4N45/4N46
High Gain Darlington Output Optocouplers
Data Sheet
Description
The 4N45/46 optocouplers contain a GaAsP light
emitting diode optically coupled to a high gain
photodetector IC.
The excellent performance over temperature results
from the inclusion of an integrated emitter-base
bypass resistor which shunts photodiode and first
stage leakage currents as well as bleeding off excess
base drive to ground. External access to the second
stage base provides the capability for better noise
rejection than a conventional photodarlington
detector. An external resistor or capacitor at the
base can be added to make a gain-bandwidth or input
current threshold adjustment. The base lead can also
be used for feedback.
The high current transfer ratio at very low input
currents permits circuit designs in which adequate
margin can be allowed for the effects of optical
coupling variations.
The 4N46 has a 350% minimum CTR at an input
current of only 0.5 mA making it ideal for use in low
input current applications such as MOS, CMOS and
low power logic interfacing. Compatibility with high
voltage CMOS logic systems is assured by the 20 V
minimum breakdown voltage of the output transistor
and by the guaranteed maximum output leakage
(I
OH
) at 18 V.
The 4N45 has a 250% minimum CTR at 1.0 mA input
current and a 7 V minimum breakdown voltage
rating.
Selection for lower input current down to 250
µA
is
available upon request.
Features
• High current transfer ratio – 1500% typical
• Low input current requirement – 0.5 mA
• Performance guaranteed over 0°C to 70°C temperature
range
• Internal base-emitter resistor minimizes output
leakage
• Gain-bandwidth adjustment pin
• Safety approval
UL Recognized -3750 V rms for 1 minute
CSA Approved IEC/EN/DIN EN 60747-5-2
Applications
• Telephone ring detector
• Digital logic ground isolation
• Low input current line receiver
• Line voltage status indicator–low input power
dissipation
• Logic to read relay interface
• Level shifting
• Interface between logic families
Functional Diagram
TRUTH TABLE
(POSITIVE LOGIC)
ANODE 1
6 V
B
LED
ON
OUTPUT
L
H
CATHODE 2
5 V
O
OFF
3
4 GND
* JEDEC Registered Data
** JEDEC Registered up to
70°C.
CAUTION: It is advised that normal static precautions be taken in handling and assembly of this component to
prevent damage and/or degradation which may be induced by ESD.
Ordering Information
4N45/4N46 are UL Recognized with 3750 Vrms for 1 minute per UL1577 and is approved under CSA
Component Acceptance Notice #5, File CA 88324.
Option
RoHS
non RoHS
Compliant Compliant
-000E
no option
-300E
-300
-500E
-500
-060E
-060
-360E
-360
-560E
-560
Part
Number
4N45
4N46
Package
300 mil DIP-6
300 mil DIP-6
300 mil DIP-6
300 mil DIP-6
300 mil DIP-6
300 mil DIP-6
Surface
Mount
X
X
X
X
Gull
Wing
X
X
X
X
Tape
& Reel
UL 5000 Vrms/
1 Minute rating
X
X
X
X
X
IEC/EN/DIN
EN 60747-5-2 Quantity
50 per tube
50 per tube
1500 per reel
50 per tube
50 per tube
1500 per reel
To order, choose a part number from the part number column and combine with the desired option from
the option column to form an order entry.
Example 1:
4N45-560E to order product of 300 mil DIP Gull Wing Surface Mount package in Tape and Reel packaging
with IEC/EN/DIN EN 60747-5-2 Safety Approval and RoHS compliant.
Example 2:
4N45 to order product of 300 mil DIP package in Tube packaging and non RoHS compliant.
Option datasheets are available. Contact your Avago sales representative or authorized distributor for
information.
Remarks: The notation ‘#XXX’ is used for existing products, while (new) products launched since July
15, 2001 and RoHS compliant will use ‘–XXXE.’
Schematic
1
ANODE
+
V
F
CATHODE
–
2
4
I
F
I
O
5
V
O
GND
TRUTH TABLE
(POSITIVE LOGIC)
LED
OUTPUT
ON
L
OFF
H
6
V
B
2
Outline Drawing
9.40 (0.370)
9.90 (0.390)
6
5
4
TYPE
NUMBER
7.36 (0.290)
7.88 (0.310)
A XXXX
YYWW RU
PIN
ONE
DOT
1
2
3
DATE CODE
UL
RECOGNITION
0.20 (0.008)
0.33 (0.013)
5° TYP.
