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NCP1217A Datasheet(PDF) 5 Page - ON Semiconductor |
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NCP1217A Datasheet(HTML) 5 Page - ON Semiconductor |
5 / 19 page NCP1217, NCP1217A http://onsemi.com 5 ELECTRICAL CHARACTERISTICS (continued) (For typical values TJ =25C, for min/max values TJ =0C to +125C, Max TJ = 150C, VCC = 11 V unless otherwise noted.) Characteristic Pin Symbol Min Typ Max Unit FEEDBACK SECTION (VCC = 11 V, Pin 5 Loaded by 1.0 kΩ) Internal Pull--Up Resistor 2 Rup -- 19 -- kΩ Pin 2 (FB) to Internal Current Setpoint Division Ratio -- Iratio -- 3.3 -- -- SKIP CYCLE GENERATION Default Skip Mode Level 1 Vskip 0.93 1.1 1.26 V Pin 1 Internal Output Impedance 1 Zout -- 27 -- kΩ INTERNAL RAMP COMPENSATION Internal Ramp Level @ 25C(Note 3) 3 Vramp 2.6 2.9 3.2 V Internal Ramp Resistance to CS Pin 3 Rramp -- 19 -- kΩ ADJUSTMENT LATCHOFF LEVEL Latching Level 1 Vlatch 2.69 3.10 3.42 V 3. A 1.0 MΩ resistor is connected to the ground for the measurement. TYPICAL CHARACTERISTICS --50 60 50 20 0 0 TEMPERATURE (C) 80 TEMPERATURE (C) 10 40 50 150 1.8 Figure 3. High Voltage Pin Leakage Current vs. Temperature Figure 4. VCCOFF vs. Temperature Figure 5. VCCMIN vs. Temperature Figure 6. ICC 1.0 nF Load vs. Temperature TEMPERATURE (C) 2.2 1.0 2.4 100 --50 13.5 50 12.0 0 11.0 14.0 11.5 12.5 13.0 150 100 --50 50 0 7.0 9.0 TEMPERATURE (C) 7.5 8.0 8.5 150 100 --50 50 0 150 100 1.4 1.6 2.0 1.2 70 30 65 kHz 100 kHz 133 kHz 2.8 3.0 2.6 |
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