4N45

Maximum Reverse Diode Voltage : 5 V
Packaging : Tube
Maximum Forward Diode Voltage : 1.7 V
Maximum Input Diode Current : 20 mA
Maximum Power Dissipation : 100 mW
Maximum Baud Rate : 100 KBps
Maximum Operating Temperature : + 70 C
Minimum Operating Temperature : 0 C
Package / Case : PDIP-6
Current Transfer Ratio : 2000 %


Features:

* High Current Transfer Ratio1500% Typical
* Low Input Current Requirement0.5 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 -2500 V rms for 1 Minute




Application

* Telephone Ring Detector
* Digital Logic Ground Isolation
* Low Input Current Line Receiver
* Line Voltage Status IndicatorLow Input Power Dissipation
* Logic to Reed Relay Interface
* Level Shifting
* Interface Between Logic Families




Pinout






Specifications

Storage Temperature, T_S ........................................-55 to +125
Operating Temperature, TA ......................................-40 to +85
Lead Solder Temperature, max................................. 260 for 10 s
(1.6 mm below seating plane)
Average Input Current, I_F................................................. 20 mA^[1]
Peak Input Current, I_F......................................................... 40 mA
(50% duty cycle, 1 ms pulse width)
Peak Transient Input Current, I_F............................................1.0 A
( 1 s pulse width, 300 pps)
Reverse Input Voltage, V_R .........................................................5 V
Input Power Dissipation, P_I............................................ 35 mW^[2]
Output Current, I_O(Pin 5) ............................................... 60 mA^[3]
Emitter-Base Reverse Voltage (Pins 4-6).................................0.5 V
Output Voltage, VO (Pin 5-4)
4N45 ............................................................................. -0.5 to 7 V
4N46 ........................................................................... -0.5 to 20 V
Output Power Dissipation ...............................................100 mW^[4]
Infrared and Vapor Phase Reflow Temperature
(Option #300) ..........................................see Fig. 1, Thermal Profile




Description

The 4N45 optocouplers contain a GaAsP light emitting diode optically coupled to a high gain photodetector IC.

The excellent performance of 4N45 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 of 4N45 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 of 4N45 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. Compat-ibility 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 ) 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 A is available upon request.

Parameters:

Technical/Catalog Information	4N45
Vendor	Avago Technologies US Inc.
Category	Isolators
Isolation Voltage	3750Vrms
Input Type	DC
Output Type	Darlington with Base
Current - Output/Channel	60mA
Voltage - Output	7V
Vce Saturation (Max)	-
Current Transfer Ratio (Min)	200% @ 10mA
Mounting Type	Through Hole
Package / Case	6-DIP
Packaging	Tube
Number of Circuits	1 - Single
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	4N45 4N45 516 1021 5 ND 51610215ND 516-1021-5