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4N45300 Fiches technique(PDF) 1 Page - Agilent(Hewlett-Packard) |
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4N45300 Fiches technique(HTML) 1 Page - Agilent(Hewlett-Packard) |
1 / 7 page High Gain Darlington Output Optocouplers Technical Data 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 -2500 V rms for 1 Minute CSA Approved 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 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 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 (IOH) 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. 4N45 4N46 *JEDEC Registered Data **JEDEC Registered up to 70 °C. Functional Diagram 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. TRUTH TABLE (POSITIVE LOGIC) LED OUTPUT ON L OFF H 5 1 2 3 4 6 ANODE CATHODE VB GND VO Description The 4N45/46 optocouplers contain a GaAsP light emitting diode optically coupled to a high gain photodetector IC. 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. 5965-3576E 1-434 |
Numéro de pièce similaire - 4N45300 |
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Description similaire - 4N45300 |
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