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ic-pt 2610 6-ch. phased array opto encoder (26-1000) rev b3, page 1/ 11 features ? monolithic photodiode array with excellent signal matching ? very compact size for small encoders ? moderate track pitch for relaxed assembly tolerances ? low noise signal ampli?ers with high emi tolerance ? single-pin programming of 3 operating modes: analog, digital (1000 cpr), and x2 interpolated (2000 cpr) ? analog signals for alignment and resolution enhancement ? selectable index gating: 1 t, 0.5 t (b-gated), 0.25 t (ab-gated) ? complementary outputs: a, b, z and na, nb, nz ? up to 50,000 rpm at 1000 cpr (25,000 rpm at 2000 cpr) ? u, v, w commutation signals, analog and digital ? all outputs +/- 4 ma push-pull, current-limited and short-circuit-proof ? led power control with 40 ma high-side driver ? single 3.5 v to 5.5 v operation, low power consumption ? operating temperature range of -40 c to +110 c (+120 c) ? code disc available: pt15s 26-1000 (glass 1 mm) od ? 26.0 mm, id ? 11.6 mm, optical radius 11.0 mm, 1000 ppr and 4 ppr commutation (90) applications ? incremental encoder ? brushless dc motor commutation ? industrial drives packages optoqfn32-5x5 5 mm x 5 mm x 0.9 mm block diagram copyright ? 2011, 2013 ic-haus http://www.ichaus.com p r e l i m i n a r y p r e l i m i n a r y p o w e r c o n t r o l i c - p t p b p a n z u v o u t p u t c o m p a r a t i o n s i g n a l o u t p u t a n d w p z c o m m u t a t i o n q u a d r a t u r e p o w e r - o n r e s e t i n d e x n b n a l e d d 1 1 f c 1 + - r 1 4 7 + 3 . 5 . . 5 . 5 v t 1 c a w v t i p t i n u l e d p a n z p z n b p b n a s e l g n d v c c d 1 c 1 1 f 4 7 r 1
ic-pt 2610 6-ch. phased array opto encoder (26-1000) rev b3, page 2/ 11 description ic-pt 2610 is an optical sensor ic with integrated photosensors whose signals are converted into volt- ages by low-noise transimpedance ampli?ers. pre- cise voltage comparators with hysteresis are used to generate the digital signals, supplied to the output pins via differential +/- 4 ma push-pull drivers. the built-in led power control with its 40 ma driver stage permits a direct connection of the encoder led. regardless of aging or changes in temperature the received optical power is kept constant. selection input sel chooses for three different op- erating modes: regular a/b operation, a/b operation with 2-fold interpolation, or analog operation. with analog operation the ampli?ed signal voltages are available at the outputs for inspection and monitoring encoder assembly. typical applications of ic-pt devices are incremental encoders for motor feedback and commutation. to this end, device version ic-pt 2610 provides differ- ential a/b tracks and a differential index track, each consisting of multiple photo sensors. the layout of the signal ampli?ers is such that there is an excellent paired channel matching, eliminating the needs for signal calibration in most cases. additionally, three more tracks are provided to gener- ate motor commutation information for the u, v and w outputs, for instance with 90 degree phase shift to operate 4-phase brushless motors (period count and phase shift can be varied by the code disc applied). p r e l i m i n a r y p r e l i m i n a r y
