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NCV894630 Datasheet(PDF) 5 Page - ON Semiconductor |
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NCV894630 Datasheet(HTML) 5 Page - ON Semiconductor |
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5 / 9 page  NCV894630 www.onsemi.com 5 ELECTRICAL CHARACTERISTICS (2.7 V < VIN < 5.5 V, Min and Max values are valid for the temperature range −40°C ≤ TJ ≤ +150°C unless noted otherwise, and are guaranteed by test, design or statistical correlation. Typical values are referenced to TA = +25°C) Rating Conditions Symbol Min Typ Max Unit INPUT VOLTAGE Quiescent Current SYNC = GND, VFB = 0 V, EN = 2 V, (No Switching) Iq − 1.0 2.0 mA Shutdown Current EN = 0 V IOFF − − 10 mA Under Voltage Lockout VIN falling VUVLO 2.2 2.4 2.6 V Under Voltage Hysteresis VUVLOH − 100 150 mV SYNC SYNC Threshold Voltage Logic Low Logic High VILSYNC VIHSYNC − 1.2 − − 0.4 − V SYNC Input Current VSYNC = 5 V ISYNC 2.0 − 50 mA External Synchronization fSYNC 1.8 − 2.7 MHz SYNC Pulse Duty Ratio DSYNC − 50 − % ENABLE Enable Threshold Voltage Logic Low Logic High VILEN VIHEN − 1.2 − − 0.4 − V Enable Input Current VEN = 5 V IEN 2 − 50 mA POWER ON RESET Power On Reset Threshold VOUT falling VPORT 87 90 93 %Vout Power On Reset Hysteresis VPORH − − 3.0 %Vout POR Sink Current VPOR = 0.4 V IPOR 2.0 − − mA FEEDBACK VOLTAGE Feedback Voltage (Accuracy %) TJ = −40°C to 125°C VFB 0.591 (−1.5%) 0.6 0.609 (+1.5%) V Soft−Start Time Time from EN to 90% of VFB tSS 1700 2000 3200 ms SWITCHING FREQUENCY Switching Frequency FSW 1.8 2.1 2.4 MHz Duty Cycle D − − 100 % Minimum On Time TONmin − − 80 ns POWER SWITCHES High−Side MOSFET On−Resistance IRDS(on) = 0.6 A, VIN = 5 V, TJ = 25°C RDS(on)H − 300 550 m W Low−Side MOSFET On−Resistance IRDS(on) = 0.6 A, VIN = 5 V, TJ = 25°C RDS(on)L − 300 550 m W High−Side MOSFET Leakage Current VIN = 5 V, VSW = 0 V, VEN = 0 V IDS(off)H − − 5.0 mA Low−Side MOSFET Leakage Current VSW = 5 V, VEN = 0 V IDS(off)L − − 5.0 mA CURRENT LIMIT PROTECTION Current Limit Peak Inductor Current (100% duty cycle) IPK 3.0 − 4.0 A Negative Current Limit INPK − 200 − mA THERMAL SHUTDOWN Thermal Shutdown Temperature Guaranteed by Design TSD 150 170 190 °C Thermal Shutdown Hysteresis Guaranteed by Design TSH 5.0 − 20 °C Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. |
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