Sensing and Control
High Voltage Isolator
OPI1268
Features:
TTLcompa bleoutput
16KVisola on
2Mbit/s
tPHLtPLH500ns
Creepagepath:0.970(24.64mm)
Airpath:0.970(24.64mm)
ULrecognizedfileNo.E58730*
Descrip on:
TheOPI1268isahighvoltageisolatorwithadigitaloutputthatiscapableofhighspeeddatatransmission.Theinputofthe
OPI1268consistsofahigheciencyGaAlAsLEDwithapeakwavelengthof850nm,whichisop callycoupledtotheoutput
op calIC.AphotodiodeintheoutputICdetectstheincomingmodulatedlightandconvertsittoapropor onatecurrent.
Thiscurrentisfedintoahighgainlinearamplifierwhichistemperature,currentandvoltagecompensated.Theresultisa
highlystabledigitaloutputwithanopencollectorinverterconfigura on.ThisdeviceproducesDCandACvoltageisola on
betweentheinputandoutputcircuitrywhileprovidingTTLsignalintegrity.
Applica ons:
OrderingInforma on
DatatransmissionforHigh
voltageisola on
PCBoardpowersystem
isola on
Industrialequipmentpower
isola on
Part
Number
LEDPeak
Wavelength
Sensor
Photologic
Isola on
Voltage
(,000)
tPLH/tPHL
Max(ns)
IF(mA)
Typ/Max
VCE(V)
Max
Lead
Length/
Spacing
OPI1268
850nm
OpenCollector
16
100/200
10/50
18
0.12"/
0.98"
Medicalequipmentpower
isola on
Oceequipment
Pin#
Func on
Cathode
Anode
Vcc
Output
Ground
GeneralNote
TTElectronicsreservestherighttomakechangesinproductspecifica on
withoutno ceorliability.Allinforma onissubjecttoTTElectronicsowndata
andisconsideredaccurateat meofgoingtoprint.
TTelectronicsplc
1645WallaceDrive,Carrollton,TX75006|Ph:+19723232200
www.optekinc.com|www. electronics.com
IssueE09/2015Page1
Sensing and Control
High Voltage Isolator
OPI1268
AbsoluteMaximumRa ngs(TA=25oCunlessotherwisenoted)
StorageTemperature
40Cto+100C
Opera ngTemperature
40Cto+100C
(2)
InputtoOutputIsola onVoltage
16KVDC
(3)
LeadSolderingTemperature(1/16(1.6mm)fromcasefor5secondswithsolderingiron)
260C
InputDiode
Con nuousForwardCurrent
30mA
PeakForwardcurrent(1spulsewidth,300pps)
3.0A
ReverseVoltage
3.0V
(1)
PowerDissipa on
100mW
OutputIC
MaximumSupplyVoltage
7V
(4)
PowerDissipa on
40mW
MaximumOutputVoltage
18V
MaximumOutputCurrent
25mA
ElectricalCharacteris cs(TA=0Cto70Cunlessotherwisenoted)
SYMBOL
PARAMETER
MIN
TYP
MAX
UNITS
TESTCONDITIONS
InputDiode
VF
ForwardVoltage
1.3
1.6
IF=20mA
IR
ReverseCurrent
0.1
100
VR=2.0V
OutputIC(VCC=4.5Vto5.25V)(SeeOPL550foraddi onalinforma onforreferenceonly.)
IOH
HighLevelOutputCurrent
0.20
10
IF=0.0mA,VOH=18.0V,Vcc=5.25V
VOL
LowLevelOutputVoltage
0.44
0.55
IF=10.0mA,IOL=8.0mA,Vcc=4.5V
ICCH
HighLevelSupplyCurrent
4.2
ICCL
LowLevelSupplyCurrent
6.7
10
mA
IF=0,Vcc=5.25V
IF=10.0mA,Vcc=5.25V
CoupledCharacteris cs(VCC=5V)
CIO
CouplingCapacitance
tPLH
Propaga onDelaytoLowOutputLevel
200
tPHL
Propaga onDelaytoHighOutputLevel
100
IISO
Isola onLeakageCurrent
IF+
LEDPosi veGoingThresholdCurrent
0.8
1.7
pF
Inputandoutputleadsshorted.
ns
SeeFigure1
VISO=@7kVRMS
(inputandoutputleadsshorted)
5.0
mA
VCC=5V,IOL=8.0mA
Notes:
(1) Deratelinearly1.33mW/Cabove25C
(2) ULregisteredunderE58730.
