High Voltage Isolator OPI1268 Features:  TTL compatible output  16 kV dc isolation  2Mbit/s  t -t ≤ 500 ns PHL PLH  Creepage path: 0.970” (24.64 mm)  Air path: 0.970” (24.64 mm)  UL recognized file No. E58730 Description: The OPI1268 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. Applications: Ordering Information  Data transmission for High Isolation Lead voltage isolation Part LED Peak Sensor Voltage t / t I (mA) V (V) Length / PLH PHL F CE  PCBoard power system Number Wavelength Photologic® kVDC Max (ns) Typ / Max Max Spacing isolation 0.12" / OPI1268 850 nm Open Collector 16 100 / 200 10 / 50 18  Industrial equipment power 0.98" isolation  Medical equipment power isolation  Office equipment Pin Function 1 Cathode 2 Anode 3 Vcc 4 Output 5 Ground General Note TT Electronics | OPTEK Technology TT Electronics reserves the right to make changes in product specification without 1645 Wallace Drive, Carrollton, TX 75006|Ph: +1 972 323 2200 notice or liability. All information is subject to TT Electronics’ own data and is www.ttelectronics.com | sensors@ttelectronics.com considered accurate at time of going to print. © TT electronics plc Issue C 11/2017 Page 1

High Voltage Isolator OPI1268 Absolute Maximum Ratings (T = 25o C unless otherwise noted) A Storage Temperature -40° C to +100° C Operating Temperature -40° C to +100° C Input-to-Output Isolation Voltage(2) 16 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 µs pulse width, 300 pps) 3.0 A Reverse Voltage 3.0 V Power Dissipation(1) 100 mW Output IC Maximum Supply Voltage 7 V Power Dissipation(4) 40 mW Maximum Output Voltage 18 V Maximum Output Current 25 mA Electrical Characteristics (T = 0° C to 70° C unless otherwise noted) A SYMBOL PARAMETER MIN TYP MAX UNITS TEST CONDITIONS Input Diode V Forward Voltage - 1.3 1.6 V I = 20 mA F F I Reverse Current - 0.1 100 µA V = 2.0 V R R Output IC (V = 4.5 V to 5.25 V) (See OPL550 for additional information—for reference only.) CC I High Level Output Current - 0.20 10 µA I = 0.0 mA, V = 18.0 V, Vcc = 5.25 V OH F OH V Low Level Output Voltage - 0.44 0.55 V I = 10.0 mA, I = 8.0 mA, Vcc = 4.5 V OL F OL I High Level Supply Current - 4.2 7 I = 0, Vcc = 5.25V CCH F mA I Low Level Supply Current - 6.7 10 I = 10.0 mA, Vcc = 5.25 V CCL F Coupled Characteristics (V = 5 V) CC C Coupling Capacitance - - 2 pF Input and output leads shorted. IO t Propagation Delay to Low Output Level - - 200 PLH ns Vcc=5V, I=30mA, R=560Ω F L t Propagation Delay to High Output Level - - 100 PHL VISO = 19.2kV dc I Isolation Leakage Current(5) - - 20 µA ISO I+ LED Positive Going Threshold Current 0.8 1.7 5.0 mA V = 5V, I = 8.0mA F CC OL Notes: (1) Derate LED linearly 1.33 mW/°C above 25°C. (2) UL recognition is for 16kV dc for one minute. (3) RMA flux is recommended. The duration can be extended to 10 seconds maximum when flow soldering. (4) Derate linearly 0.54m W/°C above 25°C. (5) Measured with input leads shorted together and output leads shorted together in air with a maximum relative humidity of 50%. General Note TT Electronics | OPTEK Technology TT Electronics reserves the right to make changes in product specification without 1645 Wallace Drive, Carrollton, TX 75006|Ph: +1 972 323 2200 notice or liability. All information is subject to TT Electronics’ own data and is www.ttelectronics.com | sensors@ttelectronics.com considered accurate at time of going to print. © TT electronics plc Issue C 11/2017 Page 2