1.78 (0.070) MAX.
6.10 (0.240)
6.60 (0.260)
4.70 (0.185) MAX.
(0.020)
(0.040)
2.66 (0.105) MIN.
0.45 (0.018)
0.65 (0.025)
2.28 (0.090)
2.80 (0.110)
2.16 (0.085)
2.54 (0.100)
DIMENSIONS IN MILLIMETERS AND (INCHES).
Outline Drawing – Option 300
9.65 ± 0.25
(0.380 ± 0.010)
LAND PATTERN RECOMMENDATION
6.35 ± 0.25
(0.250 ± 0.010)
10.9 (0.430)
1.27 (0.050)
2.0 (0.080)
1.78
(0.070)
MAX.
4.19
MAX.
(0.165)
9.65 ± 0.25
(0.380 ± 0.010)
7.62 ± 0.25
(0.300 ± 0.010)
0.635 ± 0.130
(0.025 ± 0.005)
0.20 (0.008)
0.30 (0.013)
2.29
(0.090)
2.54
(0.100)
TYP.
0.635 ± 0.25
(0.025 ± 0.010)
12° NOM.
NOTE: FLOATING LEAD PROTRUSION IS 0.25 mm (10 mils) MAX.
3
Solder Reflow Thermal Profile
300
PREHEATING RATE 3°C + 1°C/–0.5°C/SEC.
REFLOW HEATING RATE 2.5°C ± 0.5°C/SEC.
PEAK
TEMP.
245°C
PEAK
TEMP.
240°C
PEAK
TEMP.
230°C
2.5°C ± 0.5°C/SEC.
160°C
150°C
140°C
3°C + 1°C/–0.5°C
30
SEC.
30
SEC.
SOLDERING
TIME
200°C
TEMPERATURE (°C)
200
100
PREHEATING TIME
150°C, 90 + 30 SEC.
50 SEC.
TIGHT
TYPICAL
LOOSE
ROOM
TEMPERATURE
0
0
50
100
150
200
250
TIME (SECONDS)
Note: Non-halide flux should be used.
Recommended Pb-Free IR Profile
TIME WITHIN 5 °C of ACTUAL
PEAK TEMPERATURE
20-40 SEC.
t
p
T
p
T
L
260 +0/-5 °C
217 °C
RAMP-UP
3 °C/SEC. MAX.
150 - 200 °C
TEMPERATURE
T
smax
T
smin
RAMP-DOWN
6 °C/SEC. MAX.
t
s
PREHEAT
60 to 180 SEC.
25
t 25 °C to PEAK
t
L
60 to 150 SEC.
TIME
NOTES:
THE TIME FROM 25 °C to PEAK TEMPERATURE = 8 MINUTES MAX.
T
smax
= 200 °C, T
smin
= 150 °C
Note: Non-halide flux should be used.
4
Regulatory Information
The 4N45 and 4N46 have been
approved by the following
regulatory organizations:
UL
Recognized under UL 1577,
Component Recognition
Program, File E55361.
IEC/EN/DIN EN 60747-5-2
Approved under:
IEC 60747-5-2:1997 + A1:2002
EN 60747-5-2:2001 + A1:2002
DIN EN 60747-5-2 (VDE 0884
Teil 2):2003-01.
(Option 060 only)
CSA
Approved under CSA
Component Acceptance Notice
#5, File CA 88324.
Insulation and Safety Related Specifications
Parameter
Min. External Air Gap
(External Clearance)
Min. External Tracking Path
(External Creepage)
Min. Internal Plastic Gap
(Internal Clearance)
Symbol
L(IO1)
L(IO2)
Value
7.1
7.4
0.08
Units
mm
mm
mm
Conditions
Measured from input terminals to output
terminals, shortest distance through air
Measured from input terminals to output
terminals, shortest distance path along body
Through insulation distance, conductor to
conductor, usually the direct distance
between the photoemitter and photodetector
inside the optocoupler cavity
DIN IEC 112/VDE 0303 PART 1
Material Group (DIN VDE 0110, 1/89, Table 1)
Tracking Resistance
(Comparative Tracking Index)
Isolation Group
CTI
200
IIIa
Volts
Option 300 – surface mount classification is Class A in accordance with CECC 00802.
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