View SFH-7740_6428574.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

sfh 7740 reflexlichtschranke reflective optical switch lead (pb) free produc t - rohs compliant 2009-01-14 1 wesentliche merkmale ? arbeitsabstand: 0.5 - 4 mm ? arbeitsbereich einstellbar ? optohybrid mit schmitt-trigger ausgang, open drain ? extrem niedriger stromverbrauch ? sehr kleines smd geh?use ? hohe umgebungslicht unterdrckung anwendungen ? positionserkennung von abdeckungen fr batterief?cher, foto-objektiven usw. ? mobile ger?te typ type bestellnummer ordering code sfh 7740 q65110a6668 features ? working distance: 0.5 - 4 mm ? working range adjustable ? opto hybrid with schmitt trigger output, open drain ? extremly low power consumption ? very small smd package ? high ambient light suppression applications ? position detection of sliding covers for battery-cases, camera lenses ect. ? mobile devices an application note is av ailable for this product. please contact your approp riate osram sales partner
sfh 7740 2009-01-14 2 grenzwerte maximum ratings bezeichnung parameter symbol symbol wert value einheit unit lagertemperatur storage temperature t stg min: ? 40 max: + 85 c versorgungsspannung supply voltage v dd 0 - 6 v externe spannung an pin external voltage at pin out prog test anode led v out 0 - 4.5 0 - 4.5 0 - 4.5 0 - 1.5 v sink current durch ausgangstransistor sink current through output transistor (please see figure 1) i sink 10 ma vorw?rtsstrom 1) forward current (please see figure 1) 1) der vorw?rtsstrom i f durch die led ist abh?ngig von v dd und r prog wie folgt: * the forward current i f depends on v dd and r prog as in the following formula: i f 60 ma elektrostatische entladung electrostatic discharge - human body model (according to: jesd22-a114e; class2) - machine model (according to: jesd22-a115a; class b) esd 2 200 kv v latch up protection latch up protection (according to: eia/jesd78 class 1) 20 ma i f 10ma v dd 6 r prog ------------------ ?? ?? + =
sfh 7740 2009-01-14 3 empfohlene betriebsbedingungen recommended operating conditions bezeichnung parameter symbol symbol wert value einheit unit min. typ. max. betriebstemperatur operating temperature t op ? 20 + 85 c versorgungsspannung supply voltage v dd 2.4 3.6 v ausgangsspannung output voltage (please see figure 1) dv dd 1.7 3.6 v rauschen der versorgungsspannung 1) supply voltage ripple frequency range 0...20khz 1) der emitter wird mit 10ma bis 60ma gepulst betrieben; das bedeutet, dass jeder widerstand in serie zu v dd einen spannungsabfall in der versorgungsleitung verursacht. es wird empfohlen, diesen serienwiderstand so klein zu halten, dass max dv dd nicht berschritten wird. beim betrieb des sfh 7740 im labor ist vom einsatz geregelter spannungsversorgungen abzusehen. durch das einschalten der ired wird die quelle kurzzeitig belastet. diese belastung kann zu spannungsschwankungen der quelle fhren, die wiederum die funktion des sfh 7740 beeintr?chtigen k?nnen. im normalbetrieb (a kku, batterie, stabilisierte netzteile) tritt dieser effekt ni cht auf. * the emitter is driven with 10 ma to 60 ma in pul sed mode; this means, that any series resistance on the v dd line causes a voltage drop at the power pin. it is recommended to keep the series resistance low, so that max dv dd is not exceeded. when testing the sfh 7740 sensor in the lab, please do not use regulated voltage supplies. the ir emitter pulse is a high, short load for the power suppl y. this load can influence the stability of the output voltage; this instability will influence the operation of the sfh 7740. this eff ect does not occur during normal operation of the sensor with batteries, storage batteries, or stabilized voltage supplies. dv dd 200 mv pull-up widerstand pull-up resistor (please see figure 1) r pull-up 10 1000 k abblock kondensatoren bypass capacitors (please see figure 1) c bypass - stabilisation - hf >1 10 - 100 f nf umgebungslicht ambient light normlicht / standard light a e v v dd < 3v v dd > 3v 2000 4000 lux
