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iC-PN2624
preliminary
Rev B1, Page 1/7
PHASED ARRAY NONIUS ENCODER 26-1024
FEATURES o o o o o o o o o o Compact photosensor for high-resolution Nonius scanning Phased-array design for excellent signal matching Reduced cross talk due to moderate track pitch Ultra low dark currents for operation to high temperature Low noise amplifiers with high transimpedance of typ. 4 M Short-circuit-proof, low impedance voltage outputs for enhanced EMI tolerance Space saving QFN and optoBGA packages (RoHS compliant) Low power consumption from single 4.5 to 5.5 V supply Operational temperature range of -40 to +110 C Optional code discs with 1023/1024/992 PPR - LSHC1S 26-1024N (OD/ID 26/11.6 mm, glass)
APPLICATIONS o Absolute position encoders
PACKAGES
32-pin QFN 15-pin optoBGA
Chip
2.88 mm x 3.37 mm
BLOCK DIAGRAM
iC-PN2624
Copyright (c) 2009 iC-Haus
http://www.ichaus.com
iC-PN2624
preliminary
Rev B1, Page 2/7
PHASED ARRAY NONIUS ENCODER 26-1024
DESCRIPTION The optical encoder iC-PN2624 features monolithically integrated photosensors arranged in a phasedarray. A high transimpedance gain of typically 4 M generates output signals of a few hundret Millivolts already from illumination levels of 1 to 3 mW/cm2 . In most cases no additional measures must be considered to filter for noise and interferences. Analog nonius encoders are the typical application for iC-PN2624. Its 3-track scanning features a phased-array of multiple photosensors each per track, generating positive and negative going sine signals, as well as positive and negative going cosine signals. An excellent matching and common mode behavior of the differential signal paths is obtained by a paired amplifier design, reducing the needs for external signal calibration to an absolute minimum. The spectral sensitivity range includes visible to near infrared light, with the maximum sensitivity being close to a wavelength of 680 nm. An output voltage of approximately 1 V is typical under low light conditions, for instance when iC-PN2624 is illuminated at only 1.5 mW/cm2 by an 740 nm LED.
PACKAGES INFORMATION PAD LAYOUT (2.88 mm x 3.37 mm) PAD FUNCTIONS No. Name Function 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 VCC VREF PS_N NS_N PS_M NS_M PS_S NS_S NC_S PC_S NC_M PC_M NC_N PC_N GND +4.5..5.5 V Supply Voltage Reference Voltage Output N-Track Sine + N-Track Sine M-Track Sine + M-Track Sine S-Track Sine + S-Track Sine S-Track Cosine S-Track Cosine + M-Track Cosine M-Track Cosine + N-Track Cosine N-Track Cosine + Ground All outputs are analog voltage outputs.
iC-PN2624
preliminary
Rev B1, Page 3/7
PHASED ARRAY NONIUS ENCODER 26-1024
PIN CONFIGURATION oQFN32-5x5, oQFN32-N5x5 (5 mm x 5 mm)
32 31 30 29 28 27 26 25 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 24 23 22 21 20 19 18 17
dra_pnxx-oqfn32-n_pack_2, 10:1
PIN FUNCTIONS No. Name Function 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 VCC VREF PS_N NS_N PS_M NS_M PS_S NS_S NC_S PC_S NC_M PC_M NC_N PC_N GND BP +4.5..5.5 V Supply Voltage Reference Voltage Output N-Track Sine + N-Track Sine M-Track Sine + M-Track Sine S-Track Sine + S-Track Sine S-Track Cosine S-Track Cosine + M-Track Cosine M-Track Cosine + N-Track Cosine N-Track Cosine + Ground Backside pad (oQFN32-5x5 only): not intended as an electrical connection point; when using as shield a single link to GND is permissible.
