LH1556AAC, LH1556AACtr, lh1556ab www.vishay.com vishay semiconductors rev. 1.7, 25-jul-11 1 document number: 83842 for technical questions, contact: optocoupleranswers@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 dual 1 form a solid-state relay description the lh1556 dual 1 form a relays are spst normally open switches that can replace electromechanical relays in many applications. they are constructed using a gaaias led for actuation control and an integrated monolithic die for the switch output. the die, fabricated in a high-voltage dielectrically isolated technology is comprised of a photodiode array, switch co ntrol circuitry, and mosfet switches. in addition, the lh1556 ssrs employ current-limiting circuitry, en abling them to pass lightning surge testing as per ansi/tia -968-b and other regulatory surge requirements when overvoltage protection is provided. features ? dual channel (lh1546) ? current limit protection ? isolation test voltage 5300 v rms ? typical r on 28 ? ? load voltage 350 v ? load current 120 ma ? high surge capability ? clean bounce free switching ? low power consumption ? smd lead availabl e on tape and reel ? compliant to rohs directive 2002/95/ec and in accordance to weee 2002/96/ec applications ? general telecom switching - on/off hook control - ring relay - dial pulse - ground start - ground fault protection ? instrumentation ? industrial controls 13 24 86 75 s 2' s 2 s 1 s 1' s 2' s 2 s 1 s 1' i179034_2 dip smd agency approvals ul1577: file no. e52744 system code h, double protection csa: certification no. 093751 ordering information lh1556a##tr part number electr. variation package config. tape and reel package ul, csa smd-8, tubes LH1556AAC smd-8, tape and reel LH1556AACtr dip-8, tubes lh1556ab > 0.1 mm 7.62 mm dip s md
LH1556AAC, LH1556AACtr, lh1556ab www.vishay.com vishay semiconductors rev. 1.7, 25-jul-11 2 document number: 83842 for technical questions, contact: optocoupleranswers@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 notes ? stresses in excess of the abso lute maximum ratings can cause permanent damage to the device. functional operation of the devic e is not implied at these or any other conditions in excess of those give n in the operational sections of this document. exposure to abs olute maximum ratings for extended periods of the time can adversely affect reliability. (1) refer to current limit performance application note for a discussion on relay operation during transient currents. (2) refer to reflow profile for soldering conditions for surface mount ed devices (smd). refer to wave profile for soldering conditi ons for through hole devices (dip). note ? minimum and maximum values are testing requirements. typical valu es are characteristics of the device and are the result of en gineering evaluations. typical values are for information only and are not part of the testing requirements. absolute maximum ratings (t amb = 25 c, unless otherwise specified) parameter test condition symbol value unit input led continuous forward current i f 50 ma led reverse voltage i r ? 10 a v r 8.0 v output dc or peak ac load voltage i l ? 