Especificações Técnicas

FEATURES 1OPTIMIZED FOR OFF-LINE AND DC-TO-DC CONVERTERS LOW START-UP CURRENT ( AUTOMATIC FEED-FORWARD COMPENSATION PULSE-BY-PULSE CURRENT LIMITING ENHANCED LOAD-RESPONSE CHARACTERISTICS UNDERVOLTAGE LOCKOUT WITH HYSTERESIS DOUBLE-PULSE SUPPRESSION HIGH-CURRENT TOTEM-POLE OUTPUT INTERNALLY TRIMMED BANDGAP REFERENCE 500-KHZ OPERATION ERROR AMPLIFIER WITH LOW OUTPUT RESISTANCE DESIGNED TO BE INTERCHANGEABLE WITH UC2842 AND UC3842 SERIES 2   APPLICATIONS SWITCHING REGULATORS OF ANY POLARITY TRANSFORMER-COUPLED DC/DC CONVERTORS   DESCRIPTION THE TL284X AND TL384X SERIES OF CONTROL INTEGRATED CIRCUITS PROVIDE THE FEATURES THAT ARE NECESSARY TO IMPLEMENT OFF-LINE OR DC-TO-DC FIXED-FREQUENCY CURRENT-MODE CONTROL SCHEMES, WITH A MINIMUM NUMBER OF EXTERNAL COMPONENTS. SOME OF THE INTERNALLY IMPLEMENTED CIRCUITS ARE AN UNDERVOLTAGE LOCKOUT (UVLO), FEATURING A START-UP CURRENT OF LESS THAN 1 MA, AND A PRECISION REFERENCE TRIMMED FOR ACCURACY AT THE ERROR AMPLIFIER INPUT. OTHER INTERNAL CIRCUITS INCLUDE LOGIC TO ENSURE LATCHED OPERATION, A PULSE-WIDTH MODULATION (PWM) COMPARATOR (THAT ALSO PROVIDES CURRENT-LIMIT CONTROL), AND A TOTEM-POLE OUTPUT STAGE DESIGNED TO SOURCE OR SINK HIGH-PEAK CURRENT. THE OUTPUT STAGE, SUITABLE FOR DRIVING NCHANNEL MOSFETS, IS LOW WHEN IT IS IN THE OFF STATE. TL3842P SWITCHING CONTROLLERS CURRENT MODE PWM PDIP-8 MAIORES DETALHES DE TL3842P NO SITE DO FABRICANTE: HTTPS://WWW.TI.COM/LIT/DS/SYMLINK/TL3845.PDF?TS=1653385579543 TAGS DE TL3842P: TL3842P

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