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NCP1601A bảng dữ liệu(PDF) 4 Page - ON Semiconductor |
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NCP1601A bảng dữ liệu(HTML) 4 Page - ON Semiconductor |
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4 / 18 page  NCP1601A, NCP1601B 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, Vcontrol = 100 nF, Ramp = 100 pF, Osc = 220 pF unless otherwise specified) Characteristic Pin Symbol Min Typ Max Unit OSCILLATOR Oscillator Frequency (Osc = 220 pF to GND) 5 fosc 52 58 64 kHz Internal Capacitance of the Oscillator Pin 5 Cosc(int) − 36 − pF Maximum Oscillator Switching Frequency 5 fosc(max) − 405 − kHz Oscillator Discharge Current (Osc = 5.5 V) 5 Iodch 40 49 60 mA Oscillator Charge Current (Osc = 3 V) 5 Ioch 40 45 60 mA Comparator Lower Threshold (Osc = 220 pF to GND) (Note 3) 5 Vsync(L) 3.0 3.5 4.0 V Comparator Upper Threshold (Osc = 220 pF to GND) 5 Vsync(H) 4.5 5 5.5 V Synchronization Pulse Width for Detection 5 tsync(min) 500 − − ns Synchronization Propagation Delay 5 tsync(d) − 371 − ns 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 2 11.6 7.2 20 18 W W Gate Drive Rise Time from 1.5 V to 13.5 V (Drv = 1 nF to GND) 7 tr − 53 − ns Gate Drive Fall Time from 13.5 V to 1.5 V (Drv = 1 nF to GND) 7 tf − 32 − ns FEEDBACK / OVERVOLTAGE PROTECTION / UNDERVOLTAGE PROTECTION Reference Current 1 Iref 192 203 208 mA Regulation Block Ratio 1 IregL / Iref 95 96 97 % Vcontrol Pin Internal Resistor 2 Rcontrol − 300 − k W Maximum Control Voltage (IFB = 100 mA) 2 Vcontrol(max) 0.95 1.05 1.15 V Feedback Pin Voltage (IFB = 100 mA) 1 VFB1 − 3 − V Overvoltage Protection Current Ratio 1 IOVP / Iref 104 107 − % Overvoltage Protection Current 1 IOVP − 217 225 mA Undervoltage Protection Current Ratio 1 IUVP / Iref 4 8 15 % CURRENT SENSE Current Sense Pin Offset Voltage (IS = 100 mA) 4 VS − 4 − mV Overcurrent Protection Level 4 IS(OCP) 190 203 210 mA Current Sense Pin Offset Voltage at Overcurrent Level 4 VS(OCP) 0 3.2 20 mV Zero Current Detection Level 4 IS(ZCD) 9 14 19 mA Current Sense Pin Offset Voltage at Zero Current Level 4 VS(ZCD) 0 7.5 20 mV Zero Current Sense Resistor (RS(ZCD) = VS(ZCD) / IS(ZCD)) 4 RS(ZCD) − 0.536 1 k W RAMP Charging Current (Ramp = 0 V) 3 Ich 95 100 105 mA Maximum Power Resistance (Rpower = Vcontrol(max) / Ich) 3 Rpower 9.5 10.5 11.5 k W Internal Clamping of Voltage Vton − Vton(max) − 3.9 − V Internal Capacitance of the Ramp Pin 3 Cramp(int) − 20 − pF Ramp Pin Sink Resistance (Osc = 0 V, Ramp = 1 mA sourcing) 3 Rramp − 71.5 − W THERMAL SHUTDOWN Thermal Shutdown Threshold (Note 4) − TSD 140 − − °C Thermal Shutdown Hysteresis − TH − 45 − °C 2. Comparator lower threshold is also the synchronization threshold. 3. Guaranteed by design. |
Số phần tương tự - NCP1601A |
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Mô tả tương tự - NCP1601A |
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