optek technology inc. ? 1645 wallace drive, carrollton, texas 75006 phone: (972) 323-2200 or (800) 341-4747 fax: (972) 3 23-2396 sensors@optekinc .com www. optekinc.com issue c december 2010 page 1 of 4 optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. opi1268s high voltage / high speed opto-isolator description: the opi1268s is a high voltage isolator with a digital output that is capable of high speed data transmission. the input of the opi1268 consists of a high-efficiency gaalas led with a peak wavelength of 850 nm, which is optically coupled to the output optical ic. a photodiode in the output ic detects the incoming modulated light and converts it to a proportionate current. this current is fed into a high- gain linear amplifier which is temperature, current and voltage compensated. the result is a highly stable digital output with an open collector inverter configuration. this device produces dc and ac voltage isolation between the input and output circuitry while providing ttl signal integrity. features: ? 20kv isolation ? 30 kv/us dv/dt immunity ? 2 mbit/s transfer rate ? t phl -t plh 50 ns ? creepage path: 24 mm ? ttl compatible ? 6 axis / 10g rms load rating product photo here rohs applications: ? transportation systems ? pc board power systems ? hybrid vehicle systems ? medical systems ? control systems certifications: ? ul file # e58730 ? vde (pending) ? atex iecx (pending) ? ip6x / ip7x (pending) part number led peak wavelength sensor photologic? isolation voltage (kv) t plh / t phl max (ns) i f (ma) typ / max v ce (v) max lead length (mm) lead spacing (mm) opi1268s 850 nm open collector 20 100 10 / 50 18 3.6 2.0 ordering information
optek technology inc. ? 1645 wallace drive, carrollton, texas 75006 phone: (972) 323-2200 or (800) 341-4747 fax: (972) 3 23-2396 sensors@optekinc .com www. optekinc.com issue c december 2010 page 2 of 4 optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. opi1268s high voltage / high speed opto-isolator electrical characteristics (t a = 0 c to 70 c unless otherwise noted) symbol parameter min typ max units test conditions input diode v f forward voltage - 1.4 1.8 v i f = 20 ma i r reverse current - 0.1 100 a v r = 2.0 v output ic (v cc = 4.5 v to 5.25 v) (see opl550 for addit ional information?for reference only.) i oh high level output current - 0.20 25 a i f = 0.0 ma, v oh = 18.0 v, vcc = 5.25 v v ol low level output voltage - 0.35 0.55 v i f = 10.0 ma, i ol = 8.0 ma, vcc = 4.5 v i cch high level supply current - 5.5 7 ma i f = 0, vcc = 5.25v i ccl low level supply current - 7.5 10 i f = 10.0 ma, vcc = 5.25 v coupled characteristics (v cc = 5 v) c io coupling capacitance - - 2 pf input and output leads shorted. t plh propagation delay to low output level - - 100 ns see figure 1 t phl propagation delay to high output level - - 100 i iso isolation leakage current - - 1 a viso = @ 7kv rms ( input and output leads shorted) i f + led positive going threshold current 0.8 1.7 5.0 ma v cc = 5v, i ol = 8.0ma dv/dt voltage spike immunity 30 kv/us absolute maximum ratings ( t a = 25 o c unless otherwise noted) storage temperature -50 c to +100 c operating temperature -50 c to +100 c input-to-output isolation voltage (1)(2) 20 kvdc lead soldering temperature (1/16? (1.6 mm) from case for 5 seconds with soldering iron) (3) 260 c input diode continuous forward current 30 ma peak forward current (1 s pulse width, 300 pps) 3.0 a reverse voltage 3.0 v power dissipation (1) 100 mw maximum supply voltage 7 v power dissipation (1) 40 mw output ic maximum output voltage 18 v maximum output current 25 ma notes: (1) derate linearly 1.33 w/c above 25c (2) ul registered under e58730. (3) rma flux is recommended. the duration can be ex tended to 10 seconds maximum when flow soldering.
optek technology inc. ? 1645 wallace drive, carrollton, texas 75006 phone: (972) 323-2200 or (800) 341-4747 fax: (972) 3 23-2396 sensors@optekinc .com www. optekinc.com issue c december 2010 page 3 of 4 optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. opi1268s high voltage / high speed opto-isolator if(+) vs ta 0 2 4 6 8 10 -40 -20 0 20 40 60 80 100 ta - ambient temperature - c if - forward current - ma v cc = 5.0 v i ol = 8.0 ma v (out) vs i f 0.0 1.0 2.0 3.0 4.0 5.0 6.0 012345 i f - forward current - ma v (out) - typical voltage low output - v vcc = 4.5 v i ol = 8 ma ta = 25 c vol vs ambient temperature 0.0 0.1 0.2 0.3 0.4 0.5 0.6 -40-20 0 20406080100 ta - ambient temperature - c vol - low output voltage - v v cc =4.50v i ol =8ma i f =10ma i oh vs. ambient temperature 0 1 2 3 4 5 6 7 8 -40-20 0 20406080100 ta - ambient temperature - c i oh - a vcc = 5.0 v v oh = 18.0 v supply current vs i cch and i ccl vs ambient temperature 0 1 2 3 4 5 6 7 8 9 -40-200 20406080100 ta - ambient temperature -c supply current - ma v cc = 5.25 i f = 10ma i ccl v cc = 5.25 i f = 0ma i cch variable diode forward current (i f ) vs propagation delay time - (t plh , t phl ) 30 40 50 60 70 80 90 100 110 120 123456789101112 i f - diode forward current - ma t plh , t phl - typical propagation delay time - ns avg. tplh delay avg. tphl delay v cc = 5.0 v r l = 560 ? f = 100 kh z
optek technology inc. ? 1645 wallace drive, carrollton, texas 75006 phone: (972) 323-2200 or (800) 341-4747 fax: (972) 3 23-2396 sensors@optekinc .com www. optekinc.com issue c december 2010 page 4 of 4 optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. opi1268s high voltage / high speed opto-isolator
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