ic-pt 2610 6-ch. phased array opto encoder (26-1000) rev b3, page 3/ 11 packaging information pad layout chip size 2.88 mm x 3.37 mm pad functions no. name function see pin con?guration. pin configuration oqfn32-5x5, oqfn32-5x5-3 (5 mm x 5 mm) pin functions no. name function 1 vcc +3.5..5.5 v supply voltage 2 led led controller, high-side current source output 3 pa push-pull output a+ / analog sin+ 1) 4 na push-pull output a- / analog sin- 5 pb push-pull output b+ / analog cos+ 6 nb push-pull output b- / analog cos- 7 pz push-pull output z+ / analog z+ 8 nz push-pull output z- / analog z- 9..16 n.c. 2) 17 sel op. mode selection input: lo = digital hi = x2 interpolated open = analog (alignment aid) 18 w push-pull output w / analog w 19 tin negative test current input 3) 20 v push-pull output v / analog v 21 tip positive test current input 3) 22 u push-pull output u / analog u 23 t1 index length selection input: lo = 0.5 t (b-gated), hi = 1 t (ungated/t-gated), open = 0.25 t (a and b-gated) 24 gnd ground 25..32 n.c. bp backside paddle 4) 1) capacitive pin loads must be avoided when using the analog output signals. 2) pin numbers marked n.c. are not in use. 3) the test pins tip and tin may remain unconnected. 4) the backside paddle may have a single link to gnd. a current ?ow across the paddle is not permissible. p r e l i m i n a r y p r e l i m i n a r y 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
ic-pt 2610 6-ch. phased array opto encoder (26-1000) rev b3, page 4/ 11 package dimensions all dimensions given in mm. maximum molding excess +20 m / -75 m versus surface of glass. maximum package thickness tolerance +/- 0.1 mm. p r e l i m i n a r y p r e l i m i n a r y 5 5 1.90 3.24 top 0.90 0.30 side 3.60 3.60 0.50 0.23 0.40 bottom 3.60 3.60 0.50 0.30 4.90 4.90 r 0.15 0.70 recommended pcb-footprint dra_pt33xx-oqfn32-2_pack_1, 10:1
ic-pt 2610 6-ch. phased array opto encoder (26-1000) rev b3, page 5/ 11 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 vcc voltage at vcc -0.3 6 v g002 i(vcc) current in vcc -20 20 ma g003 v() voltage at output pins pa, na, pb, nb, pz, nz, u, v, w -0.3 vcc + 0.3 v g004 i() current in output pins pa, na, pb, nb, pz, nz, u, v, w -20 20 ma g005 v() voltage at led -0.3 vcc + 0.3 v g006 i() current in led -120 20 ma g007 v() voltage at tip, tin, sel -0.3 vcc + 0.3 v g008 i() current in tip, tin, sel -20 20 ma g009 vd() esd susceptibility, all pins hbm, 100 pf discharged through 1.5 k
2 kv g010 tj junction temperature -40 150 c g011 ts chip storage temperature range -40 150 c thermal data item symbol parameter conditions unit no. min. typ. max. t01 ta operating ambient temperature range (extended range on request) -40 110 c t02 ts permissible storage temperature range -40 110 c t03 tpk soldering peak temperature tpk < 20 s, convection re?ow 245 c tpk < 20 s, vapor phase soldering 230 c msl 5a (max. ?oor live 24 h at 30 c and 60 % rh); 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. p r e l i m i n a r y p r e l i m i n a r y
