NTE3045
Optoisolator
Silicon NPN Darlington Phototransistor Output
Description:
The NTE3045 is a gallium arsenide LED optically coupled to a Silicon Photo Darlington transistor in
a 6–Lead DIP type package designed for applications requiring electrical isolation, high breakdown
voltage, and high current transfer ratios. Characterized for use as telephone relay drivers but pro-
vides excellent performance in interfacing and coupling systems, phase and feedback controls, solid
state relays, and general purpose switching circuits.
Features:
D
High Sensitivity to Low Input Drive Current
D
High Collector–Emitter Breakdown Voltage: V
(BR)CEO
= 80V (Min)
D
High Input–Output Isolation Guaranteed: V
ISO
= 7500V (Peak)
Absolute Maximum Ratings:
(T
A
= +25°C, unless otherwise specified)
Input LED
Reverse Voltage, V
R
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3V
Continuous Forward Current, I
F
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60mA
LED Power Dissipation (T
A
= +25°C with Negligible Power in Output Detector), P
D
. . . . . . 120mW
Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.41mW/°C
Output Detector
Collector–Emitter Voltage, V
CEO
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80V
Emitter–Collector Voltage, V
ECO
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V
Detector Power Dissipation (T
A
= +25°C with Negligible Power in Input LED), P
D
. . . . . . . . 150mW
Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.76mW/°C
Total Device
Isolation Surge Voltage (Peak AC Voltage, 60Hz, 1sec Duration, Note 1), V
ISO
. . . . . . . . . . . 7500V
Total Device Power Dissipation (T
A
= +25°C), P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250mW
Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.94mW/°C
Operating Temperature Range, T
A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +100°C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C
Lead Temperature (During Soldering for 10sec, 1/16” from Case), T
L
. . . . . . . . . . . . . . . . . . +260°C
Note 1. Isolation surge voltage is an internal device dielectric breakdown rating. For this test, Pin1
and Pin2 are common, and Pin4, Pin5, and Pin6 are common.
Electrical Characteristics:
(T
A
= +25°C unless otherwise specified)
Parameter
Input LED
Reverse Leakage Current
Forward Voltage
Capacitance
Collector–Emitter Dark Current
Collector–Emitter Breakdown Voltage
Emitter–Collector Breakdown Voltage
Collector Output Current
Isolation Surge Voltage
Isolation Resistance
Isolation Capacitance
Switching
Turn–On Time
Turn–Off Time
Rise Time
Fall Time
t
on
t
off
t
r
t
f
V
CC
= 10V,
R
L
= 100Ω,
Ω
I
F
= 5mA
–
–
–
–
3.5
95
1
2
–
–
–
–
µs
µs
µs
µs
I
R
V
F
C
I
CEO
V
R
= 3V
I
F
= 10mA
V
R
= 0, f = 1MHz
V
CE
= 60V
–
–
–
–
80
5
50
7500
–
–
0.05
1.15
18
–
–
–
–
–
10
11
0.2
10
2.0
–
1
–
–
–
–
–
–
µA
V
pF
µA
V
V
mA
V
Ω
pF
Symbol
Test Conditions
Min
Typ
Max
Unit
Photodarlington
(T
A
= +25°C, I
F
= 0 unless otherwise specified)
V
(BR)CEO
I
C
= 1mA
V
(BR)ECO
I
E
= 100µA
I
C
V
ISO
R
ISO
C
ISO
V
CE
= 1.5V, I
F
= 10mA
60Hz Peak AC, 5sec,
Note 2, Note 3
V = 500V, Note 2
v = 0, f = 1MHz, Note 2
Coupled
(T
A
= +25°C unless otherwise specified)
Note 2. For this test LED Pin1 and Pin2 are common and Phototransistor Pin4 and Pin5 are common.
Note 3. Isolation Surge Voltage, V
ISO
, is an internal device dielectric breakdown rating.
6
5
4
Pin Connection Diagram
Anode
Cathode
N.C.
1
2
3
6
N.C.
5
Collector
4
Emitter
.200 (5.08)
Max
1
2
3
.260
(6.6)
Max
.070 (1.78) Max
.350 (8.89)
Max
.350
(8.89)
Max
.300 (7.62)
.085 (2.16) Max
.100 (2.54)
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