iC-LQNP PULSE AND AC LIGHT SENSOR Rev B1, Page 1/10 FEATURES APPLICATIONS ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ Receiver for through beam and reflection light barriers with background suppression (sunlight) e.g. for presence detection in power operated gates, doors and windows etc. Fast response amplifier with on-chip photodiode High interference immunity due to monolithic design Active photodiode area of ca. 1 mm² Suitable for visible light and near infrared Integrated band-pass filter with 140 kHz center frequency Maximum gain obtained for pulse light of 1.4 µs and upwards High LF and DC (ambient) light suppression Transfer characteristics irrespective of ambient light level Soft signal and noise limiter with excess ambient light Fast recovery from flashes Complementary analogue current source outputs, transimpedance can be set by external resistor ♦ Single 5 to 12 V supply, low power consumption also with bright ambient light PACKAGES ♦ Options: customised COB versions cDFN6 TO18-4F/L oBGA LQ1C BLOCK DIAGRAM +4.5...13.2 V VCC iC−LQNP iph RL 1..30 k Ω OUT A Vout f Vnout NOUT AC−AMP RL 1..30 k Ω GND Copyright © 2009 iC-Haus http://www.ichaus.com iC-LQNP PULSE AND AC LIGHT SENSOR Rev B1, Page 2/10 DESCRIPTION iC-LQNP is a sensor for pulse and alternating light with a monolithically integrated photodiode. The device supersedes conventional photoreceivers, such as those in light barriers, for example. For visible light or near infrared the highest sensitivity for alternating light signals is reached at approximately 140 kHz; for pulse light this is reached at 1.4 µs and upwards. Changes in the photocurrent are amplified whereas the photocurrents caused by background light are electronically suppressed with over 60 dB (at 100 Hz). The transimpedance can be selected within a range of approximately 1 to 10 MΩ via the external load resistor. The integrated amplifier forms a band-pass characteristic without using any external components. The high pass filter suppresses ambient light and low frequency alternating light and the low pass filter reduces high frequency noise. iC-LQNP is available as a 4-lead TO18 metal can package with a glass lens or flat window. Customised COB versions are also possible. iC-LQNP PULSE AND AC LIGHT SENSOR Rev B1, Page 3/10 PACKAGES TO18-4F/L, cDFN6, oBGA LQ1C PIN CONFIGURATION TO18-4F/L PIN FUNCTIONS No. Name Function 1 2 3 4 PIN CONFIGURATION cDFN6 3 mm x 3 mm 6 1 2 5 3 4 PIN CONFIGURATION oBGA LQ1C GND OUT VCC NOUT Ground High-Side Current Output +4.5 to +13.2 V Supply Voltage Low-Side Current Output PIN FUNCTIONS No. Name Function 1 2 3 4 5 6 GND OUT n.c. n.c. NOUT VCC Ground High-Side Current Output Low-Side Current Output +4.5 to +13.2 V Supply Voltage PIN FUNCTIONS No. Name Function 1 2 3 4 GND VCC OUT GND Ground +4.5 to +13.2 V Supply Voltage High-Side Current Output Ground iC-LQNP PULSE AND AC LIGHT SENSOR Rev B1, Page 4/10 ABSOLUTE MAXIMUM RATINGS Beyond these values damage may occur; device operation