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UC3842AD Datasheet(PDF) 2 Page - Fairchild Semiconductor |
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UC3842AD Datasheet(HTML) 2 Page - Fairchild Semiconductor |
2 / 8 page UC3842A/UC3843A 2 Absolute Maximum Ratings Electrical Characteristics (VCC = 15V, RT = 10KΩ, CT = 3.3nF, TA = 0°C to + 70°C ,Unless otherwise specified) Parameter 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 Parameter Symbol Conditions Min. Typ. Max. Unit REFERENCE SECTION Output Voltage VREF TJ = 25 °C, IO = 1mA 4.9 5.0 5.1 V Line Regulation ∆VREF VCC = 12V to 25V - 6 20 mV Load Regulation ∆VREF IO = 1mA to 20mA - 6 25 mV Output Short Circuit ISC Ta = 25 °C - - 100 - 180 mA OSILLATOR SECTION Initial Accuracy FOSC TJ = 25 °C 47 52 57 KHz Voltage Stability STV VCC = 12V to 25V - 0.2 1 % Amplitude VOSC VPIN4, Peak to Peak - 1.7 - V Discharge Current IDISCHG TJ = 25 °C, 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) - 70 - dB Input Bias Current IBIAS - - - 2 -10 uA Delay to Output TD VPIN3 = 0 V to 2V (NOTE1) - 100 200 ns |
Similar Part No. - UC3842AD |
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Similar Description - UC3842AD |
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