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| KA3882 |
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 FAIRCHILD
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2 page 
KA3882/3/4/5 SMPS CONTROLLER ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (VCC = 15V, RT = 10K `, CT = 3.3nF, TA = 0Îto + 85Î, Unless otherwise specified) Characteristic Symbol Value Unit Supply Voltage VCC 30 V Output Current IO + 1 A Analog Inputs (pin 2, 3) VI(ANA) - 0.3 to 6.3 V Error Amp. Output Sink Current ISINK(EA) 10 mA Power Dissipation PD 1W Characteristic Symbol Test Conditions Min Typ Max Unit REFERENCE SECTION Output Voltage VREF TJ = 25 Î, IO = 1mA 4.9 5.0 5.1 V Line Regulation LVREF VCC = 12V to 25V ï 620 mV Load Regulation LVREF IO = 1mA to 20mA ï 625 mV Output Short Circuit ISC Ta = 25 Î ï - 100 - 180 mA OSILLATOR SECTION Initial Accuracy FOSC TJ = 25 Î 47 52 57 KHz Voltage Stability STV VCC = 12V to 25V ï 0.2 1 % Amplitude VOSC VPIN4, Peak to Peak ï 1.7 ï V Discharge Current IDISCHG TJ = 25 Î, Pin4 = 2V 7.8 8.3 8.8 mA CURRENT SENSE SECTION Gain GV (NOTE 2, 3) 2.85 3 3.15 V/V Maximum Input Signal VI(MAX) VPIN1 = 5V(NOTE 2) 0.9 1.0 1.1 V PSRR PSRR VCC = 12V to 25V (NOTE 1, 2) ï 70 ï dB Input Bias Current IBIAS ïï - 2 -10 uA Delay to Output TD VPIN3 = 0V to 2V (NOTE1) ï 100 200 ns |
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