is not guaranteed. Item No. Symbol Parameter Conditions Unit Min. Max. G001 VCC Supply Voltage 0 15 V G002 I() Output Current -4 4 mA G003 Vd() ESD susceptibility at all pins 1.5 kV G004 Tj Junction Temperature -40 150 °C G005 Ts Storage Temperature HBM, 100 pF discharged through 1.5 kΩ see package specifications THERMAL DATA Operating Conditions: VCC = 4.5...13.2 V Item No. Symbol Parameter Conditions Unit Min. T01 Ta Operating Ambient Temperature Range cDFN6 for other packages, see relevant package specifications T02 Tpk Peak Temperature cDFN6 tpk < 10 s, convection reflow MSL6, TOL (max. floor life 8 h at 30 °C and 60% RH) See Customer Information #7 for detailed information. All voltages are referenced to ground unless otherwise stated. All currents into the device pins are positive; all currents out of the device pins are negative. -20 Typ. Max. 85 °C 245 °C iC-LQNP PULSE AND AC LIGHT SENSOR Rev B1, Page 5/10 ELECTRICAL CHARACTERISTICS Operating Conditions: VCC = 4.5...13.2 V, R1 = 10 kΩ, CL = 20 pF, λ = 875 nm, Tj = -25...125 °C, if not otherwise stated. Item No. Symbol Parameter Conditions Unit Min. Typ. Max. Total Device 001 002 VCC Permissible Supply Voltage I(VCC) Supply Current 003 Vs(OUT) Output Saturation Voltage at OUT I() = -1 mA, Vs(OUT) = VCC − V(OUT) 004 Vs(NOUT) Output Saturation Voltage at NOUT I() = 1 mA 005 I() Permissible Output Current in NOUT, OUT I(NOUT) I(OUT) 006 I0() Output Bias Current in OUT E(PD) = 0 E(PD) = 0, VCC = 5 V, Tj = 27 °C -235 E(PD) = 0 E(PD) = 0, VCC = 5 V, Tj = 27 °C 105 007 I0() Output Bias Current in NOUT 4.5 E(PD) = 0 E(PD)ac = 0, E(PD)pk = 0, E(PD)cw = 30 mW/cm², no load 0.4 0.8 0 -2 13.2 V 1.4 2 mA mA 0.5 V 0.5 V 2 0 mA mA -105 µA µA 235 µA µA -145 145 008 Vc()hi Output Clamp Voltage hi Vc()hi = V(OUT) − VCC, VCC = 0V, I() = 4 mA 0.25 0.5 1.4 V 009 Vc()lo Output Clamp Voltage lo I() = -4 mA -1.4 -0.5 -0.25 V Photodiode 101 Aph() Radiant Sensitive Area 102 S(λ )max Spectral Sensitivity 103 λar Spectral Application Range 1 mm² 0.5 Se(λar ) = 0.1 × S(λ )max 500 A/W 1050 nm 30 mW/ cm² Photocurrent Amplifier 201 E()cw Permissible DC Irradiance λ LED für S(λ )max, iC-LQNP Chip 202 Ev()cw Ambient Light Susceptibility standard illuminant A, T = 2856 K; TO18-4F 50 TO18-4L 7 standard illuminant A, T = 2856 K; TO18-4F TO18-4L 70 10 203 204 205 206 Ev()cw E()pk Gpk Gpk Ambient Light Susceptibility Permissible Peak Irradiance mW/ cm² mW/ cm² klx klx |I((N)OUT)| increases or remains constant as E()pk increases; chip, TO18-4F 100 TO18-4L 15 Pulse Light Amplification 875 nm VCC = 5 V, E(PD)pk = 35 µW/cm², tr = tf = 0.1 µs, twpk = 1.4 µs; chip, TO18-4F TO18-4L Pulse Light Amplification 850 nm see 205; chip, TO18-4F TO18-4L 100 700 220 1540 350 2500 250 1800 mW/ cm² mW/ cm² A/W A/W A/W A/W 207 ∆t() Output Current Delay see 205, |I((N)OUT)|: 0 → 50% peak value 1.5 µs 208 trec Recovery Time see 205, settled better 10% to initial quiescent point 15 µs 209 210 trec Power Flash Recovery Time E(PD)pk = 35 mW/cm², twpk = 