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UC3845L-S08-T Datasheet(PDF) 3 Page - E-Tech Electronics LTD |
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UC3845L-S08-T Datasheet(HTML) 3 Page - E-Tech Electronics LTD |
3 / 6 page UC3844/45 LINEAR INTEGRATED CIRCUIT UNISONICTECHNOLOGIESCO.,LTD 3 of 6 www.unisonic.com.tw QW-R103-010.E ABSOLUTE MAXIMUM RATINGS (TA=25℃) PARAMETER SYMBOL RATINGS UNIT Total Power Supply and Zener Current (ICC+Iz) 30 mA Output Current, Source or Sink (Note 2) IOUT 1.0 A Output Energy (Capacitive Load per cycle) W 5.0 μJ Current Sense and Voltage feedback Inputs VIN -0.3 ~ +5.5 V Error Amp Output Sink Current ISINK 10 mA Power Dissipation SOP-8 PD 862 mW DIP-8 1250 mW Junction Temperature TJ +150 ℃ Operation Temperature TOPR 0 ~ 70 ℃ Storage Temperature TSTG -65 ~ +150 ℃ 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.Maxmum package power dissipation limits must be observed. THERMAL DATA PARAMETER SYMBOL RATINGS UNIT Junction to Ambient SOP-8 θJA 145 ℃ /W DIP-8 100 ℃ /W ELECTRICAL CHARACTERISTICS (TA=25℃, VCC=15V, RT=10k, CT=3.3nF, 0℃ ≤ TA ≤ 70℃, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT REFERENCE SECTION Reference Output Voltage VREF IOUT=1.0mA,TJ=25℃ 4.9 5.0 5.1 V Line Regulation △ VOUT VCC=12V ~ 25V 2.0 20 mV Load Regulation △ VOUT IOUT=1.0mA ~ 20mA 3.0 25 mV Temperature Stability tS 0.2 mV/℃ Total Output Variation over Line, Load, Temperature VREF 4.82 5.18 V Output Noise Voltage eN f=10Hz ~ kHz, TJ=25℃ 50 μV Long Term Stability S TA=125℃ for 1000 Hours 5 mV Output Short Circuit Current ISC -30 -85 -180 mA OSCILLATOR SECTION Oscillator Voltage Swing VOSC 1.6 V Discharge Current IDSG VOSC=2.0V, TJ=25℃ 10.8 mA Frequency fOSC TJ=25℃ 47 52 57 kHz 0 °C ≤ TA ≤ 70℃ 46 60 Frequency Change with Voltage ΔfOSC/ΔV VCC=12V ~ 25V 0.2 1.0 % Frequency Change with Temperature ΔfOSC/ΔT 0 °C ≤ TA ≤ 70℃ 5.0 % ERROR AMPLIFIER SECTION Voltage Feedback Input VFB VOUT=2.5V 2.42 2.50 2.58 V Output Voltage Swing High VOH RL=15k to ground, VFB=2.3V 5.0 6.2 V Low VOL RL=15k to VREF, VFB=2.7V 0.8 1.1 Output Current Sink ISINK VOUT=1.1V, VFB=2.7V 2.0 12 mA Source ISOURCE VOUT=5.0V, VFB=2.3V -0.5 -1.0 Input Bias Current II(BIAS) VFB=2.7V -0.1 -2.0 μA Open Loop Voltage Gain GVO VOUT=2.0V ~ 4.0V 65 90 dB Power Supply Rejection Ratio PSRR VCC=12V ~ 25V 60 70 dB Unity Gain Bandwidth GBW TJ=25℃ 0.7 1.0 MHz |
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