MCT26 GE | Alldatasheet
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}GENL INSTR. OPTOELEK aa de fssa0128 oooe473 0 ei a el ee ee fe oe AI NOD IN f Bic net ee eee ee Ss 83 5 __ aoe . - Oe PACKAGE DIMENSIONS . FEATURES AND APPLICATIONS &oe i, + ° ee 15° MAX © AC line/digital logic isolator . 885 (270} . ® Digital logic/digital logic isolator l 6.35 (250)] wee ™ Telephone/telegraph line receiver 7 = Ti 008) = Twisted pair line receiver Tate Tear = High frequency power supply feedback contro! [Peat ag ilo © Relay contact monitor . . ™ Power supply monitor ™@ UL recognized — File E60151 SY OOP| F178 (OO) TYP ® High isolation voltage femme Vigo = 2500 V RMS, 1 minute WARP 258 (105) saneeli feast -f. WoW OM 1] Fe coi : V A ages d,| eee ce . y lL } 127, Gl fajem, Pry) 080 cae ‘G44 (OTE) CIMENSTONS IN mm ONCHES) Equivalent Circuit . ABSOLUTE MAXIMUM RATINGS Input Diode input to output voltage isolation .s.cos.-.-- Fe rm t 60 mA Total package power dissipation at 25°C. ambient Rovers wonaye CEE, 30V (LED plus detector) cece eceeereceeeereeeeees 260 mW Peak forward'current (1 ps pulse, 300 pps) ....-- 30A ELECTRO-OPTICAL CHARACTERISTICS (25°C Free Air Temperature Unless Otherwise Specified) . Ps CHARACTERISTICS MIN. ‘TYP. MAX. UNITS: TEST CONDITIONS Emitter . Forward voitage V- *, - 1.25 15 v p= 20mAa . Reverse current Ig - “15 10 HA Va=30V | : Capacitance C, - 50 - pF vio i Detector . . i Nee . - 150 - Vee 75 Vi Ie = 100 HA { BVceo 30 BB v Io = LOMA, ip = 0 } BVeco. . 7 12 = Vv le = 100 WA, Ip = 0 H . leo ie “5 100 nA. Vee 5 Vi lp = 0 Capacitance Collector-emitter Coe — 8 - pF Vee 70 : . BV cag, 30 165 - v te = 10HA ¢ ego, (dark) = -. 1. 100 nA Veg 7 5 Vs lp 20 . ‘ouple: . - . DC current transfer ratio CTR: 6 14 - % I, = 10 MA, Vcg = 10 V, note 1 D ce Breakdown voltage . 4000 | - voc t= 1 second : 2500 _ -- VAC, RMS @ f = 60 Hz, t= 1 minute Resistance emitter-detector Ry 1022 102 - 2 Vew = 500 VDC : Voge (SAT) -° - 0.2 03 ~ v 1g = 250A, Ip = 20mA . Vee lc a : aoae 0.2 05 vi. Ic = 1.6 MA, Ip = 60 MA Capacitance LED to detector Cig “— 0.5 = oF f= 1MH2 Bandwidth (see figure 5) By, - 300 - kHz Ig = 2mA, note 2 Rise time + fall time (see oper. schematics) t, 1, 2 - us IG =2MA, Veg = 10 V, note 3 . - -* . . ~ . 141
GENL INSTR: OPTOELEK 88 De fpssio12a ooo0e974 2 T TYPICAL ELECTRO-OPTICAL CHARACTERISTIC CURVES T- 41-8 3 (25°C Free Air Temperature Unless Otherwise Specified) Fro Zo POLO COS AS 2 os Bos ey Mee) CT eR EA 5 of es E80 4 _aeeeeen Meee) A eer an = 5 Sas se lA ‘+ a ae ce i LLL Le aeraen [| 2 rrr tt 4 gH oqo tT TTT) 5 et 8 me 2 oe ee eee ie a a con Output Current ‘Temperature (°C) “TTT EE) “Co oom
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fad A veicaenet eC TTMTTNIG Xi eon FR re eT POACHERS Coo Nt Oras Th E7CoCoL) TS : REE EEE 2 COON NTN BNC Tl ,] CnC CAS Prerryty | (CEI CC CN jos ves Temperature Goltector Current For additional characteristic curves, see figures 2, 3, 5, 6, 8, 11, 12, & 13 on MCT2. OPERATING SCHEMATICS ; ee on enna wo Mee 79 V0UTE wer oa ae, Mee vous cto-y71 fener wl Way { berecton “eo Te | ostecton Lim 4 LJ-44! rus " A 1000, R= 1000 * ca ° ca38 Modulation Circuit Used to Obtain Output vs. Frequency Plot Circuit Used to Obtain Switching Time vs. Collector Current Plot NOTES 1. The current transfer ratio (IC/If) is the ratio of the detector collector current to the LED input current with VceE at 10 volts. H 2. The frequency at which ic is 3. dB down from the 1 kHz value. ‘ 3. Rise time (tr) is the time required for the collector current to increase from 10% of its final value to 90%. Fall time (t#) is the time required for the collector current to decrease from 90% of its initial value to 10%. 142