SFH 7743-Z - OSRAM Opto Semiconductors Inc.

SFH 7743

Digitaler Näherungsdetektor mit integriertem Sender Treiber

Digital proximity detector with integrated emitter driver

Lead (Pb) Free Product - RoHS Compliant

2009-09-02 1

Wesentliche Merkmale

• Typ. Arbeitsabstand mit externem Sender SFH

4650: 40 mm

• Optohybrid mit Schmitt-Trigger Ausgang, open

drain

• Extrem niedriger Stromverbrauch

• Sehr kleines SMD Gehäuse

• Hohe Umgebungslicht Unterdrückung

Anwendungen

• Näherungsdetektor für kurze Entfernungen

Typ

Type Bestellnummer

Ordering Code

SFH 7743 Q65110A8870

Features

• Typ. Working distan ce with external emitter

SFH 4650: 40 mm

• Opto hybrid with Schmitt trigger output, open

drain

• Extremly low power consumption

• Very small SMD package

• High ambient light suppression

Applications

• Short range proximity detector

SFH 7743

2009-09-02 2

Grenzwerte

Maximum Ratings

Bezeichnung

Parameter Symbol

Symbol Wert

Value Einheit

Unit

Lagertemperatur

Storage temperature Tstg min: – 40

max: + 85 °C

Versorgungsspannung

Supply voltage Vdd 0 - 6 V

Externe Spannung an Pin

External voltage at pin

Out

Prog

Test

Anode LED

Vout 0 - 4.5

0 - 4.5

0 - 1.5

Sink current durch den Ausgangstransistor

Sink current through output transistor

(please see figure 1)

Isink 10 mA

Treiberstrom1)

Driver current

(for directly connected LED (figure 1a)

or transistor base current (figure 1b) page 6)

1) Der Treiberstrom Id ist abhängig von Vdd und Rprog wie folgt:

The driver current Id depends on Vdd and Rprog as in the following formula:

Id60 mA

Elektrostatische Entladung

Electrostatic discharge

- Human Body Model

(according to: JESD22-A114E; Class2)

- Machine Model

(according to: JESD22-A115A; Class B)

ESD

200

latch up protection

(according to: EIA/JESD78 Class 1)

20 mA

Id10mA Vdd 6×

Rprog

------------------

⎝⎠

⎛⎞

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SFH 7743

Empfohlene Betriebsbedingungen

Recommended Operating Conditions

Bezeichnung

Parameter Symbol

Symbol Wert

Value Einheit

Unit

min. typ. max.

Betriebstemperatur

Operating temperature Top – 20 + 85 °C

Versorgungsspannung

Supply voltage Vdd 2.4 3.6 V

Ausgangsspannung

Output voltage

(please see figure 1)

DVdd 1.7 3.6 V

Rauschen der Versorgungsspannung1)

Supply voltage ripple

frequency range 0...20kHz

1) Der externe Se nder kann durch den SFH 7743 direkt mit 10mA bis 60mA gepulst betrieben werden; das b edeutet,

dass jeder Widerstand in Serie zu Vdd einen Spannungsabfall in der Versorgungsleitung verursacht. Es wird

empfohlen, diesen Serienwiderstand so klein zu halten, dass max dVdd nicht überschritten und min Vdd nicht

unterschritten wird. Beim Betrieb des SFH 7743 im Labor ist vom Einsatz geregelter Spannungsversorgungen

abzusehen. Durch das Einschalten der IRED wird die Quelle kurzzeitig belastet. Diese Belastung kann zu

Spannungsschw ankungen der Quelle führen, die wiede rum die Funktion des SFH 7743 beeinträchtigen könne n. Im

Normalbetrieb (Akku, Batterie, stabilisierte Netzteile) tritt dieser Effekt nicht auf.

The external emitter can be driven directly with 10 mA to 60 mA in pulsed mode; this means, that any series

resistance on the Vdd line causes a voltage drop at the power pin. It is recommended to keep the series resistance

low, so that max dVdd is not exceeded. When testing the SFH 7743 sensor in the lab, please do not use regulated

voltage supplies. The IR emitter pulse is a high, short load for th e power supply. Th is load can in fluence the stab ility

of the output voltage; this instability will influence the operation of the SFH 7743. This effect does not occur during

normal operation of the sensor with batteries, storage batteries, or stabilized voltage supplies.

dVdd 200 mV

Pull-up Wi derstand

Pull-up resistor

(please see figure 1)

Rpull-up 10 1000 kΩ

Abblock Kondensatoren

Bypass capacitors

(please see figure 1)

Cbypass

- stabilisation

- HF >1

10 - 100 µF

Max. Umgebungslicht

Max. ambient light

Normlicht / Standard light A

Vdd < 3V

Vdd > 3V 1000

2000

lux

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SFH 7743

Kennwerte (Ta = 25°C)

Characteristics

Bezeichnung

Parameter Symbol

Symbol Wert

Value Einheit

Unit

min. typ. max.

Minimale Betriebsspannung für Startphase

Minimum required supply voltage for start-up

(please see figure 2)

Vdd, start 0.8 2.0 V

Länge der Startphase

Start-up time

(please see figure 2)

tstart 60 90 120 ms

Mess-Wiederholzeit

Measurement refresh time

(please see figure 3)

trefresh 60 90 120 ms

LED „An“ Zeit

LED „ON“ Time

(please see figure 3)

tpulse 30 45 60 µs

Schaltschwelle „Low“ --> „High“

Switching threshold „Low“ --> „High“ Ee 145 µW/cm²

Schaltabstand mit externem Sender SFH 4650

Operating distance with external emitter SFH

4650

(RProg = 470 Ω, Vdd = 3V,

KODAK White Paper R=90%)

(please see figure 1a, Option 1)

d40 mm

Schaltabstand mit externem Sender SFH 4650

Operating distance with external emitter SFH

4650

(SFH 4650 driven with 1A via externa l transistor,

KODAK White Paper R=90%)

(please see figure 1b, Option 2)

d150 mm

Durchschnittliche Stromaufnahme1)

Mean current consumption1)

(RProg = h, Vdd = 3V)

Idd, mean 25 50 μA

Maximale Stromaufnahme

Maximum current consumption

(RProg = h, Vdd = 3V)

Idd, max 10 20 mA

Durchschnittliche Stromaufnahme1)

Mean current consumption1)

(RProg = 470 Ω, Vdd = 3V)

Idd, mean 45 75 μA

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SFH 7743

Maximale Stromaufnahme

Maximum current consumption

(RProg = 470 Ω, Vdd = 3V)

Idd, max 50 65 mA

Ausgangsleckstrom „high“

Output leakage current „high“

DVdd = 2.2V

Iout, H 5400 nA

Ausgangsspannung „low“

Output voltage „low“

DVdd = 2.2V; Rpullup = 270 Ω

Vout, L 0.1 0.5 V

Wellenlänge der max. Fotoempfindlichkeit

Wavelength of max. sensitivity λS, max 880 nm

Spektraler Bereich der Fotoempfindlichkeit

S = 10% von Smax

Spectr al range of s ensitivity

S = 10% of Smax

λ730 1080 nm

1) gepulster Betrieb: Dauer LED an: ~44µs / Dauer LED aus: ~90ms

pulsed operating mode: LED on time: ~44µs / LED off time: ~90ms

Kennwerte (Ta = 25°C)

Characteristics

Bezeichnung

Parameter Symbol

Symbol Wert

Value Einheit

Unit

min. typ. max.

SFH 7743

2009-09-02 6

Blockdiagramm (empfohlener Pull-Up-Widerstand R pull up = 10kOhm...1MOhm)

Block diagram (recomme nded Pull up resistance Rpull up = 10kOhm...1MOhm)

Figure 1a Blockdiagramm Option 1

Block diagram option 1

Figure 1b Blockdiagramm Option 2

Block diagram option 2

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SFH 7743

Figure 2 Startverhalten

Start-up sequence

Der Ausgang ist immer hochohmig, wenn an Vdd keine Spannung angeschlossen ist. Wenn die

Versorgungsspannung Vdd, start erreicht, bleibt der Ausgang für 60ms < tstart <120ms auf „low“. Anschließend

findet etwa alle 90ms eine Messung des reflektierten Signals statt und der Ausgang wird entprechend

geschalten (Figure 3).

