Especificações Técnicas

OUTROS PART NUMBERS PARA ESTE COMPONENTE: MTC5234C THE FAN5234 PWM CONTROLLER PROVIDES HIGH EFFICIENCY AND REGULATION WITH AN ADJUSTABLE OUTPUT FROM 0.9 V TO 5.5 V REQUIRED TO POWER I/O, CHIP-SETS, MEMORY BANKS, OR PERIPHERALS IN HIGH-PERFORMANCE NOTEBOOK COMPUTERS, PDAS, AND INTERNET APPLIANCES. SYNCHRONOUS RECTIFICATION AND HYSTERETIC OPERATION AT LIGHT LOADS CONTRIBUTE TO A HIGH EFFICIENCY OVER A WIDE RANGE OF LOADS. THE HYSTERETIC MODE OF OPERATION CAN BE DISABLED IF PWM MODE IS DESIRED FOR ALL LOAD LEVELS. EFFICIENCY IS FURTHER ENHANCED BY USING THE MOSFET-S RDS(ON) AS A CURRENT-SENSE COMPONENT. FEED-FORWARD RAMP MODULATION, AVERAGE CURRENT MODE CONTROL, AND INTERNAL FEEDBACK COMPENSATION PROVIDE FAST RESPONSE TO LOAD TRANSIENTS.   THE FAN5234 MONITORS THESE OUTPUTS AND GENERATES A PGOOD (POWER-GOOD) SIGNAL WHEN THE SOFT-START IS COMPLETED AND THE OUTPUT IS WITHIN ±10% OF ITS SET POINT. A BUILT-IN OVER-VOLTAGE PROTECTION PREVENTS THE OUTPUT VOLTAGE FROM GOING ABOVE 120% OF THE SET POINT. NORMAL OPERATION IS AUTOMATICALLY RESTORED WHEN THE OVER-VOLTAGE CONDITIONS CEASE. UNDER-VOLTAGE PROTECTION LATCHES THE CHIP OFF WHEN THE OUTPUT DROPS BELOW 75% OF ITS SET VALUE AFTER THE SOFTSTART SEQUENCE IS COMPLETED. AN ADJUSTABLE OVER-CURRENT MONITORS THE OUTPUT CURRENT BY SENSING THE VOLTAGE DROP ACROSS THE LOWER MOSFET. FEATURES WIDE INPUT VOLTAGE RANGE FOR MOBILE SYSTEMS: 2 V TO 24V EXCELLENT DYNAMIC RESPONSE WITH VOLTAGE FEED-FORWARD AND AVERAGE-CURRENT-MODE CONTROL LOSSLESS CURRENT SENSING ON LOW-SIDE MOSFET OR PRECISION OVER-CURRENT VIA SENSE RESISTOR VCC UNDER-VOLTAGE LOCKOUT POWER-GOOD SIGNAL LIGHT-LOAD HYSTERETIC MODE MAXIMIZES EFFICIENCY 300 KHZ OR 600 KHZ OPERATION OPERATING TEMPERATURE RANGE: -10°C TO 85°C TSSOP16 PACKAGE THIS IS A PB-FREE DEVICE APPLICATIONS MOBILE PC REGULATOR HANDHELD PC POWER MANUFACTURER: FAIRCHILD PRODUCT CATEGORY: SWITCHING CONTROLLERS TOPOLOGY: BOOST NUMBER OF OUTPUTS: 2 OUTPUT SWITCHING FREQUENCY: 300 KHZ TO 600 KHZ DUTY CYCLE MAX: 87 % INPUT VOLTAGE: 2 V TO 24 V OUTPUT VOLTAGE: 900 MV TO 15 V OUTPUT CURRENT: 1.3 MA MINIMUM OPERATING TEMPERATURE: 10 C MAXIMUM OPERATING TEMPERATURE: 85 C MOUNTING STYLE: SMD/SMT PACKAGE / CASE: TSSOP-16 PACKAGING: REEL PACKAGING: CUT TAPE PACKAGING: MOUSEREEL BRAND: FAIRCHILD OPERATING SUPPLY VOLTAGE: 2 V TO 24 V PRODUCT: VOLTAGE CONTROLLERS PRODUCT TYPE: SWITCHING CONTROLLERS SERIES: FAN5234 FAN5234 IC FAN5234MTCX SWITCH CONTROLLER PWM TSSOP-16 MAIORES DETALHES DE FAN5234 NO SITE DO FABRICANTE: HTTPS://WWW.ONSEMI.COM/PDF/DATASHEET/FAN5234-D.PDF TAGS DE FAN5234: FAN5234MTCX, FAN5234MTC, MTC5234C, CI PWM, PWM CONTROLER, CONTROLADOR PWM, MTC5234

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