ic-pt 2610 6-ch. phased array opto encoder (26-1000) rev b3, page 6/ 11 electrical characteristics operating conditions: vcc = 3.5...5.5 v, tj = -40...125 c, led = r = 740 nm, unless otherwise noted item symbol parameter conditions unit no. min. typ. max. total device 001 vcc permissible supply voltage 3.5 5.5 v 002 i(vcc) supply current in vcc no load, photocurrents within op. range 3 10 ma 003 vc()lo clamp-voltage lo at all pins i() = -4 ma, versus gnd -1.2 -0.3 v 004 vc()hi clamp-voltage hi at all pins i() = 4 ma 11 v 005 vc()hi clamp-voltage hi at led, pa, na, pb, nb, pz, nz, u, v, w i() = 4 ma, versus vcc 0.3 1.2 v 006 vc()hi clamp-voltage hi at sel, tip, tin i() = 4 ma, versus vcc 0.7 2.2 v photosensors 101 ar spectral application range se( ar) = 0.25 x s( )max 400 950 nm 102 pk peak sensitivity wavelength 680 nm 103 aph() radiant sensitive area pa, pb, na, nb (sum of segments) 0.069 mm 2 u, v, w (per segment) 0.084 mm 2 pz, nz (sum of segments) 0.058 mm 2 104 s( r) spectral sensitivity led = 740 nm 0.5 a/w led = 850 nm 0.3 a/w 106 e()mxpk permissible irradiance led = pk, vout() < vout()mx; pa, pb, na, nb 2.3 mw/ cm 2 u, v, w 1.3 mw/ cm 2 pz, nz 2.1 mw/ cm 2 photocurrent ampli?ers 201 iph() permissible photocurrent operating range 0 550 na 202 ()r photo sensitivity (light-to-voltage conversion ratio) for pa, pb, na, nb 0.1 0.3 0.5 v/w for pz, nz, u, v, w 0.2 0.4 0.6 v/w 203 z() equivalent transimpedance gain z = vout() / iph(), tj = 27 c; for pa, pb, na, nb 0.56 0.75 1 m
for pz, nz, u, v, w 0.66 1.0 1.36 m
204 tcz temperature coef?cient of transimpedance gain -0.12 %/c 205 z()pn transimpedance gain matching sel open, p vs. n path per diff. channel -0.2 0.2 % 206 vout() dark signal matching of a, b sel open, output vs. output -8 8 mv 207 vout() dark signal matching of u, v, w sel open, output vs. output -12 12 mv 208 vout() dark signal matching of a, b, z, u, v, w sel open, any output vs. any output -24 24 mv 209 vout()pn dark signal matching sel open, p vs. n path per diff. channel -2.5 2.5 mv 211 fc()hi cut-off frequency (-3 db) 400 500 khz analog outputs pa, na, pb, nb, pz, nz, u, v, w 301 vout()mx maximum output voltage illumination to e()mxpk 1.04 1.27 1.8 v 302 vout()d dark signal level load 100 k
vs. +2 v 640 770 985 mv 303 vout()acmx maximum signal level vout()acmx = vout()mx - vout()d 0.3 0.5 0.75 v 304 isc()hi short-circuit current hi sel open, load current to ground 100 1800 3000 a 305 isc()lo short-circuit current lo sel open, load current to ic 20 40 200 a 306 ri() internal output resistance f = 1 khz 250 750 2250
comparators 401 vt()hi upper comparator threshold iph()p x z()p > iph()n x z()n, 5 12 25 mv resp. iph()p x z()p > internal vref 402 vt()lo lower comparator threshold iph()p x z()p < iph()n x z()n, -25 -12 -5 mv resp. iph()p x z()p < internal vref 403 vt()hys comparator hysteresis vt()hys = vt()hi - vt()lo 10 24 50 mv p r e l i m i n a r y p r e l i m i n a r y
ic-pt 2610 6-ch. phased array opto encoder (26-1000) rev b3, page 7/ 11 electrical characteristics operating conditions: vcc = 3.5...5.5 v, tj = -40...125 c, led = r = 740 nm, unless otherwise noted item symbol parameter conditions unit no. min. typ. max. led power control 501 iop() permissible led output current -40 0 ma 502 vs()hi saturation voltage hi vs()hi = vcc - v(led); i() = -40 ma 0.25 0.5 1 v 503 isc()hi short-circuit current hi v() = 0 v -150 -50 ma digital outputs pa, na, pb, nb, pz, nz, u, v, w 601 fout maximum output frequency 800 khz 602 vs()lo saturation voltage lo vcc = 4.5...5.5 v, i() = 4ma, tj = 70 c 0.4 v 603 vs()lo saturation voltage lo vcc = 4.5...5.5 v, i() = 4ma, tj = 85 c 0.5 v 604 vs()lo saturation voltage lo vcc = 3.5...4.5 v, i() = 4ma 0.6 v 605 isc()lo short-circuit current lo