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UC3842GP-S08-R Datasheet(PDF) 4 Page - Unisonic Technologies |
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UC3842GP-S08-R Datasheet(HTML) 4 Page - Unisonic Technologies |
4 / 8 page UC3842G LINEAR INTEGRATED CIRCUIT UNISONICTECHNOLOGIESCO.,LTD 4 of 8 www.unisonic.com.tw QW-R103-036.B ABSOLUTE MAXIMUM RATINGS (Ta=25°C) PARAMETER SYMBOL RATINGS UNIT Supply Voltage (Low Impedance Source) VCC 30 V Supply Voltage (ICC<30mA) VCC Self Limiting V Output Current (Peak) IO(PEAK) ±1 A Output Energy (Capacity load) 5 μJ Junction Temperature TJ +150 °C Operating Temperature TOPR -40 ~ +125 °C Storage Temperature TSTG -65 ~ +150 °C Note: 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. ELECTRICAL CHARACTERISTICS (0°C≤Ta≤70°C, VCC=15V, CT=3.3nF , unless otherwise specified) PARAMETER SYMBOL TEST CONDITION MIN TYP MAX UNIT STANDBY SECTION Reduce Frequency Point of Standby Mode VCOMP Right load 2.2 V REFERENCE SECTION Reference Output Voltage VREF IOUT=1.0mA 4.95 5.0 5.05 V Line Regulation ΔVREF 12V≤VCC≤25V 3 20 mV Load Regulation ΔVREF IOUT=1.0mA to 20mA 8 25 mV Output Short Circuit Current ISC -30 -65 -180 mA OSCILLATOR SECTION Frequency fOSC Normal 49 52 55 KHz Frequency Change ΔfOSC/ΔV 12V≤VCC≤25V 0.2 1.0 % VOSC(P-P) 1.6 V VOSCL 1.2 V Oscillator Voltage VOSCH 2.8 V ERROR AMPLIFIER SECTION Input Voltage VI(EA) VCOMP=2.5V 2.42 2.50 2.58 V Input Bias Current II(BIAS) VFB=5V -0.3 -2 μA AVOL 2V≤VOUT≤4V 60 90 dB Unity Gain Bandwidth TJ=25°C(Note1) 0.7 1 MHz PSRR 12V≤VCC≤25V 60 70 dB Output Sink Current ISINK VFB=2.7V, VCOMP=1.1V 2 4 mA Output Source Current ISOURCE VFB=2.3V, VCOMP=5V -0.5 1 mA VOUT High VOH VFB=2.3V, RL=15K to GND 5.0 5.6 V VOUT Low VOL VFB=2.7V, RL=15K to VREF 0.8 1.1 V CURRENT SENSE SECTION Gain GV (Note2,3) 2.85 3 3.15 V/V Maximum Input Signal VI(MAX) VCOMP=5V(Note2) 0.9 1 1.1 V PSRR 12V≤VCC≤25V 70 dB Input Bias Current IBIAS -2 -10 μA Delay to Output 150 300 nS |
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