sfh 7740 2009-01-14 4 kennwerte (ta = 25c) characteristics bezeichnung parameter symbol symbol wert value einheit unit min. typ. max. minimale betriebsspannung fr startphase minimum required suppl y voltage for start-up (please see figure 2) v dd, start 0.8 2.0 v l?nge der startphase start up time (please see figure 2) t start 60 90 120 ms mess-wiederholzeit measurement refresh time (please see figure 2) t refresh 60 90 120 ms led ?an? zeit led ?on? time (please see figure 3) t pulse 30 45 60 s mittlere stromaufnahme 1) mean current consumption 1) r prog = h , v dd = 3 v i dd, mean 25 50 a maximale stromaufnahme maximum current consumption r prog = h , v dd = 3 v i dd, max 10 20 ma mittlere stromaufnahme 1) mean current consumption 1) r prog = 470 , v dd = 3 v i dd, mean 45 75 a maximale stromaufnahme maximum current consumption r prog = 470 , v dd = 3 v i dd, max 50 65 ma ausgangsleckstrom ?high? output leakage current ?high? dv dd = 2.2v i out, h 5 400 na ausgangsspannung ?low? output voltage ?low? dv dd = 2.2v; r pullup = 270 v out, l 0.1 0.5 v wellenl?nge der max. fotoempfindlichkeit wavelength of max. sensitivity s, max 880 nm
sfh 7740 2009-01-14 5 spektraler bereich der fotoempfindlichkeit s = 10% von s max spectral range of sensitivity s = 10% of s max 730 1080 nm wellenl?nge der strahlung des emitters wavelength at peak emission i f = 10 ma peak 850 nm spektrale bandbreite des emitters bei 50% von i max spectral bandwidth of the emitter at 50% of i max i f = 10 ma ? 30 nm 1) gepulster betrieb: dauer led an: ~44s / dauer led aus: ~90ms * pulsed operating mode: led on time: ~44s / led off time: ~90ms kennwerte (ta = 25c) characteristics bezeichnung parameter symbol symbol wert value einheit unit min. typ. max.
sfh 7740 2009-01-14 6 schaltabstand und reflektoreigenschaften switching distance and reflector characteristics bezeichnung parameter symbol symbol wert value einheit unit min. typ. max. reflektor reflektivit?t reflector reflectivity = 850nm r r 850nm 50 % absorber reflektivit?t absorber reflectivity = 850nm r a 850nm 9 % kontrast verh?ltnis (r eflektor / absorber) contrast ratio (reflector / absorber) r r 850nm / r a 850nm 10 reflektor und absorber gr??e 1) (b x l) reflector and absorber size 1) (w x l) 1) siehe / see application note: ?reflective optical sensor sfh 7740?. a reflector a absorber einstellbarer arbeitsabstand 2) adjustiable working distance 2) 2) der abeitsabstand d ist definiert von der sensoroberfl?che bis zum reflektor. d min und d max k?nnen nur mit einem reflektor (reflektionsgrad r>60%) und absorber (r<6%) erreicht werden. * the working distance d is defined from to p of the sensor to reflector surface. d min and d max can only be reached with a reflector (reflection coefficient r>60%) and absorber ( r<6%). d 0.5 4 mm variation des arbeitsabstandes 1) variation of working distance 1) d +/- 0.4 mm graph 1: adjustion of different working distances by emitter current i f and r prog as func 10 20 30 40 50 60 0.5 1 1.5 2 2.5 3 3.5 4 d / mm if / ma 50% 60% 70% 80% 90% r prog v dd 6 i f 10ma ? ------------------------- =
sfh 7740 2009-01-14 7 blockdiagramm (empfohlener pull-up-widerstand r pull up = 10kohm...100kohm) block diagram (recommended pull up resistance r pull up = 10kohm...100kohm) figure 1 blockdiagramm block diagram ohf03409 photo- transistor led led anode (must not be connected) dd v out v boundaries device asic pull up r gnd prog prog r f i out dv dd test stabilisation c sink i hf c gnd gnd gnd
sfh 7740 2009-01-14 8 figure 2 startverhalten start-up sequence ohf03836 t out t t 1 1 t high low for reflector for absorber or no reflector dd v v dd_start max dd_start min v default low 60 ms - t 120 ms + 1 undefined high or low output impedance der ausgang ist immer hochohmig, wenn an v dd keine spannung angeschlossen ist. wenn die versorgungsspannung v dd, start erreicht, bleibt der ausgang fr 60ms < t start <120ms auf ?low?. anschlie?end findet etwa alle 90ms eine messung des reflektier ten signals statt und der ausgang wird entprechend geschalten (figure 3). if the supply voltage at v dd is not connected, the output is alwa ys high ohmic. when supply voltage reaches v dd, start , the sensor output stays low for 60ms < t start <120ms. subsequently approx. every 90ms the reflected signal is measured and the output is set accordingly (figure 3). figure 3 timing diagram ohf03835 t out t t pulse refresh t high low for reflector for absorber or no reflector f
sfh 7740 2009-01-14 9 led: relative spectral emission i rel = f ( ); t a = 25c 700 0 nm % ohl01714 20 40 60 80 100 950 750 800 850 i rel phototransistor relative spectral sensitivity s rel = f ( ); t a = 25c 0 20 40 60 80 100 700 800 900 1000 1100 lam bda / nm srel % sfh 7740: mean current consumption i dd = f (v dd ); r prog ; t a = 25c 20 30 40 50 2.4 2.7 3.0 3.3 3.6 v dd / v i dd a 330 470 2k inf.