High Voltage Isolator OPI1268 IF(+) vs Ta V(out) vs IF 10 6.0 5.0 8 VIOCLC = = 8 5.0.0 m VA put - V VTIOcaLc == = 28 45 m. 5°A CV mA Out 4.0 urrent - 6 ge Low IF - Forward C 24 V - Typical Volta(out)123...000 0 0.0 -40 -20 0 20 40 60 80 100 0 1 2 3 4 5 Ta - Ambient Temperature - °C IF - Forward Current - mA Vol vs Ambient Temperature IOH vs. Ambient Temperature 0.6 8 7 0.5 Vcc = 5.0 V VCC=4.50V VOH = 18.0 V IOL=8mA 6 ge - V0.4 IF=10mA olta 5 w Output V0.3 I - A mOH4 Lo 3 L - 0.2 O V 2 0.1 1 0.0 0 -40 -20 0 20 40 60 80 100 -40 -20 0 20 40 60 80 100 Ta - Ambient Temperature - C Ta - Ambient Temperature - °C Supply Current vs ICCH and ICCL vs Ambient temperature Variable Diode Forward Current (IF) vs Propagation Delay Time - (tPLH, tPHL) 9 120 VCC = 5.0 V 78 VIFC =ICC =1C 0L5m.2A5 Time - ns 110100 fR =L =1 0506 0k HΩz mA6 Delay 90 Avg. tPLH Delay Supply Current - 345 VICF C=I C= 0C 5mH.2A5 Typical Propagation 678000 Avg. tPHL Delay 12 t, t - PLHPHL 4500 0 30 -40 -20 0 20 40 60 80 100 1 2 3 4 5 6 7 8 9 10 11 12 Ta - Ambient Temperature -c IF - Diode Forward Current - mA General Note TT Electronics | OPTEK Technology TT Electronics reserves the right to make changes in product specification without 1645 Wallace Drive, Carrollton, TX 75006|Ph: +1 972 323 2200 notice or liability. All information is subject to TT Electronics’ own data and is www.ttelectronics.com | sensors@ttelectronics.com considered accurate at time of going to print. © TT electronics plc Issue C 11/2017 Page 3

High Voltage Isolator OPI1268 dV/dT OOPIP1I216286 8d Vd/Vd/Td TE mEmittitetre r OPOI1PI2126688 ddVV/dT/d STen Ssoernsor 0.5 0.5 0.4 0.4 OPI1268… OPI1268 On (Spec 2 Volts) 0.3 OPI1268… 0.3 OPI1268 Off (Spec 0.8 Volts) 0.2 0.2 0.1 0.1 olts0 Volts 0 -0.V1 -0.1 -0.2 -0.2 -0.3 Pulse Leading Edge Pulse Trailing Edge -0.3 -0.4 2,000 volts Peak-Peak 2,000 volts Peak-Peak Pulse Leading Edge Pulse Trailing Edge -0.4 2,000 volts Peak-Peak 2,000 volts Peak-Peak Rise or Fall Time 20 ns 10%-90% Rise or Fall Time 20 ns 10%-90% -0.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -0.5 5 10 15 20 25 30 35 40 T45im50e (55ns60) 65 70 75 80 85 90 95 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 Time (ns) General Note TT Electronics | OPTEK Technology TT Electronics reserves the right to make changes in product specification without 1645 Wallace Drive, Carrollton, TX 75006|Ph: +1 972 323 2200 notice or liability. All information is subject to TT Electronics’ own data and is www.ttelectronics.com | sensors@ttelectronics.com considered accurate at time of going to print. © TT electronics plc Issue C 11/2017 Page 4

High Voltage Isolator OPI1268 Issue Change Description Approval Date Initial Release of OPI1266 (July 1996). July 1996 A OPI1268 (from PDF Catalog) 07/04 Combined OPI1266 and OPI1268 and put in new format. Inserted new A.1 Trevor Schelp 05/17/07 package drawing. A.2 Added Note 3 on page 2 Bob Procsal 08/21/07 A.3 Updated Table on page 3 Trevor Schelp 10/01/07 A.4 Separated OPI1266 form the OPI1268 Trevor Schelp 11/27/07 A.5 Reversed tPHL & tPLH times, Removed reference to Input Diode Trevor Schelp 05/07/2008 Change .01µF to 1.0µF on Figure 1. Change Peak Forward Current from B Trevor Schelp 11/11/10 50 mA to 30 mA. C Change “2 Mbd transfer rate” to 2MBit/s. Trevor Schelp 11/23/10 D Add the UL certification E58730 Cosmin Suciu 4/9/15 Page 2 Note 1: added “m” to 1.33m W… E Page 2 added Note 4: Derate linearly 0.54m W/°C above 25°C Tom Osborne Removed (1) on “Input-to-Output Isolation Voltage” F Deleted asterisk General Note TT Electro nics reserv es the right to make changes in product specification without TT Electronics | OPTEK Technology 1645 Wallace Drive, Carrollton, TX 75006|Ph: +1 972 323 2200 notice or liability. All information is subject to TT Electronics’ own data and is www.ttelectronics.com | sensors@ttelectronics.com considered accurate at time of going to print. © TT electronics plc Issue C 11/2017 Page 5

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