Datasheet

ManualsBrandsIC Haus ManualsIntegrated Circuits (ICs)Light Sensor TO-18/4L

iC-LQNP

PULSE AND AC LIGHT SENSOR

Rev B1, Page 1/10

FEATURES

♦ Fast response ampliﬁer with on-chip photodiode

♦ High interference immunity due to monolithic design

♦ Active photodiode area of ca. 1mm²

♦ Suitable for visible light and near infrared

♦ Integrated band-pass ﬁlter with 140kHz 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

♦ Options: customised COB versions

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.

PACKAGES

TO18-4F/L

cDFN6

oBGA LQ1C

BLOCK DIAGRAM

+4.5...13.2 V

Vout

AC−AMP

iph

iC−LQNP

1..30 k Ω

VCC

OUT

GND

NOUT

1..30 k Ω

Vnout

Summary of content (10 pages)

PAGE 1
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.
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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.
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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.
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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.
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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.
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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.
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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.
PAGE 8
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.
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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.
PAGE 10
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: sales@ichaus.