ILD255 SIEMENS | Alldatasheet

Document overview

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Technical content

5–1

FEATURES

  • AC or Polarity Insensitive Inputs
  • Continuous Forward Current, 130 mA
  • Applications—Telecommunications - Ring Detection - Loop Current Detector
  • Built-in Reverse Polarity Input Protection
  • Improved CTR Symmetry
  • Industry Standard DIP Package
  • Underwriters Lab File #E52744
  • VDE 0884 Available with Option 1

DESCRIPTION

The ILD255 is a bidirectional input optically cou- pled isolator consisting of two high current Gallium Arsenide infrared LEDs coupled to a silicon NPN phototransistor per channel. The ILD255 has a minimum CTR of 50% These optocouplers are ideal for applications requiring AC signal detection and monitoring. Maximum Ratings (Each Channel) Emitter Peak Pulsed Current (1 m Power Dissipation at 25 Derate Linearly from 25 C Detector Power Dissipation at 25 Derate Linearly from 25 C Package Isolation Test Voltage (between emitter and detector referred to standard climate 23 C/50%RH, RMS Isolation Resistance V IO =500 V, T A =25 IO W V IO =500 V, T A =100 IO W Total Dissipation at 25 Derate Linearly from 25 C Storage Temperature –55 C Operating Temperature –55 C Lead Soldering Time at 260 VDE

Electrical Characteristics

A =25 Parameter MIn. Typ. Max. Unit Condition Emitter Forward Voltage V F 1.2 1.5 V I F 10 mA Detector BV CEO 30 50 V I C =10 mA BV ECO 71 0 VI E =10 m A I CEO 55 0n A V CE =10 V Package V CEsat

0.4 V I

F 16 mA, I C =2 mA DC Current Transfer Ratio 50 % I F 10mA, V CE =10 V Symmetry CTR at +10 mA CTR at –10 mA 0.50 1.0 2.0 Dimensions in inches (mm) .268 (6.81) .255 (6.48) .390 (9.91) .379 (9.63) .045 (1.14) .030 (.76) Typ. .100 (2.54) Typ. 10° Typ. 3°–9° .305 typ. (7.75) typ. .022 (.56) .008 (.20) .135 (3.43 .115 (2.92) Pin One I.D. .150 (3.81) .130 (3.30) .040 (1.02) .030 (.76 ) Emitter Collector Collector Emitter Anode/ Cathode Cathode/ Anode Anode/ Cathode Cathode/ Anode DUAL CHANNEL ILD255 BIDIRECTIONAL INPUT OPTOCOUPLER