sfh 7740 2009-01-14 10 ma?zeichnung package outlines ma?e in mm (inch) / dimensions in mm (inch)
sfh 7740 2009-01-14 11 anschlu?belegung pin configuration empfohlenes pickup nadel recommended pickup nozzle ma?e in mm/ dimensions in mm pin # description 1 anode led (must not be connected) 2 gnd 3 out 4 test (must be connected to gnd) 5 v dd 6 prog gply7058 3.8 (0.150) ?1.5 (0.059) 3.6 (0.142) 13 (0.512) bauteilaufnahme device pickup vakuum pipette sollte das bauteil am rechteckigen au?enrahmen fassen. laminar vacuum pickup nozzle should use the rect angular outer wall of the device for handling.
sfh 7740 2009-01-14 12 empfohlenes l?tpaddesign recommended solderpad design ma?e in mm / di mensions in mm gurtverpackung taping
sfh 7740 2009-01-14 13 ma?e in mm / di mensions in mm
sfh 7740 2009-01-14 14 l?tbedingungen vorbehandlung nach jedec level 4 soldering conditions preconditioning acc. to jedec level 4 reflow l?tprofil fr bleifreies l?ten (nach j-std-020c) reflow soldering profile for lead free soldering (acc. to j-std-020c) published by osram opto semico nductors gmbh wernerwerkstrasse 2, d-93049 regensburg www.osram-os.com ? all rights reserved. the information describes the type of component and shall not be considered as assured ch aracteristics. due to the special conditions of the manufacturing processes of sensor , the typical data or calculated correlations of technical parameters can only reflect statistical figu res. these do not necessarily correspond to the actual parameters of each single product, which could differ from t he typical data and calculated correlations or the typical characteristic line. if requested, e.g. because of technical improvem ents, these typ. data will be changed withou t any furthe r notice. terms of delivery and rights to change design reserv ed. due to technical requirements components may contain dangerous substances. for information on the types in question please contact our sales organization. packing please use the recycling operators known to you. we can also help you ? get in touch with your nearest sales office. by agreement we will take packing material back, if it is sorted. you must bear the costs of tr ansport. for packing material that is returned to us unsorted or which we are not obliged to accept, we shall have to invoice you for any costs incurred. components used in life-support devices or system s must be expressly authorized for such purpose! critical components 1 , may only be used in life-support devices or systems 2 with the express written approval of osram os. 1 a critical component is a component usedin a life-support device or system whose failure can reasonably be expected to cause the failure of that life-support de vice or system, or to affect its safety or effectiveness of that device or system. 2 life support devices or systems are intended (a) to be impl anted in the human body, or (b) to support and/or maintain and sustain human life. if they fail, it is reasonable to assume that the health of the user may be endangered. ohla0687 0 0 t t ?c s 120 s max 50 100 150 200 250 300 ramp up 100 s max 50 100 150 200 250 300 ramp down 6 k/s (max) 3 k/s (max) 25 ?c 30 s max 260 ?c +0 ?c -5 ?c 245 ?c 5 ?c 240 ?c 255 ?c 217 ?c maximum solder profile recommended solder profile 235 ?c -0 ?c +5 ?c minimum solder profile 10 s min

▲Up To Search▲

Price & Availability of SFH-7740

	To Download SFH-7740 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .