SFH551 INFINEON | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 6

Technical content

Features

  • Bipolar IC with open-collector output  Digital output, TTL compatible  Sensitive in visible and near IR range  Low switching threshold  Transfer rate ≤ 5 Mbit/s  2.2 mm aperture holds standard 1000 micron plastic fiber  No fiber stripping required  Molded microlens for efficient coupling Plastic Connector Housing  Mounting screw attached to the connector  Interference-free transmission from light-tight housing  Transmitter and receiver can be flexibly positioned  No cross talk  Auto insertable and wave solderable  Supplied in tubes

Applications

 Household electronics  Power electronics  Optical networks

A bypass capacitor (100 nF) near the device (distance ≤ 3 cm) is necessary between ground and VCC. In critical applications the distance may be shorter.

Description

The SFH551/1V is a transimpedance amplifier with digital TTL open collector output stage and integrated photodiode. The active area of the detector in connection with the molded microlens gives an efficient coupling from the end of a plastic fiber. The receiver is fully DC coupled and therefore no line code is needed. The SFH551/1V includes a Schmitt trigger function to provide stable output states over the whole dynamic range. For optical input power levels above 6 µW typically the electrical output will be logical “low” and vice versa. With noise free Vcc and GND no undefined output signal is possible. SFH551/1 must not be used without shielding the ambient light, because ambient light causes malfunction when reaching the threshold level, noise or complete switching the output. Interference free transmission is possible by using the SFH551/1V with the black plastic connector housing. Vcc Rpullup Data-out GND

Parameter Symbol Limit Values Unit min. max. Operating Temperature Range TOP –40 +85 °C Storage Temperature Range TSTG –40 +100 °C Soldering Temperature (2 mm from case bottom, t ≤ 5 s) TS 260 °C Supply Voltage Range without Damage VCC –0.5 15 V Recommended and Guaranteed Maximum Voltage 5.5 V Minimum Supply Voltage for Function VCCmin 4V Minimum Pull-up Resistance (VCC = 5 V) Routmin 330 Ω Output Voltage V0 –0.5 15 V Output Current I0 50 mA Power Dissipation (output) P0 100 mW

Characteristics (TA = 25°C, VCC = 4.75 to 5.25 V) Parameter Symbol Values Unit min. typ. max. Maximum Photosensitivity Wavelength λSmax 700 nm Photosensitivity Spectral Range (S = 80% Smax) λ 600 780 nm SFH551/1-1 Optical Threshold Power (λ = 660 nm) for Output Low ΦINth ≥ 6 ≥ –22 µW dBm Maximum Optical Power (λ = 660 nm) Maximum Value of tPLH at Maximum Power ΦINL 1000 µW dBm Optical Power for Output High without Errors (λ = 660 nm) ΦINH ≤ 0.1 ≤ –40 µW dBm Propagation Delay (optical input to electrical output, with fast optical pulse) tPHL tPLH < 100 < 250 ns Current Consumption (without output current) Icc 4m A

Published by Infineon Technologies AG, St.-Martin-Strasse 53,

81669 München, Germany

© Infineon Technologies AG 2005. All Rights Reserved. Attention please! The information herein is given to describe certain components and shall not be considered as a guarantee of characteristics. Terms of delivery and rights to technical change reserved. We hereby disclaim any and all warranties, including but not limited to warranties of non-infringement, regarding circuits, descriptions and charts stated herein. Information For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office (www.infineon.com). Warnings Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered. SFH551/1-1 SFH551/1-1V Previous Version: 2004-03-19