v() = vcc 7 70 ma 606 vs()hi saturation voltage hi vs()hi = vcc - v(), i() = -4 ma; vcc = 4.5...5.5 v 0.4 v vcc = 3.5...4.5 v 0.6 v 607 isc()hi short-circuit current hi v() = 0 v -70 -7 ma selection input sel 701 vt1()hi upper threshold voltage hi for a/b mode with x2 interpolation 78 80 82 %vcc 702 vt1()lo upper threshold voltage lo for a/b mode with x2 interpolation 68 70 72 %vcc 703 vt1()hys upper threshold hysteresis vt1()hys = vt1()hi - vt1()lo 8 10 12 %vcc 704 vt2()hi lower threshold voltage hi for a/b mode 28 30 32 %vcc 705 vt2()lo lower threshold voltage lo for a/b mode 18 20 22 %vcc 706 vt2()hys lower threshold hysteresis vt2()hys = vt2()hi - vt2()lo 8 10 12 %vcc 707 v0() pin-open voltage for analog mode 45 50 55 %vcc 708 rpd() pull-down resistor sel to gnd, v(sel) = vcc 70 100 140 k
709 rpu() pull-up resistor vcc to sel, v(sel) = 0 v 70 100 140 k
710 vpd() pull-down voltage vs. vcc/2 vpd() = v() - vcc/2; i() = 0...5 a 0.5 v 711 vpu() pull-up voltage vs. vcc/2 vpu() = v() - vcc/2; i() = -5...0 a -0.5 v test circuit inputs tip, tin 801 i()test permissible test current range test mode active 10 600 a 802 v()test test pin voltage test mode active, i() = 200 a 1.25 1.5 1.75 v 803 ipd() test pin pull-down current test mode not active, v() = 0.4 v 60 100 160 a 804 ipd() test pin pull-down current v() = vcc 0.7 2 3 ma 805 it()on test mode activation threshold 80 130 190 a 806 cr() test mode current ratio i()/iph() test mode active, i() = 200 a 1500 3000 5000 power-on-reset circuit 901 vccon turn-on threshold vcc (power-on release) increasing voltage at vcc 2.6 3.45 v 902 vccoff turn-off threshold vcc (power-down reset) decreasing voltage at vcc 1.4 2.4 v 903 vcchys threshold hysteresis vcchys = vccon - vccoff 50 170 300 mv index length selection input t1 a01 vt1()hi upper threshold voltage hi for index length 1 t 78 80 82 %vcc a02 vt1()lo upper threshold voltage lo for index length 1 t 68 70 72 %vcc a03 vt1()hys upper threshold hysteresis vt1()hys = vt1()hi - vt1()lo 8 10 12 %vcc a04 vt2()hi lower threshold voltage hi for index length 0.5 t (b-gated) 28 30 32 %vcc a05 vt2()lo lower threshold voltage lo for index length 0.5 t (b-gated) 18 20 22 %vcc a06 vt2()hys lower threshold hysteresis vt2()hys = vt2()hi - vt2()lo 8 10 12 %vcc a07 v0() pin-open voltage for index length 0.25 t (ab-gated) 45 50 55 %vcc a08 rpd() pull-down resistor t1 to gnd, v(t1) = vcc 70 100 140 k
a09 rpu() pull-up resistor vcc to t1, v(t1) = 0 v 70 100 140 k
a10 vpd() pull-down voltage vs. vcc/2 vpd() = v() - vcc/2; i() = 0...5 a 0.5 v a11 vpu() pull-up voltage vs. vcc/2 vpu() = v() - vcc/2; i() = -5...0 a -0.5 v p r e l i m i n a r y p r e l i m i n a r y
ic-pt 2610 6-ch. phased array opto encoder (26-1000) rev b3, page 8/ 11 digital output signals figure 1: encoder quadrature signals and motor commutation signals. IC-PT2610s phased array design determines the opti- cal radius (11.0 mm) and the cycles per revolution for the a and b encoder quadrature signals (1000 cpr native, respectively 2000 cpr interpolated). the pulse count, period length and phase shift for the u, v, w commutation signals is determined by the code disc. sampling is supported by code disc pt15s 26-1000 providing 4 cpr each for u/v/w, with a period length of 90 degrees (c). a phase shift of 0 degrees ( ' ) between u and z edges must be considered during