50 a v l 350 v continuous dc load current, one pole operating i l 120 ma continuous dc load curr ent, two poles operating i l 110 ma ssr peak load current (single shot) t = 100 ms i p (1) ma ambient temperature range t amb - 40 to + 85 c storage temperature range t stg - 40 to + 150 c pin soldering temperature (2) t = 10 s max. t sld 260 c input to output isolation voltage v iso 5300 v rms output power dissipation (continuous) p diss 550 mw electrical characteristics (t amb = 25 c, unless otherwise specified) parameter test condition symbol min. typ. max. unit input led forward current, switch turn-on i l = 100 ma, t = 10 ms i fon 1.1 2.0 ma led forward current, switch turn-off v l = 350 v i foff 0.2 1.0 ma led forward voltage i f = 10 ma v f 1.15 1.26 1.45 v output on-resistance ac/dc: pin 4 () to 6 () i f = 5.0 ma, i l = 50 ma r on 28 35 ? on-resistance dc: pin 4, 6 (+) to 5 (-) i f = 5.0 ma, i l = 100 ma r on 7.0 10 ? off-resistance i f = 0 ma, v l = 100 v r off 0.5 300 g ? current limit ac/dc i f = 5.0 ma, v l = 6.0 v, t = 5.0 ms i lmt 170 210 250 ma off-state leakage current i f = 0 ma, v l = 100 v i o 0.35 200 na i f = 0 ma, v l = 350 v i o 0.096 1.0 a output capacitance pin 4 to 6 i f = 0 ma, v l = 1.0 v c o 18 pf i f = 0 ma, v l = 50 v c o 6.7 pf switch offset i f = 5.0 ma v os 0.3 v transfer capacitance (input to output) v iso = 1.0 v c io 0.67 pf switching characteristics (t amb = 25 c, unless otherwise specified) parameter test condition symbol min. typ. max. unit turn-on time i f = 5.0 ma, i l = 50 ma t on 1.14 3.0 ms turn-off time i f = 5.0 ma, i l = 50 ma t off 0.71 3.0 ms
LH1556AAC, LH1556AACtr, lh1556ab www.vishay.com vishay semiconductors rev. 1.7, 25-jul-11 3 document number: 83842 for technical questions, contact: optocoupleranswers@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 typical characteristics (t amb = 25 c, unless otherwise specified) fig. 1 - recommended operating conditions fig. 2 - led voltage vs. temperature fig. 3 - led forward current vs. led forward voltage fig. 4 - led reverse curr ent vs. led reverse voltage fig. 5 - led current for sw itch turn-on vs. temperature fig. 6 - led dropout voltage vs. temperature ilh1556ab_00 80 60 0 40 120 100 20 0 20406080 - 20 - 40 load current (ma) ambient temperature (c) i fon = 2.0 ma i fon = 3.0 ma i fon = 4.0 ma i fon = 5.0 to 20 ma ilh1556ab_01 t a - ambient temperature (c) led forward voltage (v) 20 0 - 20 - 40 1.6 1.5 1.4 1.3 1.2 1.1 1.0 i f = 50 ma i f = 20 ma i f = 1.0 ma i f = 2.0 ma i f = 5.0 ma i f = 10 ma 40 60 80 ilh1556ab_02 0 20 40 60 80 100 120 led forward current (ma) 0 0.5 1 1.5 2 led forward voltage (v) t = 85 c t = 25 c t = - 40 c ilh1556ab_03 0 2 4 6 8 10 0 2040 6080100 led current (a) reverse led voltage (v) t = - 40 c t = 25 c t = 85 c ilh1556ab_04 - 45 - 30 - 15 0 15 30 45 60 - 40 - 20 0 20 40 60 80 temperature (c) led current for switch turn-on (%), normalized to 25 c i l = 100 ma ilh1556ab_05 1.02 1.06 1.10 1.14 1.18 1.22 1.26 - 40 - 20 0 20 40 60 80 temperature (c) led forward voltage (v) i l = 100 ma
LH1556AAC, LH1556AACtr, lh1556ab www.vishay.com vishay semiconductors rev. 1.7, 25-jul-11 4 document number: 83842 for technical questions, contact: optocoupleranswers@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 fig. 7 - load current vs. load voltage fig. 8 - current limit vs. temperature fig. 9 - switch breakdown voltage vs. load current fig. 10 - switch offset voltage vs. led current fig. 11 - on-resistance vs. temperature fig. 12 - variation in on -resistance vs. led current ilh1556ab_06 012345 load voltage (v) current limit (a) t = - 40 c i f = 5 ma 300 250 200 150 100 50 0 t = 25 c t = 85 c ilh1556ab_07 40 30 20 10 0 - 10 - 20 - 30 change in current limit (%) norm. to 25 c i f = 5 ma v l = 6 v temperature (c) - 40 - 20 0 20 40 60 80 ilh1556ab_08 60 50 40 30 20 10 0 load current (a) breakdown voltage (v) i f = 0 ma i l < 50 a 0 100 200 300 400 500 t = - 40 c t = 25 c t = 85 c ilh1556ab_09 0.0 0.5 1.0 1.5 2.0 2.5 25 35 45 55 65 75 85 temperature (c) switch offset voltage (mv) i f = 5 ma ilh1556ab_10 i f = 5 ma i l = 50 ma temperature (c) change in r on (%), norm. to 25 c 40 30 20 10 0 - 10 - 20 - 30 - 40 - 40 - 20 0 20 40 60 80 ilh1556ab_11 - 2 0 2 4 6 8 04 8121620 ac/dc r on variation (%) norm. at i f = 5 ma led forward current (ma) i f = 5 ma