PIN CONFIGURATION oBGA LSH2C (6.2 mm x 5.2 mm)
PIN FUNCTIONS No. Name Function A2 A3 A4 B1 B2 B3 B4 C1 C2 C3 C4 D1 D2 D3 D4 VCC VREF GND PS_N NS_N NC_N PC_N PS_M NS_M NC_M PC_M PS_S NS_S NC_S PC_S +4.5..5.5 V Supply Voltage Reference Voltage Output Ground N-Track Sine + N-Track Sine N-Track Cosine N-Track Cosine + M-Track Sine + M-Track Sine M-Track Cosine M-Track Cosine + S-Track Sine + S-Track Sine S-Track Cosine S-Track Cosine +
1 A B C D
2
3
4
dra_lsh2c-pnxx_pack_2, 8:1
iC-PN2624
preliminary
Rev B1, Page 4/7
PHASED ARRAY NONIUS ENCODER 26-1024
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 Voltage at VCC Current in VCC Pin Voltage, all signal outputs Pin Current, all signal outputs ESD Susceptibility, all pins Junction Temperature Chip Storage Temperature HBM, 100 pF discharged through 1.5 k -40 -40 Conditions Min. -0.3 -20 -0.3 -20 Max. 6 20 VCC + 0.3 20 2 150 150 V mA V mA kV C C Unit
G001 VCC G002 I(VCC) G003 V() G004 I() G005 Vd() G006 Tj G007 Ts
THERMAL DATA
Item No. T01 Symbol Ta Parameter Conditions Min. Operating Ambient Temperature Range package oBGA LSH2C package oQFN32-N5x5 package oQFN32-5x5* (extended temperature range on request) T02 T03 Ts Tpk Storage Temperature Range Soldering Peak Temperature package oBGA LSH2C, package oQFN32-N5x5, oQFN32-5x5* package oBGA LSH2C tpk < 20 s, convection reflow tpk < 20 s, vapor phase soldering TOL (time on label) 8 h; Please refer to customer information file No. 7 for details. T04 Tpk Soldering Peak Temperature package oQFN32-N5x5, oQFN32-5x5* tpk < 20 s, convection reflow tpk < 20 s, vapor phase soldering MSL 5A (max. floor live 24 h at 30 C and 60 % RH); Please refer to customer information file No. 7 for details. 245 230 C C 245 230 C C -40 -40 110 110* C C -40 -40 -40 Typ. Max. 110 110 110* C C C Unit
*) Package qualification pending.
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-PN2624
preliminary
Rev B1, Page 5/7
PHASED ARRAY NONIUS ENCODER 26-1024
ELECTRICAL CHARACTERISTICS
Operating conditions: VCC = 4.5...5.5 V, Tj = -40..125 C, unless otherwise stated Item No. 001 002 003 004 101 102 103 104 105 106 Symbol Parameter Conditions Min. VCC I(VCC) Vc()hi Vc()lo ar pk Aph() S( ) E()mxr Permissible Supply Voltage Supply Current in VCC Clamp-Voltage hi at all pins Clamp-Voltage lo at all pins Spectral Application Range Peak Sensitivity Wavelength Radiant Sensitive Area Spectral Sensitivity Irradiance For Maximum Signal Level Permissible Photocurrent Operating Range Photo Sensitivity LED = 740 nm (light-to-voltage conversion ratio) Equivalent Transimpedance Gain Z = Vout() / Iph() Temperature Coefficient of Transimpedance Gain Transimpedance Gain Matching P vs. N path per diff. channel no illumination, any output to any output no illumination, P.. output vs. corresponding N.. output illuminated to 500 mV signal level above dark level, 500 kHz band width illumination to E()mxr, linear gain no illumination, load 20 k vs. +2 V Vout()acmx = Vout()mx - Vout()d load current to ground load current to IC f = 1 kHz VCC = 0 V 5 V I(VREF) = 0...+1.6 mA I(VREF) = 0...+1.6 mA load current to ground load current to IC 600 -10 200 2 420 4.5 770 2.45 600 1.48 100 250 70 -0.2 -35 -2.5 120 180 0.5 LED = 740 nm LED = pk LED = 740 nm, Vout() not saturated 0.9 no output load, photocurrents within linear operating range (no override) I() = 4 mA I() = -4 mA Se( ar) = 0.25 x S( )max -1.2 400 680 0.1 0.5 0.55 1.6 2.3 4.5 9.5 Typ. Max. 5.5 15 11 -0.3 950 V mA V V nm nm mm2 A/W A/W mW/ cm2 nA V/W M %/C 0.2 35 2.5 280 % mV mV kHz mV Unit
