.29 %/k 007 vos diff. output offset voltage hext = 0 ka/m at the bottom edge of the sensor -3 3 mv/v 008 tc(vos) offset voltage temperature coef?cient -3 3 v/v/k 009 vrel relative change in amplitude distance bottom edge of the sensor to the mag- netic scale: 0 ... 2.5 mm -5 5 % 010 aaabs absolute angle accuracy without offset voltage, distance bottom edge of the sensor to the magnetic scale: 1 mm -1 1 deg application information IC-SM5L is placed vertically above a magnetic scale with an equal distribution of n/s pole pairs. figure 1: placement of the IC-SM5L to a magnetic scale
IC-SM5L linear amr sensor (5 mm) rev b2, page 6/ 7 application information: handling figure 2: handling instruction: not ok. figure 3: handling instruction: ok. revision history rel rel.date chapter modi?cation page b1 14-07-04 datasheet replaces former IC-SM5L datasheet release a3 and package datasheet lga sm2c release a2. all rel rel.date chapter modi?cation page b2 14-10-14 all package figures updated 1 - 3 ic-haus expressly reserves the right to change its products and/or speci?cations. an info letter gives details as to any amendments and additions made to the relevant current speci?cations on our internet website www.ichaus.de/infoletter ; this letter is generated automatically and shall be sent to registered users by email. copying C even as an excerpt C is only permitted with ic-haus approval in writing and precise reference to source. ic-haus does not warrant the accuracy, completeness or timeliness of the speci?cation and does not assume liability for any errors or omissions in these materials. the data speci?ed is intended solely for the purpose of product description. no representations or warranties, either express or implied, of merchantability, ?tness for a particular purpose or of any other nature are made hereunder with respect to information/speci?cation or the products to which information refers and no guarantee with respect to compliance to the intended use is given. in particular, this also applies to the stated possible applications or areas of applications of the product. ic-haus products are not designed for and must not be used in connection with any applications where the failure of such products would reasonably be expected to result in signi?cant personal injury or death (safety-critical applications) without ic-haus speci?c written consent. safety-critical applications include, without limitation, life support devices and systems. ic-haus products are not designed nor intended for use in military or aerospace applications or environments or in automotive applications unless speci?cally designated for such use by ic-haus. ic-haus conveys no patent, copyright, mask work right or other trade mark right to this product. ic-haus assumes no liability for any patent and/or other trade mark rights of a third party resulting from processing or handling of the product and/or any other use of the product.
IC-SM5L linear amr sensor (5 mm) rev b2, page 7/ 7 ordering information type package options order designation IC-SM5L 6-pin lga sm2c, 7.6 mm x 2.8 mm, thickness 1.8 mm rohs compliant IC-SM5L lga sm2c for technical support, information about prices and terms of delivery please contact: ic-haus gmbh tel.: +49 (0) 61 35 - 92 92 - 0 am kuemmerling 18 fax: +49 (0) 61 35 - 92 92 - 192 d-55294 bodenheim web: http://www.ichaus.com germany e-mail: sales@ichaus.com appointed local distributors: http://www.ichaus.com/sales_partners
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