LH1556AAC, LH1556AACtr, lh1556ab www.vishay.com vishay semiconductors rev. 1.7, 25-jul-11 5 document number: 83842 for technical questions, contact: optocoupleranswers@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 fig. 13 - switch capacitance vs. applied voltage fig. 14 - insertion loss vs. frequency fig. 15 - output isolation fig. 16 - leakage current vs. applied voltage at elevated temperatures fig. 17 - switch breakdown voltage vs. temperature fig. 18 - switch offset voltage vs. temperature ilh1556ab_12 0 10 20 30 40 50 0 20406080100 capacitance (pf) applied voltage (v) i f = 0 ma ilh1556ab_13 frequency (hz) 0.6 0.0 insertion loss (db) 0.5 0.4 0.2 0.1 10 2 10 3 10 4 10 5 0.3 r l = 600 i f = 5 ma ilh1546at_14 0 20 40 60 80 100 120 isolation (db) frequency (hz) 10 3 10 4 10 5 10 6 v p = 10 v r l = 50 ilh1556ab_15 0.1 1 10 100 1000 0 50 100 150 200 250 300 350 load voltage (v) leakage current (na) t = 85 c t = 70 c t = 50 c i f = 0 ma t = 20 c ilh1556ab_16 change in breakdown voltage (%) norm. to 25 c 8 0 4 2 6 - 6 - 8 - 4 - 10 - 2 ambient temperature (c) - 40 - 20 0 20 40 60 80 ilh1556ab_17 0.0 0.5 1.0 1.5 2.0 2.5 25 35 45 55 65 75 85 temperature (c) switch offset voltage (mv) i f = 5 ma
LH1556AAC, LH1556AACtr, lh1556ab www.vishay.com vishay semiconductors rev. 1.7, 25-jul-11 6 document number: 83842 for technical questions, contact: optocoupleranswers@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 fig. 19 - turn-on time vs. temperature fig. 20 - turn-off time vs. temperature fig. 21 - turn-on time vs. led current fig. 22 - turn-off time vs. led current ilh1556ab_18 change in turn-on time (%) norm. to 25 c temperature (c) 10 6 2 - 2 - 6 - 10 - 40 - 20 0 20 40 60 80 i f = 5 ma i l = 50 ma ilh1556ab_19 8 5 2 - 1 - 4 - 7 - 10 change in turn-off time (%) norm. to 25 c temperature (c) - 40 - 20 0 20 40 60 80 i f = 5 ma i l = 50 ma ilh1556ab_20 0 1020 304050 turn-on time (ms) i l = 50 ma t = - 40 c t = 20 c t = 85 c led forward current (ma) 18 15 12 9 6 3 0 ilh1556ab_21 turn-off time (ms) t = 85 c t = 25 c t = 40 c led forward current (ma) 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0 10 20304050 i l = 50 ma
LH1556AAC, LH1556AACtr, lh1556ab www.vishay.com vishay semiconductors rev. 1.7, 25-jul-11 7 document number: 83842 for technical questions, contact: optocoupleranswers@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 package dimensions in millimeters package marking (example) note ? tape and reel suffix (tr) is not part of the package marking. i178008 pin one id 6.81 6.48 9.91 9.63 1.14 0.76 4 typ. 2.54 typ. 10 3 to 9 7.62 typ. 0.56 0.46 0.30 0.20 3.30 2.79 3.81 3.30 0.89 0.51 6.35 5.84 4 3 2 1 0.79 1.27 5 6 78 dip iso method a i178009 pin one id 9.91 9.63 1.14 0.78 1.02 0.51 4 typ. 0.25 0.10 3.81 3.30 2.54 typ. 1.27 typ. 7.80 7.52 8 typ. 10.03 9.52 0.79 typ. 6.81 6.48 radius 0.3 typ. 10 3 to 7 smd iso method a 2.54 r 0.25 1.78 0.76 1.52 8 min. 11.05 lh1556 v yww h 68
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