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iC-LQNP
PULSE AND AC LIGHT SENSOR
Rev B1, Page 1/10 FEATURES o o o o o o o o o o o Fast response amplifier with on-chip photodiode High interference immunity due to monolithic design Active photodiode area of ca. 1 mm 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 s 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 o Single 5 to 12 V supply, low power consumption also with bright ambient light o Options: customised COB versions APPLICATIONS o 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.
PACKAGES
TO18-4F/L
cDFN6
oBGA LQ1C
BLOCK DIAGRAM
+4.5...13.2 V
VCC
iC-LQNP
iph A f
NOUT OUT
RL 1..30 k Vout Vnout AC-AMP
GND
RL 1..30 k
Copyright (c) 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. Changes in the photocurrent are amplified whereas the photocurrents caused by background light are electronically suppressed with over 60 dB (at 100 Hz). 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. 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 s and upwards. The transimpedance can be selected within a range of approximately 1 to 10 M via the external load resistor. 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 GND OUT VCC NOUT Ground High-Side Current Output +4.5 to +13.2 V Supply Voltage Low-Side Current Output
PIN CONFIGURATION cDFN6 3 mm x 3 mm
PIN FUNCTIONS No. Name Function 1 2 3 4 5 6 GND OUT n.c. n.c. NOUT VCC Ground High-Side Current Output
6
PIN CONFIGURATION oBGA LQ1C
1 2 3
Low-Side Current Output +4.5 to +13.2 V Supply Voltage
5 4
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 Supply Voltage Output Current ESD susceptibility at all pins Junction Temperature Storage Temperature see package specifications HBM, 100 pF discharged through 1.5 k -40 Conditions Min. 0 -4 Max. 15 4 1.5 150 V mA kV C Unit
G001 VCC G002 I() G003 Vd() G004 Tj G005 Ts
THERMAL DATA
Operating Conditions: VCC = 4.5...13.2 V Item No. T01 Symbol Ta Parameter Conditions Min. Operating Ambient Temperature Range cDFN6 for other packages, see relevant package specifications 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. -20 Typ. Max. 85 C Unit
T02
Tpk
245
C
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.
iC-LQNP
PULSE AND AC LIGHT SENSOR
Rev B1, Page 5/10 ELECTRICAL CHARACTERISTICS
Operating Conditions: VCC = 4.5...13.2 V, R1 = 10 k, CL = 20 pF, = 875 nm, Tj = -25...125 C, if not otherwise stated. Item No. 001 002 Symbol Parameter Conditions Min. VCC I(VCC) Permissible Supply Voltage Supply Current E(PD) = 0 E(PD)ac = 0, E(PD)pk = 0, E(PD)cw = 30 mW/cm, no load I() = 1 mA I(NOUT) I(OUT) E(PD) = 0 E(PD) = 0, VCC = 5 V, Tj = 27 C E(PD) = 0 E(PD) = 0, VCC = 5 V, Tj = 27 C Vc()hi = V(OUT) - VCC, VCC = 0V, I() = 4 mA I() = -4 mA 0 -2 -235 -145 105 145 0.25 -1.4 0.5 -0.5 1 0.5 Se(ar ) = 0.1 x S( )max LED fur S( )max, iC-LQNP Chip standard illuminant A, T = 2856 K; TO18-4F TO18-4L 203 Ev()cw Ambient Light Susceptibility standard illuminant A, T = 2856 K; TO18-4F TO18-4L |I((N)OUT)| increases or remains constant as E()pk increases; chip, TO18-4F TO18-4L 205 Gpk Pulse Light Amplification 875 nm VCC = 5 V, E(PD)pk = 35 W/cm, tr = tf = 0.1 s, twpk = 1.4 s; chip, TO18-4F TO18-4L Pulse Light Amplification 850 nm see 205; chip, TO18-4F TO18-4L Output Current Delay Recovery Time Power Flash Recovery Time AC Light Amplification see 205, |I((N)OUT)|: 0 50% peak value see 205, settled better 10% to initial quiescent point E(PD)pk = 35 mW/cm, twpk = 100 s f = fc, E(PD)ac = 35 W/cm; Chip, TO18-4F TO18-4L Rl = 1 k, CL = 20 pF Rl = 10 k, CL = 20 pF R1 = 1 k, CL = 20 pF R1= 10 k, CL = 20 pF 400 2800 140 120 400 360 500 1050 30 1.4 -0.25 235 4.5 0.4 0.8 Typ. Max. 13.2 1.4 2 0.5 0.5 2 0 -105 V mA mA V V mA mA A A A A V V mm A/W nm mW/ cm mW/ cm mW/ cm klx klx Unit
