Homedatasheet4N45500

4N45500 Datasheet

High Gain Darlington Output Optocouplers
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Description

Features, Applications
High Gain Darlington Output Optocouplers Technical Data

High Current Transfer Ratio�1500% Typical Low Input Current Requirement�0.5 mA Performance Guaranteed over 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 CSA Approved

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 emitterbase 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 (IOH) 18 V. The 4N45 has a 250% minimum CTR 1.0 mA input current and 7 V minimum breakdown voltage rating. Selection for lower input current down �A is available upon request.

Applications

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

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. 1-434 5965-3576E

Specify part number followed by Option Number (if desired).

300 = Gull Wing Surface Mount Lead Option 500 = Tape/Reel Package Option (1 K min) Option data sheets available. Contact your Hewlett-Packard sales representative or authorized distributor for information.

1 ANODE + VF CATHODE 2 4 TRUTH TABLE (POSITIVE LOGIC) LED OUTPUT ON L OFF 5 VO

DIMENSIONS IN mm (INCHES) TOLERANCES: xx.xx = 0.01 xx.xxx = 0.001 (unless otherwise specified)

The 4N45 and 4N46 have been approved by the following regulatory organizations: UL Recognized under UL 1577, Component Recognition Program, File E55361.

Figure 1. Maximum Solder Reflow Thermal Profile. (Note: Use of non-chlorine activated fluxes is recommended.)

CSA Approved under CSA Component Acceptance Notice #5, File CA 88324.

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 Units 0.08 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
Option 300 � surface mount classification is Class A in accordance with CECC 00802.

Storage Temperature, TS............................................. to +125�C Operating Temperature, TA........................................... to +85�C Lead Solder Temperature, max.......................................... 260�C for (1.6 mm below seating plane) Average Input Current, IF......................................................... 20 mA[1] Peak Input Current, IF................................................................... mA (50% duty cycle, 1 ms pulse width) Peak Transient Input Current, IF...................................................... 1 �s pulse width, 300 pps) Reverse Input Voltage, VR................................................................. 5 V Input Power Dissipation, PI.................................................... 35 mW[2] Output Current, IO (Pin 60 mA[3] Emitter-Base Reverse Voltage (Pins 0.5 V Output Voltage, VO (Pin 20 V Output Power Dissipation..................................................... 100 mW[4] Infrared and Vapor Phase Reflow Temperature (Option #300).......................................... see Fig. 1, Thermal Profile


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