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TL494 Folha de dados(PDF) 4 Page - E-Tech Electronics LTD |
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TL494 Folha de dados(HTML) 4 Page - E-Tech Electronics LTD |
4 / 8 page TL494 LINEAR INTEGRATED CIRCUIT UNISONICTECHNOLOGIESCO.,LTD 4 of 8 www.unisonic.com.tw QW-R103-004. I ABSOLUTE MAXIMUM RATINGS (unless otherwise specified) PARAMETER SYMBOL RATINGS UNIT Supply Voltage(Note 3) VCC 41 V Amplifier Input Voltage VIN VCC+0.3 V Collector Output Voltage VOUT 41 V Collector Output Current ICO 250 mA Power Dissipation (TA=25C) PD 1000 mW Derate at TA>25C 9.2 mW/ C Junction Temperature TJ 125 C Operating Temperature TOPR -25 ~ +85 C Storage Temperature TSTG -40 ~ +150 C Note 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. 2. All voltage values, except differential voltages are with respect to the network ground terminal. RECOMMENDED OPERATING CONDITIONS PARAMETER SYMBOL MIN TYP MAX UNIT Supply Voltage VCC 7 40 V Amplifier Input Voltage VIN -0.3 VCC-2 V Collector Output Voltage VOUT 40 V Collector Output Current (each Transistor) IC 200 mA Current into Feedback If 0.3 mA Timing Capacitor CT 0.47 10000 nF Timing Resistor RT 1.8 500 kΩ Oscillator Frequency fOSC 1 300 kHz Operating Free-Air Temperature TA 0 70 C ELECTRICAL CHARACTERISTICS (Over recommended operating free-air temperature range, VCC=15V, f=1kHz, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT REFERENCE SECTION Output Voltage VOUT IOUT=1mA 4.75 5 5.25 V Input Regulation VIN VCC=7V ~ 40V 2 25 mV Output Regulation VOUT IOUT=1 ~ 10mA 1 15 mV Output Voltage Change with Temperature TA=MIN ~ MAX(note 2) 0.2 1 % Short-Circuit Output Current IO(SC) VREF=0 35 mA OSCILLATOR SECTION Frequency F CT=0.01μF, RT=12kΩ 10 kHz Standard Deviation of Frequency All Values of VCC CT, RT, TA constant 10 % Frequency Change with Voltage VCC=7V ~ 40V,Ta=25C 0.1 % Frequency Change with Temperature CT=0.01μF, RT=12kΩ, TA=MIN ~ MAX 12 % |
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