Stanford PHYSICS 105 - Dual Channel Low Input Current, High Gain Optocouplers

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Dual Channel Low InputCurrent, High GainOptocouplersTechnical DataFeatures• High Current Transfer Ratio– 1800% Typical• Low Input CurrentRequirements – 0.5 mA• Low Output SaturationVoltage – 0.1 V• High Density Packaging• Performance Guaranteedover Temperature0°Cto70°C• LSTTL Compatible• High Output Current –60 mA• Safety ApprovalUL Recognized - 3750 V rmsfor 1 Minute and5000 V rms* for 1 minuteCSA Approved• Available in 8 Pin DIP andSO-8 Footprint• MIL-PRF-38534 HermeticVersion Available (HCPL-5730/5731)• Surface Mount Gull WingOption Available for 8-PinDIP (Option 300)Applications• Digital Logic GroundIsolation• Telephone Ring Detector• Level Shifting• EIA RS-232C Line Receiver• Polarity Sensing• Low Input Current LineReceiver - Long Line or PartyLine• Microprocessor BusIsolation• Current Loop Receiver• Line Voltage Status Indicator-Low Input PowerDissipationHCPL-2730 HCPL-0730HCPL-2731 HCPL-0731DescriptionThese dual channel optocouplerscontain a separated pair of GaAsPlight emitting diodes opticallycoupled to a pair of integratedhigh gain photo detectors. Theyprovide extremely high currenttransfer ratio and excellent input-output common mode transientimmunity. A separate pin for thephotodiodes and first gain stages(VCC) permits lower output satura-tion voltage and higher speedoperation than possible withconventional photodarlingtontype optocouplers. In addition,VCC may be as low as 1.6 VFunctional DiagramCAUTION: It is advised that normal static precautions be taken in handling and assembly of this component toprevent damage and/or degradation which may be induced by ESD.*5000 V rms/1 minute withstand voltage rating is for Option 020 (HCPL-2730, HCLP-2731) products only.A 0.1 µF bypass capacitor connected between pins 5 and 8 is recommended.VO2VO1VCCGNDANODE 1CATHODE 1CATHODE 2ANODE 275682341TRUTH TABLELEDONOFFVOLOWHIGH2without adversely affecting theparametric performance.These dual channel optocouplersare available in an 8-Pin DIP andin an industry standard SO-8package. The following is a crossreference table listing the 8-PinDIP part number and theelectrically equivalent SOIC-8 partnumber. 8-Pin DIP SO-8HCPL-2730 HCPL-0730HCPL-2731 HCPL-0731The SO-8 does not require“through holes” in a PCB. Thispackage occupies approximatelyone-third the footprint area of thestandard dual-in-line package.The lead profile is designed to becompatible with standard surfacemount processes.Guaranteed operation at low inputcurrents and the high currenttransfer ratio (CTR) reduce themagnitude and effects of CTRdegradation.The outstanding high temperatureperformance of this splitDarlington type output amplifierresults from the inclusion of anintegrated emitter-base bypassresistor which shunts photodiodeand first stage leakage currents toground.The HCPL-2731/0731 have a400% minimum CTR at an inputcurrent of only 0.5 mA making itideal for use in low input currentapplications such as MOS, CMOS,and low power logic interfacing orRS232C data transmissionsystems. In addition, the highCTR and high output currentcapability make this deviceextremely useful in applicationswhere a high fanout is required.Compatibility with high voltageCMOS logic systems is guaranteedby the 18 V VCC and VO