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AP3842GP Datasheet(PDF) 5 Page - BCD Semiconductor Manufacturing Limited |
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AP3842GP Datasheet(HTML) 5 Page - BCD Semiconductor Manufacturing Limited |
5 / 13 page GREEN MODE PWM CONTROLLER AP384XG Data Sheet 5 Aug. 2005 Rev. 1. 2 BCD Semiconductor Manufacturing Limited (VCC=15V, RT=10kΩ CT=3.3nF, TA= -40 to 85 oC, unless otherwise specified.) Parameter Symbol Conditions Min Typ Max Unit REFERENCE SECTION Reference Output Voltage VREF TJ=25 oC, I REF=1mA 4.95 5.00 5.05 V Total Output Variation Line, Load, Temp. 4.9 5.10 V Line Regulation ∆V REF 12V ≤ V CC ≤25V 4 15 mV Load Regulation ∆V REF 1mA ≤ I REF ≤20mA 4 15 mV Short Circuit Output Current ISC TA=25 oC -100 -180 mA Temperature Stability 0.2 0.4 mV/oC UNDER VOLTAGE LOCK OUT SECTION Start-up Threshold AP3842G/AP3844G 15 16 17 V AP3843G/AP3845G 7.8 8.4 9.0 Minimum Operating Voltage AP3842G/AP3844G 8.5 10 11.5 V AP3843G/AP3845G 7.0 7.6 8.2 TOTAL STANDBY CURRENT SECTION Start-up Current VCC=14V 50 80 µA Operating Current VFB=0, VCS=0, CL=1nF 8 mA Standby Operating Current VFB=2.7V, VCS=0.5V 6 mA Zener Voltage ICC=25mA 30 34 V PWM SECTION Maximum Duty Cycle AP3842G/AP3843G 94 96 % AP3844G/AP3845G 46 48 50 Minimum Duty Cycle 0% OSCILLATOR SECTION Oscillation Frequency f TJ=25 oC 47 52 57 KHz Oscillator Amplitude VOSC Pin RT/CT, peak to peak 1.7 V Temperature Stability 2 % Voltage Stability 12V ≤ VCC ≤ 25V 0.2 1 % Discharge Current VRT/CT = 2V (Note 4) 8.5 9.5 10.5 mA Note 4: This parameter is measured with RT=10kΩ to VREF, it contributes 0.3mA of current to the measured value. So the total current flowing into the CT pin will be 0.3mA higher than the measured value approximately. Electrical Characteristics |
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