(3) RMAfluxisrecommended.Thedura oncanbeextendedto10secondsmaximumwhenflowsoldering.
(4) Deratelinearly0.54mW/Cabove25C
GeneralNote
TTElectronicsreservestherighttomakechangesinproductspecifica on
withoutno ceorliability.Allinforma onissubjecttoTTElectronicsowndata
andisconsideredaccurateat meofgoingtoprint.
TTelectronicsplc
1645WallaceDrive,Carrollton,TX75006|Ph:+19723232200
www.optekinc.com|www. electronics.com
IssueE09/2015Page2
Sensing and Control
High Voltage Isolator
OPI1268
IF(+) vs Ta
V(out) vs IF
10
6.0
IF - Forward Current - mA
V(out) - Typical Voltage Low Output - V
5.0
VCC = 5.0 V
IOL = 8.0 mA
Vcc = 4.5 V
IOL = 8 mA
Ta = 25 C
4.0
3.0
2.0
1.0
0.0
0
-40
-20
20
40
60
80
100
IF - Forward Current - mA
Ta - Ambient Temperature - C
IOH vs. Ambient Temperature
Vol vs Ambient Temperature
0.6
7
Vcc = 5.0 V
VOH = 18.0 V
VCC=4.50V
IOL=8mA
IF=10mA
0.4
IOH - A
VOL - Low Output Voltage - V
0.5
0.3
3
0.2
2
0.1
0.0
-40
-20
20
40
60
80
-40
100
-20
40
60
80
100
Variable Diode Forward Current (IF) vs Propagation Delay Time - (tPLH, tPHL)
Supply Current vs ICCH and ICCL vs Ambient temperature
9
120
tPLH, tPHL - Typical Propagation Delay Time - ns
ICCL
6
5
ICCH
VCC = 5.0 V
RL = 560
f = 100 kHz
110
VCC = 5.25
IF = 10mA
Supply Current - mA
20
Ta - Ambient Temperature - C
Ta - Ambient Temperature - C
VCC = 5.25
IF = 0mA
3
2
1
100
90
Avg. tPLH Delay
Avg. tPHL Delay
80
70
60
50
40
30
-40
-20
20
40
60
80
Ta - Ambient Temperature -c
GeneralNote
TTElectronicsreservestherighttomakechangesinproductspecifica on
withoutno ceorliability.Allinforma onissubjecttoTTElectronicsowndata
andisconsideredaccurateat meofgoingtoprint.
TTelectronicsplc
100
10
11
12
IF - Diode Forward Current - mA
1645WallaceDrive,Carrollton,TX75006|Ph:+19723232200
www.optekinc.com|www. electronics.com
IssueE09/2015Page3
Sensing and Control
High Voltage Isolator
OPI1268
dV/dT
OPI1268 dV/dT Emitter
OPI1268 dV/dT Sensor
0.5
0.5
0.4
OPI1268 On (Spec 2 Volt s)
0.2
0.2
0.1
0.1
0
-0.1
OPI1268 On (Spec 2 Volt s)
OPI1268 Of f (Spec 0.8 Volt s)
0.3
Volts
0
-0.1
-0.2
-0.2
-0.3
-0.4
-0.3
Pulse Leading Edge
Pulse Trailing Edge
2,000 volt s Peak-Peak
2,000 volt s Peak-Peak
Rise or Fall Time 20 ns 10%-90%
Rise or Fall Time 20 ns 10%-90%
-0.4
-0.5
Pulse Leading Edge
Pulse Trailing Edge
2,000 volt s Peak-Peak
2,000 volt s Peak-Peak
Rise or Fall Time 20 ns 10%-90%
Rise or Fall Time 20 ns 10%-90%
Time (ns)
GeneralNote
TTElectronicsreservestherighttomakechangesinproductspecifica on
withoutno ceorliability.Allinforma onissubjecttoTTElectronicsowndata
andisconsideredaccurateat meofgoingtoprint.
TTelectronicsplc
950
900
850
800
750
700
650
600
550
500
450
400
350
300
250
200
150
100
950
900
850
800
750
700
650
600
550
500
450
400
350
300
250
200
150
100
50
-0.5
50
Vo lts
0.4
OPI1268 Of f (Spec 0.8 Volt s)
0.3
Time (ns)
1645WallaceDrive,Carrollton,TX75006|Ph:+19723232200
www.optekinc.com|www. electronics.com
IssueE09/2015Page4