Total Device
Photosensors
S( pk)max Maximum Spectral Sensitivity
Photocurrent Amplifiers 201 202 203 204 209 210 211 212 213 Iph() ()r Z() TCz Z()pn 0 0.8 2.69 1.2 4.0 -0.12 280 2.0 5.46
Vout()pn Signal Matching Vout()pn Signal Matching fc()hi VNoise() Cut-off Frequency (-3 dB) RMS Output Noise
Signal Outputs 301 302 303 304 305 306 307 401 402 403 404 Vout()mx Vout()d Isc()hi Isc()lo Ri() ton() VREF dVout() Isc()hi Isc()lo Permissible Maximum Output Voltage Dark Signal Level Short-Circuit Current hi Short-Circuit Current lo Internal Output Resistance Power-On Settling Time Reference Voltage Load Balancing Short-Circuit Current hi Short-Circuit Current lo 2.72 770 1.96 420 480 110 3.02 1000 2.35 800 700 180 100 1000 +10 800 10 V mV V A A s mV mV A mA
Vout()acmx Maximum Signal Level
Reference Voltage VREF
iC-PN2624
preliminary
Rev B1, Page 6/7
PHASED ARRAY NONIUS ENCODER 26-1024
APPLICATION CIRCUITS
Disc
iC-PNxxxx
iC-MN
Figure 1: Application example of absolute encoder circuit.
iC-Haus expressly reserves the right to change its products and/or specifications. An Infoletter 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 on this site and does not assume liability for any errors or omissions in the 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 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. As a general rule our developments, IPs, principle circuitry and range of Integrated Circuits are suitable and specifically designed for appropriate use in technical applications, such as in devices, systems and any kind of technical equipment, in so far as they do not infringe existing patent rights. In principle the range of use is limitless in a technical sense and refers to the products listed in the inventory of goods compiled for the 2008 and following export trade statistics issued annually by the Bureau of Statistics in Wiesbaden, for example, or to any product in the product catalogue published for the 2007 and following exhibitions in Hanover (Hannover-Messe). We understand suitable application of our published designs to be state-of-the-art technology which can no longer be classed as inventive under the stipulations of patent law. Our explicit application notes are to be treated only as mere examples of the many possible and extremely advantageous uses our products can be put to.
iC-PN2624
preliminary
Rev B1, Page 7/7
PHASED ARRAY NONIUS ENCODER 26-1024
ORDERING INFORMATION
Type iC-PN2624
Package 32-pin optoQFN, 5 mm x 5 mm, 0.9 mm thick 32-pin optoQFN, 5 mm x 5 mm, 1.4 mm thick 15-pin optoBGA, 6.2 mm x 5.2 mm
Options
Order Designation iC-PN2624 chip iC-PN2624 oQFN32-5x5
iC-PN2624 oQFN32-N5x5
iC-PN2624 oBGA LSH2C
Encoder discs Nonius code disc 1023/1024/992 PPR, OD/ID 26/11.6 mm, glass LSHC1S 26-1024N
For technical support, information about prices and terms of delivery please contact: iC-Haus GmbH Am Kuemmerling 18 D-55294 Bodenheim GERMANY Tel.: +49 (61 35) 92 92-0 Fax: +49 (61 35) 92 92-192 Web: http://www.ichaus.com E-Mail: sales@ichaus.com
Appointed local distributors: http://www.ichaus.com/sales_partners

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