IC-SM2L linear amr sensor (2 mm) rev c1, page 1/ 8 features magneto resistive position sensor based on the amr effect strong feld sensor for 2 mm n/s pole pitch one sine/cosine cycle per pole width (averaged using a pair of n/s poles) high interpolation due to a sine signal with few harmonics low saturation feld strength high amplitude consistency with changes in distance resistant to strong magnetic felds not sensitive to external homogenous magnetic felds 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-sm2l_b_pack_2, 3:1
IC-SM2L linear amr sensor (2 mm) rev c1, page 2/ 8 description IC-SM2L 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 2 mm. when the sensor is moved along a magnetic scale with a n/s pole pitch of 2 mm the two wheat- stone bridges generate differential sinusoidal out- put voltages (psin - nsin) and (pcos - ncos) phase-shifted at 90 . one sine/cosine cycle averaged using a pair of n/s poles is thus produced for a pole width. the absolute magnetic feld strength must be large enough for the sensor to go into saturation and for the magnetization of IC-SM2Ls resistor stripes to assume the direction of the outer magnetic felds. the amplitudes of the differential output voltages are largely independent of the magnetic feld strength and thus not sensitive to changes in distance. IC-SM2L is resistant to strong magnetic felds and not sensitive to external homogenous magnetic felds. packaging information pin configuration pin functions no. name function 1 ncos inverted cosine output 2 pcos noninverted cosine output 3 vcc supply voltage 4 gnd ground 5 nsin inverted sine output 6 psin noninverted sine output ic top marking: = assembly code (subject to changes). top view bottom view 1 6 5 4 3 2 dra_sm2c-sm2l_b_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-SM2L linear amr sensor (2 mm) rev c1, page 3/ 8 package dimensions 7.60 2.80 top 0.70 2 5x1.27 0.435x45 bottom 0.96 1.80 0.30 side r2 0.30 0.10 a note 1) a 2 0.70 5x1.27 recommended pcb-footprint dra_sm2c-sm2l_b_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-SM2L linear amr sensor (2 mm) rev c1, page 4/ 8 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 -11 11 ma g004 i() current in psin, nsin, pcos, ncos -11 11 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 - standard temperature range -20 90 c - option et: extended temperature range -40 125 c t02 ts storage temperature range package lga sm2c -40 125 c t03 tl soldering peak temperature package lga sm2c t pk < 20 s, convection refow 260 c t pk < 20 s, vapour phase 230 c tol (time on label) 8 h; please refer to customer information fle no. 7 for details all voltages are referenced to ground unless otherwise stated. all currents fowing into the device pins are positive; all currents fowing out of the device pins are negative.
IC-SM2L linear amr sensor (2 mm) rev c1, page 5/ 8 electrical characteristics operating conditions: vb = 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 vb -8 8 v 002 i() supply current in vb tj = -40. . . 90 c 3.4 7.0 ma tj = -40. . . 125 c 2.5 7.0 ma psin, nsin, pcos, ncos open 003 r() bridge resistance of one sine/cosine bridge tj = 25 c 1.8 2.6 k ? 004 tc(r) bridge resistance temperature coeffcient 0.27 0.32 0.37 %/k 005 vpk amplitude of differential output voltages 8 20 mv/v 006 tc(vpk) amplitude temperature coeffcient -0.4 -0.25 %/k 007 vos diff. output offset voltage hext = 0 ka/m at the bottom edge of the sensor -2 2 mv/v 008 tc(vos) offset voltage temperature coeffcient -3 3 v/v/k 009 vrel relative change in amplitude distance bottom edge of the sensor to the magnetic scale: 0 ... 1.5 mm -5 5 % 010 aaabs absolute angle accuracy without offset voltage, distance bottom edge of the sensor to the magnetic scale: 0.5 mm -1 1 deg application information IC-SM2L is placed vertically above a magnetic scale with an equal distribution of n/s pole pairs. figure 1: placement of the IC-SM2L to a magnetic scale
IC-SM2L linear amr sensor (2 mm) rev c1, page 6/ 8 application information: handling figure 2: handling instruction: not ok. figure 3: handling instruction: ok.
IC-SM2L linear amr sensor (2 mm) rev c1, page 7/ 8 revision history rel. rel. date ? chapter modifcation page b1 14-07-04 datasheet replaces former IC-SM2L datasheet release a2 and package datasheet lga sm2c release a3. all rel. rel. date ? chapter modifcation page b2 14-10-14 all package figures updated 1 - 3 rel. rel. date ? chapter modifcation page c1 2015-11-17 thermal data extended operating temperature as available option 4 ordering information ordering code for extended operating temperature range 8 electrical characteristics item 002 expanded for standard and extended temperatur range 5 ic-haus expressly reserves the right to change its products and/or specifcations. an info letter gives details as to any amendments and additions made to the relevant current specifcations on our internet website www.ichaus.com/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 specifcation and does not assume liability for any errors or omissions in these materials. the data specifed is intended solely for the purpose of product description. no representations or warranties, either express or implied, of merchantability, ftness for a particular purpose or of any other nature are made hereunder with respect to information/specifcation 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 signifcant personal injury or death (safety-critical applications) without ic-haus specifc 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 specifcally 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. ? release date format: yyyy-mm-dd
IC-SM2L linear amr sensor (2 mm) rev c1, page 8/ 8 ordering information type package options order designation IC-SM2L 6-pin lga sm2c, 7.6 mm x 2.8 mm, thickness 1.8 mm rohs compliant standard IC-SM2L lga sm2c extended operating temperatur range IC-SM2L lga sm2c et -40/125 please send your purchase orders to our order handling team: fax: +49 (0) 61 35 - 92 92 - 692 e-mail: dispo@ichaus.com 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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