Especificações Técnicas

GENERAL DESCRIPTION PS224 IS SPECIALLY DESIGNED FOR SWITCHING POWER SUPPLY SYSTEM. FOUR IMPORTANT S OF PS224 ARE THE FOLLOWINGS: OVER-VOLTAGE PROTECTION, OVER-CURRENT PROTECTION, UNDER-VOLTAGE PROTECTION AND POWER GOOD SIGNAL GENERATING.   OVP/UVP (OVER-VOLTAGE/UNDER-VOLTAGE PROTECTION) MONITORS 3.3V, 5V AND DUAL 12V TO PROTECT OUR POWER SUPPLY AND PC, FPO/ GOES TO HIGH WHEN ONE OF THESE SUPPLY VOLTAGES EXCEEDS THEIR NORMAL OPERATION VOLTAGE RANGE. OCP (OVER CURRENT PROTECTION) MONITORS IS33, IS5, IS12A, IS12B INPUT CURRENT SENSE. AN ADJUSTABLE OVER-CURRENT CONDITION COMPOSED OF IREF AND -PROTECTION CURRENT RANGE RESISTOR- HELPS USERS DESIGN OCP EASILY. AN ADDITIONAL PROTECTION INPUT PIN PROVIDES THE FLEXIBILITY FOR DESIGN PROTECTION CIRCUIT. POWER GOOD SIGNAL GENERATING NOTIFIES PERSONAL COMPUTER WHEN POWER SUPPLY IS READY OR POWER SUPPLY IS GOING TO SHUTDOWN, THEREFORE IT CAN PROVIDE A RELIABLE POWER SUPPLY ENVIRONMENT.   FEATURES - OVER/UNDER-VOLTAGE PROTECTION AND LOCK OUT - OVER-CURRENT PROTECTION AND LOCK OUT - ADDITIONAL PROTECTION INPUT - FAULT PROTECTION OUTPUT WITH OPEN DRAIN OUTPUT STAGE - OPEN DRAIN POWER GOOD OUTPUT SIGNAL FOR POWER GOOD INPUT - BUILT-IN 300MS POWER GOOD DELAY - AC ON 75MS DELAY FOR UV/OC PROTECTION - 38MS PSON/ CONTROL DE-BOUNCE - WIDE POWER SUPPLY RANGE (3.8V~16V) - SPECIAL CARE FOR AC POWER OFF   PS224 CI MONITOR DE CORRENTE PFC 4 CANAIS DIP-14 MAIORES DETALHES DE PS224 NO SITE DO FABRICANTE: HTTPS://PDF1.ALLDATASHEET.COM/DATASHEET-PDF/VIEW/825475/SITI/PS224.HTML TAGS DE PS224: PS229, PS222L, PS222, PS223, PS224, 3-CHANNEL SECONDARY MONITORING IC WITH OVER-CURRENT PROTECTION AND AN ADDITIONAL 12V OCP CHANNEL, CI PFC FONTE ATX, CI CONTROLADOR DE PFC

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