If the supply voltage at Vdd is not connected, the outp ut is alw ays high ohmic. Whe n supply voltage reaches

Vdd, start , the sensor output stays low for 60ms < tstart <120ms. Subsequently approx. every 90ms the reflected

signal is measured and the output is set accordingly (Figure 3).

OHF03836

Out

High

Low

For reflector

For absorber

or no reflector

dd_start max

dd_start min

Default

Low

60 ms -

120 ms + 1

Undefined high or low output impedance

OHF03835

Out

pulse

refresh

High

Low

For reflector

For absorber

or no reflector

Figure 3 Timing diagram

SFH 7743

2009-09-02 8

Phototransistor

Relative Spectral Sensitivity

Srel = f (λ); TA = 25°C

700

0nm

OHF04011

100

800 900 1000 1100

rel

SFH 7743:

Mean current consumption

Idd = f (Vdd); Rprog; TA = 25°C

OHF04012

µA

2.4 V

2.7 3 3.3 3.6

Ω330 Ω470

2 kΩ

inf.

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SFH 7743

Maßzeichnung

Package Outlines

Maße in mm (inch) / Dimensions in mm (inch)

SFH 7743

2009-09-02 10

Anschlußbelegung

Pin configuration

Empfohlene Pipette

Recommended pickup nozzle

Maße in mm/ Dimensions in mm

Pin # Description

1external LED (anode pin) or

Id for driver circuit

2GND

3Out

4Test (must be connected to GND)

5 Vdd

6Prog

Bauteilaufnahme

device pickup

Vakuum Pipette sollte das Bauteil am rechteckigen Außenrahmen fasse n.

Laminar vacuum pickup nozzle shou ld use the rectangular outer wall of the device for handling.

GPLY7058

3.8 (0.150)

ø1.5 (0.059)

3.6 (0.142)

13 (0.512)

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SFH 7743

Empfohlenes Lötpaddesign

Recommended Solderpad Design

Maße in mm / Dimensions in mm

Gurtverpackung

Taping

Maße in mm / Dimensions in mm

SFH 7743

2009-09-02 12

Maße in mm / Dimensions in mm

2009-09-02 13

SFH 7743

Lötbedingungen Vorbehandlung nach JEDEC Level 4

Soldering Conditions Preconditioning acc. to JEDEC Level 4

Reflow Lötprofil für bleifreies Löten (nach J-STD-020C)

Reflow Soldering Profile for lead free soldering (acc. to J-STD-020C)

Published by

OSRAM Opto Semiconductors GmbH

Leibnizstrasse 4, D-93055 Regensburg

www.osram-os.com

The information describes the type of component and shall not be considered as assured characteristics. Due to the

special conditions of the manufacturing processes of Sensor, the typical data or calculated correlations of technical

parameters can only reflect statistical figures. These do not necessarily correspond to the actual parameters of each

single product, which could differ from the typical data and calculated correlations or the typical characteristic line. If

requested, e.g. because of technical improvements, these typ. data will be changed without any further notice.

Terms of delivery and rights to change design reserved. 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 transport. 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 systems must be expressly authorized for such purpose! Critical

components 1 , may only be used in life-supp ort devices or systems 2 with the express written approval of OSRAM OS.

1 A critical componen t is a component usedin a life-support device or syste m whose failure can reasonably be expected

to cause the failure of that life-support devic e or system, or to a ffect its safety or e ffectiveness of that device or system.

2 Life support devices or syste ms are intended (a) to be implanted in the human body, o r (b) to support and/or maintain

and sustain human life. If they fail, it is reasonable to assume that the he alth of the user may be endangered.

OHLA0687

˚C

120 s max

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