specifica-tions and by testing output highleakage (IOH) at 18 V.The HCPL-2730/0730 are speci-fied at an input current of 1.6 mAand have a 7 V VCC and VO rating.The 300% minimum CTR allowsTTL to TTL interfacing at thisinput current.Important specifications such asCTR, leakage current, and outputsaturation voltage are guaranteedover the 0°C to 70°C temperaturerange to allow trouble-free systemoperation. Selection for lowerinput currents down to 250 µA isavailable upon request.Selection GuideWidebody 8-Pin DIP Package Hermetic(300 Mil) Small Outline SO-8 (400 mil) Single andDual Single Dual Minimum Absolute DualSingle Channel Channel Channel Single Input ON Maxi- ChannelChannel Package Package Package Channel Current Minimum mum PackagesPackage HCPL- HCPL- HCPL- Package (IF) CTR VCCHCPL-6N139[1]2731 0701[1]0731 HCNW139[1]0.5 mA 400% 18 V6N138[1]2730 0700[1]0730 HCNW138[1]1.6 mA 300% 7 VHCPL-4701[1]4731[1]070A[1]073A[1]40 µA 800% 18 V0.5 mA 300% 20 V 5701[1]5700[1]5731[1]5730[1]Note:1. Technical data are on separate Agilent publications.3Ordering InformationSpecify Part Number followed by Option Number (if desired).Example:HCPL-2731#XXXX020 = 5000 V rms/1 Minute UL Rating Option.*300 = Gull Wing Surface Mount Option, 50 per tube.**500 = Tape and Reel Packaging Option, 1000 per reel.XXXE = Lead Free OptionOption data sheets available. Contact your Agilent sales representative or authorized distributor forinformation.*For HCPL-2731 and HCPL-2730 only.**Gull wing surface mount option applies to through hole parts only.Remarks: The notation “#” is used for existing products, while (new) products launched since 15th July 2001 and lead free option will use “–”SchematicIF265GND34VO2VF2IO2+–IF187VCC12VO1ICCVF1IO1–+HCPL-2731/0731 SHIELDUSE OF A 0.1 µF BYPASS CAPACITOR CONNECTEDBETWEEN PINS 5 AND 8 IS RECOMMENDED (SEE NOTE 8)4Package Outline Drawings8-Pin DIP Package (HCPL-2731/HCPL-2730)8-Pin DIP Package with Gull Wing Surface Mount Option 300 (HCPL-2731/HCPL-2730)9.65 ± 0.25(0.380 ± 0.010)1.78 (0.070) MAX.1.19 (0.047) MAX.A XXXXZYYWWDATE CODE1.080 ± 0.320(0.043 ± 0.013)2.54 ± 0.25(0.100 ± 0.010)0.51 (0.020) MIN.0.65 (0.025) MAX.4.70 (0.185) MAX.2.92 (0.115) MIN.DIMENSIONS IN MILLIMETERS AND (INCHES).567843215° TYP.OPTION CODE*ULRECOGNITIONUR0.254+ 0.076- 0.051(0.010+ 0.003)- 0.002)7.62 ± 0.25(0.300 ± 0.010)6.35 ± 0.25(0.250 ± 0.010)TYPE NUMBER*MARKING CODE LETTER FOR OPTION NUMBERS"L" = OPTION 020OPTION NUMBERS 300 AND 500 NOT MARKED.NOTE: FLOATING LEAD PROTRUSION IS 0.25 mm (10 mils) MAX.3.56 ± 0.13(0.140 ± 0.005)0.635 ± 0.25(0.025 ± 0.010)12° NOM.9.65 ± 0.25(0.380 ± 0.010)0.635 ± 0.130(0.025 ± 0.005)7.62 ± 0.25(0.300 ± 0.010)567843219.65 ± 0.25(0.380 ± 0.010)6.350 ± 0.25(0.250 ± 0.010)1.016 (0.040)1.27 (0.050)10.9 (0.430)2.0 (0.080)LAND PATTERN RECOMMENDATION1.080 ± 0.320(0.043 ± 0.013)3.56 ± 0.13(0.140 ± 0.005)1.780(0.070)MAX.1.19(0.047)MAX.2.54(0.100)BSCDIMENSIONS IN MILLIMETERS (INCHES).LEAD COPLANARITY = 0.10 mm (0.004 INCHES).NOTE: FLOATING LEAD PROTRUSION IS 0.25 mm (10 mils) MAX.0.254+ 0.076- 0.051(0.010+ 0.003)- 0.002)5Small Outline SO-8 Package (HCPL-0731/HCPL-0730)XXXYWW876543215.994 ± 0.203(0.236 ± 0.008)3.937


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Stanford PHYSICS 105 - Dual Channel Low Input Current, High Gain Optocouplers

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