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NCP348MTTBG Datasheet(PDF) 4 Page - ON Semiconductor |
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NCP348MTTBG Datasheet(HTML) 4 Page - ON Semiconductor |
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4 / 12 page  NCP348 http://onsemi.com 4 ELECTRICAL CHARACTERISTICS (Min/Max limits values (−40 °C < TA < +85°C) and Vin = +5.0 V. Typical values are TA = +25°C, unless otherwise noted.) Characteristic Symbol Conditions Min Typ Max Unit Input Voltage Range Vin − 1.2 − 28 V Undervoltage Lockout Threshold (Note 4) UVLO − 3.00 3.25 3.5 V Undervoltage Lockout Hysteresis UVLOhyst − 20 50 100 mV Overvoltage Lockout Threshold (Note 4) OVLO Vin rises up OVLO threshold 6.00 6.4 6.8 V Overvoltage Lockout Hysteresis OVLOhyst − 50 100 150 mV Vin versus Vout Resistance RDS(on) Vin = 5.0 V, EN = GND, Load connected to Vout − 65 120 m W Disable Quiescent Current Idddis Vin = 5.0 V, EN = 1.2 V, Load connected to Vout − 6.0 20 mA Supply Quiescent Current Idd No load. EN = 5.0 V − 90 150 mA No load. EN = Gnd − 170 250 mA UVLO Supply Current Idduvlo VIN = 2.9 V − 70 100 mA FLAG Output Low Voltage Volflag 1.2 V < VIN < UVLO Sink 50 mA on/FLAG pin − 20 400 mV VIN > OVLO Sink 1.0 mA on FLAG pin − − 400 mV FLAG Leakage Current FLAGleak FLAG level = 5.0 V − 1.0 − nA EN Voltage High Vih − 1.2 − − V EN Voltage Low Vol − − − 0.4 V EN Leakage Current ENleak EN = 5.0 V or GND − 1.0 − nA TIMINGS Startup Delay ton From Vin > UVLO to Vout = 0.3 V (See Figures 3 & 7) 30 55 70 ms FLAG Going Up Delay tstart From Vout = 0.3 V to FLAG = 1.2 V (See Figures 3 & 9) 30 50 70 ms Output Turn Off Time toff From Vin > OVLO to Vout < = 0.3 V (See Figures 4 & 8) Vin increasing from 5.0 V to 8.0 V at 3.0 V/ ms Rload connected on Vout − 1.5 5.0 ms Alert Delay tstop From Vin > OVLO to FLAG < = 0.4 V (See Figures 4 & 10) Vin increasing from 5.0 V to 8.0 V at 3.0 V/ ms Rload connected on Vout − 1.0 − ms Disable Time tdis From EN > = 1.2 V to Vout < 0.3 V Rload = 5.0 W (See Figures 5 & 12) − 1.0 5.0 ms NOTE: Electrical parameters are guaranteed by correlation across the full range of temperature. 4. Additional UVLO and OVLO thresholds ranging from UVLO and from OVLO can be manufactured. Contact your ON Semiconductor representative for availability. |
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