OPI125 (TX, TXV)
© TT electronics plc Issue C 02/2018 Page 1
OPTEK Technology, Inc.
1645 Wallace Drive, Carrollton, TX 75006|Ph: +1 972 323 2200
www.optekinc.com | www.electronics.com
General Note
TT Electronics reserves the right to make changes in product specicaon without
noce or liability. All informaon is subject to TT Electronics’ own data and is
considered accurate at me of going to print.
Descripon:
Each OPI125TX and OPI125TXV is an opcally coupled isolator that consists of a gallium aluminum arsenide infrared light
eming diode (OP235 TX or OP235TXV) and a monolithic integrated circuit which incorporates a photodiode, a linear
amplier and a Schmi trigger on a single die (OPL800TX or OPL800TXV), sealed in a high dielectric plasc housing. The
device features TTL/LSTTL compable logic level output which can drive up to 8 TTL loads directly without addional
circuitry. Also featured are medium speed data rates to 250 KBaud with typical rise and fall mes of 70 nanoseconds.
These devices are designed for applicaons that require high voltage isolaon between input and output.
TX and TXV device components are processed to OPTEK’s military screening program paerned aer MIL-PRF-19500.
Please refer to Applicaon Bullens 208 and 210 for addional design informaon and reliability (degradaon) data.
Applicaons:
Requiring high voltage isolaon
between input and output
Electrical isolaon in dirty
environments
Industrial equipment
Medical equipment
Features:
High current transfer rao
15 kV electrical isolaon
Direct TTL/LSTTL interface
High noise immunity
Data rates to 250 KBaud
Part
Number
LED
Peak
Wavelength
Sensor
Photologic®
Isolaon
Voltage
(,000)
tPLH / tPHL
Typ (ns)
IF (mA)
Typ /
Max
VCE
(Volts)
Max
Lead
Length /
Spacing
OPI125TX 890 nm Totem Pole 15 5 / 5 7.5 / 25 35.0 0.40" / 0.75"
OPI125TXV
Pin # LED Pin # Photologic®
1 Anode 3 Output
2 Cathode 4 Vcc
5 Ground
DIMENSIONS ARE IN: [MILLIMETERS]
INCHES
© TT electronics plc
General Note
TT Electronics reserves the right to make changes in product specicaon without
noce or liability. All informaon is subject to TT Electronics’ own data and is
considered accurate at me of going to print.
OPI125 (TX, TXV)
Issue C 02/2018 Page 2
OPTEK Technology, Inc.
1645 Wallace Drive, Carrollton, TX 75006|Ph: +1 972 323 2200
www.optekinc.com | www.electronics.com
Absolute Maximum Rangs (TA=25°C unless otherwise noted)
Operang Temperature Range -65° C to +150° C
Storage Temperature Range -55° C to +125° C
Input-to-Output Isolaon Voltage(1) ± 15 k VDC
Lead Soldering Temperature [1/16 inch (1.6mm) fro case for 5 seconds with soldering iron] (1) 260° C
Power Dissipaon(2) 250 mW
Input Diode
Forward DC Current 100 mA
Reverse Voltage 2 V
Power Dissipaon(2) 200 mW
Output Phototransistor
Connuous Collector Current 50 mA
Collector-Base Voltage 30 V
Collector-Emier Voltage 30 V
Emier-Base Voltage 5 V
Power Dissipaon(2) 250 mW
Electrical Characteriscs (TA = 25°C unless otherwise noted)
Input Diode
SYMBOL PARAMETER MIN TYP MAX UNITS TEST CONDITIONS
VF Forward Voltage(4)
0.90 1.25 1.50
V
IF = 10 mA
1.00 1.45 1.70 IF = 10 mA, TA = -55° C
0.70 1.10 1.30 IF = 10 mA, TA = 100° C
IR Reverse Current - 0.10 10 µA VR = 2 V
Photologic®
VCC Operang Supply Voltage 4.8 5.2 V
ICC Supply Current 7.0 15.0 mA VCC = 5.2V, IF = 0 or 7.5 mA
Notes:
(1) Measured with input leads shorted together and output leads shorted together in air
with a maximum relave humidity of 50%.
(2) Derate linearly 2.0 mW/° C above 25° C.
(3) Derate linearly 2.5 mw/° C above 25° C
(4) Measurement is taken during the last 500 µs of a single 1.0 ms test pulse. Heang due to
increased pulse rate or pulse width can cause change in measurement results.
© TT electronics plc
General Note
TT Electronics reserves the right to make changes in product specicaon without
noce or liability. All informaon is subject to TT Electronics’ own data and is
considered accurate at me of going to print.
OPI125 (TX, TXV)
Issue C 02/2018 Page 3
OPTEK Technology, Inc.
1645 Wallace Drive, Carrollton, TX 75006|Ph: +1 972 323 2200
www.optekinc.com | www.electronics.com
Electrical Characteriscs (TA = 25°C unless otherwise noted)
SYMBOL PARAMETER MIN TYP MAX UNITS TEST CONDITIONS
Coupled
IF(+) LED Posive-Going Threshold Current(1)
- - 7.5 mA VCC = 5.0 V
- - 7.5 mA VCC = 5.0 V, TA = -55°C
- - 7.5 mA VCC = 5.0 V, TA = 100°C
IF(+)/IF(-) Hysteresis Rao - 2.0 - - -
VOL Low Level Output Voltage - - 4.0 V VCC = 4.8 V, IOL = 13.0 mA, IF = 0
VOH High Level Output Voltage 2.4 - - V VCC = 4.8 V, IOH = -800 µA, IF = 7.5mA
IOS Short Circuit Output Current -30.0 - -120 mA VCC = 5.2 V, IF = 7.5 mA, Output = GND
VIOS Isolaon Voltage (Input-to-Output) 15.0 kV See Note 1
tr, tf Output Rise Time and Fall Time - 70.0 100 ns VCC = 5.0 V, TA = 25°C
IF = 0 or 10.0 mA
IF = 10.0 kHz, DC = 50%
RL = 8 TTL Loads
tPLH, tPHL Propagaon Delay, Low to High & High to Low - 5.0 10.0 µs
Notes:
(1) Measured with input leads shorted together and output leads shorted together in air witMeasurement is taken during the last 500 µs of a single 1.0 ms test pulse. Heang due to increased
pulse rate or pulse width can cause change in measurement results.