100 µs 60 µs Gac AC Light Amplification f = fc, E(PD)ac = 35 µW/cm²; Chip, TO18-4F TO18-4L 400 2800 A/W A/W 211 fc Bandpass Center Frequency Rl = 1 kΩ, CL = 20 pF Rl = 10 kΩ, CL = 20 pF 140 120 kHz kHz 212 fhc Upper Cut-off Frequency (-3 dB) R1 = 1 kΩ, CL = 20 pF R1= 10 kΩ, CL = 20 pF 400 360 kHz kHz iC-LQNP PULSE AND AC LIGHT SENSOR Rev B1, Page 6/10 ELECTRICAL CHARACTERISTICS Operating Conditions: VCC = 4.5...13.2 V, R1 = 10 kΩ, CL = 20 pF, λ = 875 nm, Tj = -25...125 °C, if not otherwise stated. Item No. 213 Symbol Parameter Conditions Unit flc Lower Cut-off Frequency (-3 dB) R1 = 1 kΩ, CL = 20 pF R1 = 10 kΩ, CL = 20 pF 40 35 214 Q Filter Q-Factor Q = fc / (fhc - flc); R1 = 1 kΩ, CL = 20 pF R1 = 10 kΩ, CL = 20 pF 0.65 0.65 Min. Typ. Max. kHz kHz 215 216 G100 LF Suppression f = 100 Hz 60 dB Vn() Output Noise Voltage (RMS) VCC = 5 V, E(PD) = 0 VCC = 5 V, Ev(PD)dc ca. 15.000 lx, standard illuminant A, T = 2856 K, chip 7 20 mV mV 217 ton(VCC) Power-On Setup Time Tj = -25...70 °C 450 µs iC-LQNP PULSE AND AC LIGHT SENSOR Rev B1, Page 7/10 CHARACTERISTICS: Diagrams REF 8 mV #AT 10 dB PEAK LIN 100 % 90 80 70 60 50 40 30 20 10 START 15 kHz 400 600 800 1000 nm Figure 1: Typical relative spectral sensitivity STOP 1.5 MHz RES BW 10 kHz VBW 10 kHz #SWP 10 sec √ Figure 2: Output voltage noise [mV/ 10 kHz] to 10 kΩ/20 pF load with Ev()dc < 500 lx REF 8 mV #AT 10 dB PEAK LIN 20E 10E 0E 1.0 10E 20E optoBGA TO-lens 30E 0.8 30E TO-flat 0.6 0.4 60E 60E START 15 kHz Figure 3: Typical directional characteristics for TO18 and optoBGA™ packages RES BW 10 kHz STOP 1.5 MHz VBW 10 kHz #SWP 10 sec √ Figure 4: Output voltage noise [mV/ 10 kHz] to 10 kΩ/20 pF load with Ev()dc ca. 15.000 lx (standard illuminant A, T = 2856 K) iC-LQNP PULSE AND AC LIGHT SENSOR Rev B1, Page 8/10 APPLICATION HINTS Example Output Signals Figure 5: Output signal for 2 µs pulse light. Transmitter: LED 875 nm with tr = tf = 0.1 µs; VCC = 5 V, R1 = 10 kΩ, CL = 20 pF; Chan 1: V(OUT), 1 V/DIV vertically, Chan 2: I(LED), 20 mA/DIV vertically Figure 6: Output signal for 2 µs pulse light with noise (accumulated over 256 samples) Figure 7: Output signal for 2 µs pulse light, superimposed by ambient light of approx. 15000 Lux Figure 8: As in Fig. 7, accumulated for visibility over 256 samples. Despite of bright ambient light condition noise remains low level. iC-LQNP PULSE AND AC LIGHT SENSOR Rev B1, Page 9/10 Figure 9: Recovery after 100 µs power pulse; back to ready-to-receive state after approx. 35 µs; Chan 1: V(OUT), 2 V/DIV vertically 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; 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-LQNP PULSE AND AC LIGHT SENSOR Rev B1, Page 10/10 ORDERING INFORMATION Type Package Order Designation iC-LQNP TO18-4L TO18-4F cDFN6 oBGA LQ1C - iC-LQNP TO18-4L iC-LQNP TO18-4F iC-LQNP cDFN6 iC-LQ oBGA LQ1C iC-LQNP chip 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: [email protected] Appointed local distributors: http://www.ichaus.de/support_distributors.php