Total Device
003 004 005 006 007 008 009 101 102 103 201 202
Vs(OUT)
Output Saturation Voltage at OUT I() = -1 mA, Vs(OUT) = VCC - V(OUT)
Vs(NOUT) Output Saturation Voltage at NOUT I() I0() I0() Vc()hi Vc()lo Aph() S( )max ar E()cw Ev()cw Permissible Output Current in NOUT, OUT Output Bias Current in OUT Output Bias Current in NOUT Output Clamp Voltage hi Output Clamp Voltage lo Radiant Sensitive Area Spectral Sensitivity Spectral Application Range Permissible DC Irradiance Ambient Light Susceptibility
Photodiode
Photocurrent Amplifier
50 7
70 10
204
E()pk
Permissible Peak Irradiance
100 15
mW/ cm mW/ cm
100 700
220 1540 250 1800
350 2500
A/W A/W A/W A/W
206
Gpk
207 208 209 210
t() trec trec Gac
1.5 15 60
s s s A/W A/W kHz kHz kHz kHz
211 212
fc fhc
Bandpass Center Frequency Upper Cut-off Frequency (-3 dB)
iC-LQNP
PULSE AND AC LIGHT SENSOR
Rev B1, Page 6/10 ELECTRICAL CHARACTERISTICS
Operating Conditions: VCC = 4.5...13.2 V, R1 = 10 k, CL = 20 pF, = 875 nm, Tj = -25...125 C, if not otherwise stated. Item No. 213 214 Symbol flc Q Parameter Lower Cut-off Frequency (-3 dB) Filter Q-Factor Conditions Min. R1 = 1 k, CL = 20 pF R1 = 10 k, CL = 20 pF Q = fc / (fhc - flc); R1 = 1 k, CL = 20 pF R1 = 10 k, CL = 20 pF f = 100 Hz VCC = 5 V, E(PD) = 0 VCC = 5 V, Ev(PD)dc ca. 15.000 lx, standard illuminant A, T = 2856 K, chip Tj = -25...70 C Typ. 40 35 0.65 0.65 60 7 20 450 dB mV mV s Max. kHz kHz Unit
215 216
G100 Vn()
LF Suppression Output Noise Voltage (RMS)
217
ton(VCC)
Power-On Setup Time
iC-LQNP
PULSE AND AC LIGHT SENSOR
Rev B1, Page 7/10 CHARACTERISTICS: Diagrams
REF 8 mV PEAK LIN
#AT 10 dB
100 % 90 80 70 60 50 40 30 20 10
START 15 kHz STOP 1.5 MHz VBW 10 kHz #SWP 10 sec
400
600
800
1000 nm
RES BW 10 kHz
Figure 1: Typical relative spectral sensitivity
Figure 2: Output voltage noise [mV/ 10 kHz] to 10 k/20 pF load with Ev()dc < 500 lx
REF 8 mV PEAK LIN #AT 10 dB
20E
10E
0E 1.0 TO-lens
10E
20E
optoBGA
30E
0.8 TO-flat 0.6
30E
0.4 60E 60E
START 15 kHz
STOP 1.5 MHz VBW 10 kHz #SWP 10 sec
Figure 3: Typical directional characteristics for TO18 and optoBGATM packages
RES BW 10 kHz
Figure 4: Output voltage noise [mV/ 10 kHz] to 10 k/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 s pulse light. Transmitter: LED 875 nm with tr = tf = 0.1 s; VCC = 5 V, R1 = 10 k, 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 s pulse light with noise (accumulated over 256 samples)
Figure 7: Output signal for 2 s 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 s power pulse; back to ready-to-receive state after approx. 35 s; 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 iC-LQNP
Package TO18-4L TO18-4F cDFN6 oBGA LQ1C -
Order Designation 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: sales@ichaus.com
Appointed local distributors: http://www.ichaus.de/support_distributors.php

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