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UC3843AL-S08-T 데이터시트(PDF) 4 Page - Unisonic Technologies |
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UC3843AL-S08-T 데이터시트(HTML) 4 Page - Unisonic Technologies |
4 / 9 page UC3842A/3843A LINEAR INTEGRATED CIRCUIT UNISONICTECHNOLOGIESCO.,LTD 4 of 9 www.unisonic.com.tw QW-R103-002.G ELECTRICAL CHARACTERISTICS(Cont.) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT 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 1.1 V PSRR 12V≦VCC≦25V 70 dB Input Bias Current IBIAS -2 -10 μA Delay to Output VPIN3=0 to 2V 150 300 ns OUTPUT SECTION Output Level Low VOL IO(SINK)=20mA 0.1 0.4 V IO(SINK)=200mA 1.5 2.2 V High VOH IO(SOURCE)=20mA 13 13.5 V IO(SOURCE)=200mA 12 13.5 V Rise Time tR TJ=25℃,CL=1nF (Note 1) 50 150 ns Fall Time tF TJ=25℃,CL=1nF (Note 1) 50 150 ns UNDER-VOLTAGE LOCKOUT OUTPUT SECTION Start Threshold 3842A VTH(ST) 14.5 16 17.5 V 3843A 7.8 8.4 9 V Min. Operating Voltage 3842A VOPR(MIN) After Turn On 8.5 10 11.5 V 3843A 7 7.6 8.2 V PWM SECTION Duty Cycle MAX D(MAX) 95 97 100 % MIN D(MIN) 0 % TOTAL STANDBY CURRENT Start-up Current IST 0.12 0.3 mA Operating Supply Current ICC(OPR) VPIN2=VPIN3=0V 11 17 mA VCC Zener Voltage Vz ICC=25mA 34 V Note:1. These parameters, although guaranteed, are not 100% tested in production. 2. Parameters measured at trip point of latch with VPIN 2=0. 3. Gain defined as: 4. Adjust VCC above the start threshold before setting at 15V. |
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