alignment. ideally, the ris- ing edge of u meets the index z. for detailed speci?cations, refer to the relevant code disc datasheet, available separately. analog output signals figure 2: analog signal output (pin sel open). when the operating mode selection input sel is left open, all digital outputs are disabled and analog out- put signals are available for test and alignment. if analog signals are desired permanently, noise immu- nity can be improved by wiring pin sel to an external vcc/2 reference. figure 3: analog/digital signal output for oqfn32-5x5-3 (pin sel open). the analog output signals may be used to higher the encoders resolution by an external interpolation ic. in this case, using package oqfn32-5x5-3 may be considered to obtain analog signals at pa/pb/pz and na/nb/nz outputs connecting the interpolation ic, to- gether with digital signals at u/v/w connecting a line driver. special attention to the pcb layout should be paid to avoid cross talk; analog and digital lines should be sep- arated carefully. p r e l i m i n a r y p r e l i m i n a r y t t/4 t/4 t/4 t/4 p a pb pz u v w c/6 c/6 c/6 c/6 c/6 c/6 c ? pz pz ab-gated b-gated ungated gnd t1 sel ic-ptxxxx ca vcc u p a pb pz u p a pb pz gnd t1 sel ic-ptxxxx ca vcc
ic-pt 2610 6-ch. phased array opto encoder (26-1000) rev b3, page 9/ 11 index gating figure 4: ungated index signal (t1 = high) at x1 interpolation (sel = low). figure 5: t-gated index signal (t1 = high) at x2 interpolation (sel = high). figure 6: b-gated index signal (t1 = low) at x1 interpolation (sel = low). figure 7: b-gated index signal (t1 = low) at x2 interpolation (sel = high). p r e l i m i n a r y p r e l i m i n a r y t t/4 t/4 t/4 t/4 p a pb pz gnd t1 sel ic-ptxxxx ca vcc p a pb pz t t/4 t/4 t/4 t/4 gnd t1 sel ic-ptxxxx ca vcc vcc t t/4 t/4 t/4 t/4 p a pb pz gnd t1 sel ic-ptxxxx ca gnd t1 sel ic-ptxxxx ca p a pb pz t t/4 t/4 t/4 t/4 vcc
ic-pt 2610 6-ch. phased array opto encoder (26-1000) rev b3, page 10/ 11 figure 8: ab-gated index signal (t1 = open or vcc/2) at x1 interpolation (sel = low). figure 9: ab-gated index signal (t1 = open or vcc/2) at x2 interpolation (sel = high). application notes application notes for ic-ptxx series ics are available separately. design review: notes on chip functions IC-PT2610 z no. function, parameter/code description and application hints none at time of printing table 4: chip release IC-PT2610_z 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 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. p r e l i m i n a r y p r e l i m i n a r y t t/4 t/4 t/4 t/4 p a pb pz gnd t1 sel ic-ptxxxx ca pin open gnd t1 sel ic-ptxxxx ca pin open p a pb pz t t/4 t/4 t/4 t/4 vcc
ic-pt 2610 6-ch. phased array opto encoder (26-1000) rev b3, page 11/ 11 ordering information type package options order designation IC-PT2610 32-pin optoqfn, glass lid, 5 mm x 5 mm, 0.9 mm thickness IC-PT2610 oqfn32-5x5 digital uvw output (pad ca bonded to gnd) IC-PT2610 oqfn32-5x5-3 code disc 1000 ppr +4 ppr, od/id ? 26.0/11.6 mm, glass 1 mm pt15s 26-1000 for technical support, information about prices and terms of delivery please contact: ic-haus gmbh tel.: +49 (61 35) 92 92-0 am kuemmerling 18 fax: +49 (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 p r e l i m i n a r y p r e l i m i n a r y

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