iC-SM5L LINEAR AMR SENSOR (5 mm) Rev B2, Page 1/7 FEATURES APPLICATIONS ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ Linear position sensing ♦ Length measuring systems ♦ Off-axis hollow shaft rotary encoders Magneto resistive position sensor based on the AMR effect Strong field sensor for 5 mm N/S pole pitch High interpolation due to a sine signal with few harmonics Low saturation field strength High amplitude consistency with changes in distance Resistant to strong magnetic fields Not sensitive to external homogenous magnetic fields Small SMT capable package PACKAGES dra_sm2c-sm5l_a_pack_2, 3:1 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 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. width. The absolute magnetic field strength must be large enough for the sensor to go into saturation and for the magnetization of iC-SM5L’s resistor stripes to assume the direction of the outer magnetic fields. 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 voltages (PSIN - NSIN) and (PCOS - NCOS) phaseshifted at 90°. One sine/cosine cycle averaged using a pair of N/S poles is thus produced for a pole The amplitudes of the differential output voltages are largely independent of the magnetic field strength and thus not sensitive to changes in distance. iC-SM5L is resistant to strong magnetic fields and not sensitive to external homogenous magnetic fields. PACKAGING INFORMATION PIN CONFIGURATION 1 2 PIN FUNCTIONS No. Name Function BOTTOM VIEW 3 4 5 6 TOP VIEW 1 2 3 4 5 6 PCOS NCOS VCC GND PSIN NSIN Platzhalter für Gehäuse Beschriftung: Procuct-Code Assembly-Code Date-Code Lage und Anzahl bei Mb erfragen! 25.04.2014, HMS <A-CODE> dra_sm2c-sm5l_a_pack_3, 8:1 Noninverted Cosine Output Inverted Cosine Output Supply Voltage Ground Noninverted Sine Output Inverted Sine Output IC top marking: <A-CODE> = assembly code (subject to changes). <P-CODE> <D-CODE> iC-SM5L LINEAR AMR SENSOR (5 mm) Rev B2, Page 3/7 PACKAGE DIMENSIONS 0.435x45° 2 BOTTOM R2 0.70 SIDE A 2.80 1.80 ±0.30 0.10 A Note 1) TOP 2 0.96 0 ±0.3 5x1.27 RECOMMENDED PCB-FOOTPRINT 7.60 5x1.27 0.70 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). dra_sm2c-sm5l_a_pack_1, 10:1 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 No. Symbol Parameter Conditions Unit Min. Max. G001 V() Voltage at VB -10 10 G002 V() Voltage at PSIN, NSIN, PCOS, NCOS -10 10 V 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 No. Symbol Parameter Conditions Unit 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 T03 Ts Tl Storage Temperature Range package LGA SM2C -30 110 °C Soldering Peak Temperature package LGA SM2C 260 230 °C °C tpk < 20 s, convection reflow tpk < 20 s, vapour phase TOL (time on label) 8 h; please refer to customer information file No. 7 for details All voltages are referenced to ground unless otherwise stated. All currents flowing into the device pins are positive; all currents flowing 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 No. Symbol Parameter Conditions Unit Min. Typ. Max. Total Device 001 VB Permissible Supply Voltage VSIN, VB = VSIN = VCOS 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 kΩ 004 TC(R) Bridge Resistance Temperature Coefficient 0.29 0.33 0.37 %/K 005 Vpk Amplitude of Differential Output Voltages 8 20 mV/V 006 TC(Vpk) Amplitude Temperature Coefficient -0.29 %/K 007 Vos Diff. Output Offset Voltage -3 3 mV/V 008 TC(Vos) Offset Voltage Temperature Coefficient -3 3 µV/V/K 009 Vrel Relative Change in Amplitude distance bottom edge of the sensor to the magnetic 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 -0.37 Hext = 0 kA/m at the bottom edge of the sensor -0.33 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 B1 14-07-04 Rel Rel.Date B2 14-10-14 Chapter Modification Page Datasheet replaces former iC-SM5L datasheet release A3 and package datasheet LGA all SM2C release A2. Chapter Modification Page All package Figures updated 1-3 iC-Haus expressly reserves the right to change its products and/or specifications. An info letter gives details as to any amendments and additions made to the relevant current specifications on our internet website www.ichaus.de/infoletter; this letter is generated automatically and shall be sent to registered users by email. Copying – even as an excerpt – 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 specification and does not assume liability for any errors or omissions in these materials. The data specified is intended solely for the purpose of product description. No representations or warranties, either express or implied, of merchantability, fitness for a particular purpose or of any other nature are made hereunder with respect to information/specification 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 significant personal injury or death (Safety-Critical Applications) without iC-Haus’ specific 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 specifically 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 iC-SM5L 6-pin LGA SM2C, 7.6 mm x 2.8 mm, thickness 1.8 mm RoHS compliant Options Order Designation iC-SM5L LGA SM2C For technical support, information about prices and terms of delivery please contact: iC-Haus GmbH Am Kuemmerling 18 D-55294 Bodenheim GERMANY Tel.: +49 (0) 61 35 - 92 92 - 0 Fax: +49 (0) 61 35 - 92 92 - 192 Web: http://www.ichaus.com E-Mail: [email protected] Appointed local distributors: http://www.ichaus.com/sales_partners