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NCP1653P Datasheet(PDF) 4 Page - ON Semiconductor |
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NCP1653P Datasheet(HTML) 4 Page - ON Semiconductor |
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4 / 20 page  NCP1653, NCP1653A http://onsemi.com 4 ELECTRICAL CHARACTERISTICS (For typical values TJ = 25°C. For min/max values, TJ = −40°C to +125°C, VCC = 15 V, IFB = 100 mA, Ivac = 30 mA, IS = 0 mA, unless otherwise specified) Characteristics Pin Symbol Min Typ Max Unit OSCILLATOR Switching Frequency NCP1653 NCP1653A 7 fSW 90 60.3 102 67 110 73.7 kHz Maximum Duty Cycle (VM = 0 V) (Note 3) 7 Dmax 94 − − % GATE DRIVE Gate Drive Resistor Output High and Draw 100 mA out of Drv pin (Isource = 100 mA) Output Low and Insert 100 mA into Drv pin (Isink = 100 mA) 7 ROH ROL 5.0 2.0 9.0 6.6 20 18 W W Gate Drive Rise Time from 1.5 V to 13.5 V (Drv = 2.2 nF to Gnd) 7 tr − 88 − ns Gate Drive Fall Time from 13.5 V to 1.5 V (Drv = 2.2 nF to Gnd) 7 tf − 61.5 − ns FEEDBACK / OVERVOLTAGE PROTECTION / UNDERVOLTAGE PROTECTION Reference Current (VM = 3 V) 1 Iref 192 204 208 mA Regulation Block Ratio 1 IregL/Iref 95 96 98 % Vcontrol Pin Internal Resistor 2 Rcontrol − 300 − k W Maximum Control Voltage (IFB = 100 mA) 2 Vcontrol(max) − 2.4 − V Maximum Control Current (Icontrol(max) = Iref / 2) 2 Icontrol(max) − 100 − mA Feedback Pin Voltage (IFB = 100 mA) Feedback Pin Voltage (IFB = 200 mA) 1 VFB1 1.0 1.3 1.5 1.8 1.9 2.2 V V Overvoltage Protection OVP Ratio Current Threshold Propagation Delay 1 IOVP/Iref IOVP tOVP 104 − − 107 214 500 − 230 − % mA ns Undervoltage Protection (VM = 3 V) UVP Activate Threshold Ratio UVP Deactivate Threshold Ratio UVP Lockout Hysteresis Propagation Delay 1 IUVP(on)/Iref IUVP(off)/Iref IUVP(H) tUVP 4.0 7.0 4.0 − 8.0 12 8.0 500 15 20 − − % % mA ns CURRENT SENSE Current Sense Pin Offset Voltage (IS = 100 mA) 4 VS 0 10 30 mV Overcurrent Protection Threshold (VM = 1 V) 4 IS(OCP) 185 200 215 mA OVERPOWER LIMITATION Input Voltage Sense Pin Internal Resistor 4 Rvac(int) − 12 − k W Over Power Limitation Threshold 3−4 IS × Ivac − 3.0 − nA2 Sense Current Threshold (Ivac = 30 mA, VM = 3 V) Sense Current Threshold (Ivac = 100 mA, VM = 3 V) 4 IS(OPL1) IS(OPL2) 80 24 100 32 140 48 mA mA CURRENT MODULATION PWM Comparator Reference Voltage 5 Vref 2.25 2.62 2.75 V Multiplier Current (Vcontrol = Vcontrol(max), Ivac = 30 mA, IS = 25 mA) Multiplier Current (Vcontrol = Vcontrol(max), Ivac = 30 mA, IS = 75 mA) Multiplier Current (Vcontrol = Vcontrol(max) / 10, Ivac = 30 mA, IS = 25 mA) Multiplier Current (Vcontrol = Vcontrol(max) / 10, Ivac = 30 mA, IS = 75 mA) 5 IM1 IM2 IM3 IM4 1.0 3.2 10 30 2.85 9.5 35 103.5 5.8 18 58 180 mA mA mA mA THERMAL SHUTDOWN Thermal Shutdown Threshold (Note 3) − TSD 150 − − °C Thermal Shutdown Hysteresis − − − 30 − °C 3. Guaranteed by design. |
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